API Reference
LlamaFarm provides a comprehensive REST API for managing projects, datasets, chat interactions, and RAG (Retrieval-Augmented Generation) operations. The API follows RESTful conventions and is compatible with OpenAI's chat completion format.
Base URL
The API is served at: http://localhost:8000
All versioned endpoints use the /v1 prefix:
http://localhost:8000/v1
Finding Your Namespace and Project Name
Understanding Namespaces and Projects
LlamaFarm organizes your work into namespaces (organizational containers) and projects (individual configurations):
- Namespace: A top-level organizational unit (e.g., your username, team name, or organization)
- Project Name: The unique identifier for a specific LlamaFarm project within a namespace
From Your llamafarm.yaml
The easiest way to find your namespace and project name is to check your llamafarm.yaml configuration file:
version: v1
name: my-project # This is your project name
namespace: my-org # This is your namespace
From the File System
Projects are stored in:
~/.llamafarm/projects/{namespace}/{project_name}/
For example, if you see:
~/.llamafarm/projects/acme-corp/chatbot/
Then:
- Namespace:
acme-corp - Project name:
chatbot
Using the API
You can also list projects programmatically:
# List all projects in a namespace
curl http://localhost:8000/v1/projects/my-org
Custom Data Directory
If you've set a custom data directory using the LF_DATA_DIR environment variable, check:
$LF_DATA_DIR/projects/{namespace}/{project_name}/
Authentication
Currently, the API does not require authentication. This is designed for local development environments. For production deployments, implement authentication at the reverse proxy or load balancer level.
Response Format
Success Responses
Successful requests return JSON with appropriate HTTP status codes (200, 201, etc.):
{
"field": "value",
...
}
Error Responses
Error responses follow a consistent format with appropriate HTTP status codes (400, 404, 500, etc.):
{
"detail": "Error message description"
}
Common HTTP status codes:
200 OK- Request succeeded201 Created- Resource created successfully400 Bad Request- Invalid request parameters404 Not Found- Resource not found422 Unprocessable Entity- Validation error500 Internal Server Error- Server error
API Endpoints Overview
Projects
GET /v1/projects/{namespace}- List projectsPOST /v1/projects/{namespace}- Create projectGET /v1/projects/{namespace}/{project}- Get project detailsPUT /v1/projects/{namespace}/{project}- Update project configurationDELETE /v1/projects/{namespace}/{project}- Delete project
Chat
POST /v1/projects/{namespace}/{project}/chat/completions- Send chat message (OpenAI-compatible)GET /v1/projects/{namespace}/{project}/chat/sessions/{session_id}/history- Get chat historyDELETE /v1/projects/{namespace}/{project}/chat/sessions/{session_id}- Delete chat sessionDELETE /v1/projects/{namespace}/{project}/chat/sessions- Delete all sessionsGET /v1/projects/{namespace}/{project}/models- List available models
Datasets
GET /v1/projects/{namespace}/{project}/datasets- List datasetsPOST /v1/projects/{namespace}/{project}/datasets- Create datasetDELETE /v1/projects/{namespace}/{project}/datasets/{dataset}- Delete datasetPOST /v1/projects/{namespace}/{project}/datasets/{dataset}/data- Upload file to datasetPOST /v1/projects/{namespace}/{project}/datasets/{dataset}/actions- Trigger dataset actions (ingest/process) via Celery tasksDELETE /v1/projects/{namespace}/{project}/datasets/{dataset}/data/{file_hash}- Remove file from dataset
RAG (Retrieval-Augmented Generation)
POST /v1/projects/{namespace}/{project}/rag/query- Query RAG systemGET /v1/projects/{namespace}/{project}/rag/health- Check RAG healthGET /v1/projects/{namespace}/{project}/rag/databases- List databasesGET /v1/projects/{namespace}/{project}/rag/databases/{database}- Get database detailsPOST /v1/projects/{namespace}/{project}/rag/databases- Create databasePATCH /v1/projects/{namespace}/{project}/rag/databases/{database}- Update databaseDELETE /v1/projects/{namespace}/{project}/rag/databases/{database}- Delete database
Tasks
GET /v1/projects/{namespace}/{project}/tasks/{task_id}- Get async task statusDELETE /v1/projects/{namespace}/{project}/tasks/{task_id}- Cancel running task
Event Logs
GET /v1/projects/{namespace}/{project}/event_logs- List event logsGET /v1/projects/{namespace}/{project}/event_logs/{event_id}- Get event details
Examples
GET /v1/examples- List available examplesGET /v1/examples/{example_id}/datasets- List example datasetsPOST /v1/examples/{example_id}/import-project- Import example as new projectPOST /v1/examples/{example_id}/import-data- Import example data into existing projectPOST /v1/examples/{example_id}/import-dataset- Import specific dataset from example
Models Cache
GET /v1/models- List cached modelsPOST /v1/models/download- Download/cache a modelDELETE /v1/models/{model_name}- Delete cached model
Health
GET /health- Overall health checkGET /health/liveness- Liveness probe
System
GET /- Basic hello endpointGET /info- System informationGET /v1/system/version-check- Check for CLI updates
Projects API
List Projects
List all projects in a namespace.
Endpoint: GET /v1/projects/{namespace}
Parameters:
namespace(path, required): The namespace to list projects from
Response:
{
"total": 2,
"projects": [
{
"namespace": "my-org",
"name": "chatbot",
"config": {
"version": "v1",
"name": "chatbot",
"namespace": "my-org",
"runtime": { ... },
...
}
}
]
}
Example:
curl http://localhost:8000/v1/projects/my-org
Create Project
Create a new project in a namespace.
Endpoint: POST /v1/projects/{namespace}
Parameters:
namespace(path, required): The namespace to create the project in
Request Body:
{
"name": "my-new-project",
"config_template": "server" // Optional: server, rag, or custom template name
}
Response:
{
"project": {
"namespace": "my-org",
"name": "my-new-project",
"config": { ... }
}
}
Example:
curl -X POST http://localhost:8000/v1/projects/my-org \
-H "Content-Type: application/json" \
-d '{"name": "chatbot", "config_template": "server"}'
Get Project
Get details of a specific project.
Endpoint: GET /v1/projects/{namespace}/{project}
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project name
Response:
{
"project": {
"namespace": "my-org",
"name": "chatbot",
"config": {
"version": "v1",
"name": "chatbot",
"namespace": "my-org",
"runtime": {
"provider": "ollama",
"model": "llama3.2:3b"
},
...
}
}
}
Example:
curl http://localhost:8000/v1/projects/my-org/chatbot
Update Project
Update a project's configuration.
Endpoint: PUT /v1/projects/{namespace}/{project}
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project name
Request Body:
{
"config": {
"version": "v1",
"name": "chatbot",
"namespace": "my-org",
"runtime": {
"provider": "ollama",
"model": "llama3.2:3b"
},
...
}
}
Response:
{
"project": {
"namespace": "my-org",
"name": "chatbot",
"config": { ... }
}
}
Example:
curl -X PUT http://localhost:8000/v1/projects/my-org/chatbot \
-H "Content-Type: application/json" \
-d @updated-config.json
Delete Project
Delete a project (currently returns project info; actual deletion not implemented).
Endpoint: DELETE /v1/projects/{namespace}/{project}
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project name
Response:
{
"project": {
"namespace": "my-org",
"name": "chatbot",
"config": { ... }
}
}
Chat API
Send Chat Message (OpenAI-Compatible)
Send a chat message to the LLM. This endpoint is compatible with OpenAI's chat completion API.
Endpoint: POST /v1/projects/{namespace}/{project}/chat/completions
Headers:
X-Session-ID(optional): Session ID for stateful conversations. If not provided, a new session is created.X-No-Session(optional): Set to any value for stateless mode (no conversation history)
Request Body:
{
"messages": [
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "What is LlamaFarm?"
}
],
"stream": false,
"temperature": 0.7,
"max_tokens": 1000,
"rag_enabled": true,
"database": "main_db",
"rag_top_k": 5,
"rag_score_threshold": 0.7
}
Request Fields:
messages(required): Array of chat messages withroleandcontentmodel(optional): Select which model to use (OpenAI-compatible, added in PR #263 multi-model support)stream(optional): Enable streaming responses (Server-Sent Events)temperature(optional): Sampling temperature (0.0-2.0)max_tokens(optional): Maximum tokens to generate for the answer (thinking tokens are separate)top_p(optional): Nucleus sampling parametertop_k(optional): Top-k sampling parameterrag_enabled(optional): Enable/disable RAG (uses config default if not specified)database(optional): Database to use for RAG queriesrag_top_k(optional): Number of RAG results to retrieverag_score_threshold(optional): Minimum similarity score for RAG resultsrag_queries(optional): Array of custom queries for RAG retrieval, overriding the user message. Can be a single query["my query"]or multiple queries["query1", "query2"]- results from multiple queries are executed concurrently, merged, and deduplicatedthink(optional): Enable thinking/reasoning mode for supported models like Qwen3 (default:false)thinking_budget(optional): Maximum tokens for thinking process whenthink: true(default:1024)
Response (Non-Streaming):
{
"id": "chatcmpl-123",
"object": "chat.completion",
"created": 1677652288,
"model": "llama3.2:3b",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "LlamaFarm is a framework for building AI applications..."
},
"finish_reason": "stop"
}
],
"usage": {
"prompt_tokens": 20,
"completion_tokens": 100,
"total_tokens": 120
}
}
Response Headers:
X-Session-ID: The session ID (only in stateful mode)
Streaming Response:
When stream: true, the response is sent as Server-Sent Events:
data: {"id":"chatcmpl-123","object":"chat.completion.chunk","created":1677652288,"model":"llama3.2:3b","choices":[{"index":0,"delta":{"role":"assistant","content":"Llama"},"finish_reason":null}]}
data: {"id":"chatcmpl-123","object":"chat.completion.chunk","created":1677652288,"model":"llama3.2:3b","choices":[{"index":0,"delta":{"content":"Farm"},"finish_reason":null}]}
data: [DONE]
Example (Non-Streaming):
curl -X POST http://localhost:8000/v1/projects/my-org/chatbot/chat/completions \
-H "Content-Type: application/json" \
-d '{
"messages": [
{"role": "user", "content": "Hello!"}
]
}'
Example (Streaming):
curl -X POST http://localhost:8000/v1/projects/my-org/chatbot/chat/completions \
-H "Content-Type: application/json" \
-d '{
"messages": [
{"role": "user", "content": "Hello!"}
],
"stream": true
}'
Example (Stateless):
curl -X POST http://localhost:8000/v1/projects/my-org/chatbot/chat/completions \
-H "Content-Type: application/json" \
-H "X-No-Session: true" \
-d '{
"messages": [
{"role": "user", "content": "Hello!"}
]
}'
Example (With RAG):
curl -X POST http://localhost:8000/v1/projects/my-org/chatbot/chat/completions \
-H "Content-Type: application/json" \
-d '{
"messages": [
{"role": "user", "content": "What are the FDA regulations?"}
],
"rag_enabled": true,
"database": "fda_db",
"rag_top_k": 10
}'
Example (With Thinking/Reasoning):
For models that support chain-of-thought reasoning (like Qwen3), enable thinking mode to see the model's reasoning process:
curl -X POST http://localhost:8000/v1/projects/my-org/chatbot/chat/completions \
-H "Content-Type: application/json" \
-d '{
"messages": [
{"role": "user", "content": "What is 15% of 85?"}
],
"think": true,
"thinking_budget": 512,
"max_tokens": 200
}'
Response with Thinking:
{
"id": "chatcmpl-123",
"object": "chat.completion",
"created": 1677652288,
"model": "Qwen3-1.7B",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "15% of 85 is **12.75**."
},
"finish_reason": "stop"
}
],
"thinking": {
"content": "To find 15% of 85, I need to multiply 85 by 0.15. Let me calculate: 85 × 0.15 = 12.75.",
"tokens": null
}
}
Token Allocation with Thinking:
max_tokens: Controls the answer length (default: 512)thinking_budget: Controls the thinking length (default: 1024 when enabled)- Total generation =
thinking_budget+max_tokens
This ensures your answer isn't cut short by the thinking process.
Example (Custom RAG Query):
Override the default RAG query (which uses the user message) with a custom search query. This is useful when the user's question is conversational but you want specific technical retrieval:
curl -X POST http://localhost:8000/v1/projects/my-org/chatbot/chat/completions \
-H "Content-Type: application/json" \
-d '{
"messages": [
{"role": "user", "content": "Can you summarize the key findings?"}
],
"rag_enabled": true,
"database": "research_db",
"rag_queries": ["clinical trial results primary endpoints efficacy safety"]
}'
Example (Multiple Custom RAG Queries):
Execute multiple search queries concurrently and merge the results. This is useful for comparative analysis or comprehensive retrieval:
curl -X POST http://localhost:8000/v1/projects/my-org/chatbot/chat/completions \
-H "Content-Type: application/json" \
-d '{
"messages": [
{"role": "user", "content": "Compare the two approaches"}
],
"rag_enabled": true,
"database": "research_db",
"rag_queries": [
"machine learning neural network methodology",
"traditional statistical analysis regression"
],
"rag_top_k": 10
}'
Results from multiple queries are automatically executed concurrently, merged, deduplicated by content, sorted by relevance score, and limited to rag_top_k total results.
Get Chat History
Retrieve conversation history for a session.
Endpoint: GET /v1/projects/{namespace}/{project}/chat/sessions/{session_id}/history
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project namesession_id(path, required): Session ID
Response:
{
"messages": [
{
"role": "user",
"content": "Hello!"
},
{
"role": "assistant",
"content": "Hi! How can I help you today?"
}
]
}
Example:
curl http://localhost:8000/v1/projects/my-org/chatbot/chat/sessions/abc-123/history
Delete Chat Session
Delete a specific chat session and its history.
Endpoint: DELETE /v1/projects/{namespace}/{project}/chat/sessions/{session_id}
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project namesession_id(path, required): Session ID
Response:
{
"message": "Session abc-123 deleted"
}
Example:
curl -X DELETE http://localhost:8000/v1/projects/my-org/chatbot/chat/sessions/abc-123
Delete All Chat Sessions
Delete all chat sessions for a project.
Endpoint: DELETE /v1/projects/{namespace}/{project}/chat/sessions
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project name
Response:
{
"message": "Deleted 5 session(s)",
"count": 5
}
Example:
curl -X DELETE http://localhost:8000/v1/projects/my-org/chatbot/chat/sessions
List Available Models
List all configured models for a project.
Endpoint: GET /v1/projects/{namespace}/{project}/models
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project name
Response:
{
"total": 2,
"models": [
{
"name": "fast-model",
"provider": "ollama",
"model": "llama3.2:3b",
"base_url": "http://localhost:11434/v1",
"default": true,
"description": "Fast model for quick responses"
},
{
"name": "smart-model",
"provider": "ollama",
"model": "llama3.2:70b",
"base_url": "http://localhost:11434/v1",
"default": false,
"description": "Larger model for complex tasks"
}
]
}
Example:
curl http://localhost:8000/v1/projects/my-org/chatbot/models
Datasets API
List Datasets
List all datasets in a project.
Endpoint: GET /v1/projects/{namespace}/{project}/datasets
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project nameinclude_extra_details(query, optional): Include detailed file information (default: true)
Response:
{
"total": 2,
"datasets": [
{
"name": "research_papers",
"database": "main_db",
"data_processing_strategy": "universal_processor",
"files": ["abc123", "def456"],
"details": {
"total_files": 2,
"total_size_bytes": 1048576,
"file_details": [
{
"hash": "abc123",
"original_filename": "paper1.pdf",
"size": 524288,
"timestamp": 1677652288.0
}
]
}
}
]
}
Example:
curl http://localhost:8000/v1/projects/my-org/chatbot/datasets
Get Available Strategies
Get available data processing strategies and databases for a project.
Endpoint: GET /v1/projects/{namespace}/{project}/datasets/strategies
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project name
Response:
{
"data_processing_strategies": ["universal_processor", "custom_strategy"],
"databases": ["main_db", "research_db"]
}
Example:
curl http://localhost:8000/v1/projects/my-org/chatbot/datasets/strategies
Create Dataset
Create a new dataset.
Endpoint: POST /v1/projects/{namespace}/{project}/datasets
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project name
Request Body:
{
"name": "research_papers",
"data_processing_strategy": "universal_processor",
"database": "main_db"
}
Response:
{
"dataset": {
"name": "research_papers",
"database": "main_db",
"data_processing_strategy": "universal_processor",
"files": []
}
}
Example:
curl -X POST http://localhost:8000/v1/projects/my-org/chatbot/datasets \
-H "Content-Type: application/json" \
-d '{
"name": "research_papers",
"data_processing_strategy": "universal_processor",
"database": "main_db"
}'
Delete Dataset
Delete a dataset.
Endpoint: DELETE /v1/projects/{namespace}/{project}/datasets/{dataset}
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project namedataset(path, required): Dataset name
Response:
{
"dataset": {
"name": "research_papers",
"database": "main_db",
"data_processing_strategy": "universal_processor",
"files": []
}
}
Example:
curl -X DELETE http://localhost:8000/v1/projects/my-org/chatbot/datasets/research_papers
Upload File to Dataset
Upload a file to a dataset (stores the file but does not process it).
Endpoint: POST /v1/projects/{namespace}/{project}/datasets/{dataset}/data
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project namedataset(path, required): Dataset name
Request:
- Content-Type:
multipart/form-data - Body: File upload with field name
file
Response:
{
"filename": "paper1.pdf",
"hash": "abc123def456",
"processed": false
}
Example:
curl -X POST http://localhost:8000/v1/projects/my-org/chatbot/datasets/research_papers/data \
-F "file=@paper1.pdf"
Process Dataset
Processing is now driven exclusively through the dataset actions endpoint, which queues Celery tasks and returns a task ID you can poll later.
Endpoint: POST /v1/projects/{namespace}/{project}/datasets/{dataset}/actions
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project namedataset(path, required): Dataset nameaction_type(body, required):"process"(alias"ingest")
Request Body:
{
"action_type": "process"
}
Response:
{
"message": "Accepted",
"task_uri": "http://localhost:8000/v1/projects/my-org/chatbot/tasks/8f6f9c2a",
"task_id": "8f6f9c2a"
}
Use task_uri/task_id with GET /v1/projects/{namespace}/{project}/tasks/{task_id} to monitor progress. When the Celery task finishes, the result payload matches the historical ProcessDatasetResponse structure (processed/skipped/failed counts plus per-file details).
Example:
curl -X POST http://localhost:8000/v1/projects/my-org/chatbot/datasets/research_papers/actions \
-H "Content-Type: application/json" \
-d '{"action_type":"process"}'
Remove File from Dataset
Remove a file from a dataset.
Endpoint: DELETE /v1/projects/{namespace}/{project}/datasets/{dataset}/data/{file_hash}
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project namedataset(path, required): Dataset namefile_hash(path, required): Hash of the file to removeremove_from_disk(query, optional): Also delete the file from disk (default: false)
Response:
{
"file_hash": "abc123"
}
Example:
curl -X DELETE http://localhost:8000/v1/projects/my-org/chatbot/datasets/research_papers/data/abc123
Example (Remove from disk):
curl -X DELETE "http://localhost:8000/v1/projects/my-org/chatbot/datasets/research_papers/data/abc123?remove_from_disk=true"
RAG API
Query RAG System
Perform a semantic search query against a RAG database.
Endpoint: POST /v1/projects/{namespace}/{project}/rag/query
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project name
Request Body:
{
"query": "What are the clinical trial requirements?",
"database": "fda_db",
"top_k": 5,
"score_threshold": 0.7,
"retrieval_strategy": "hybrid",
"metadata_filters": {
"document_type": "regulation"
}
}
Request Fields:
query(required): The search query textdatabase(optional): Database name (uses default if not specified)top_k(optional): Number of results to return (default: 5)score_threshold(optional): Minimum similarity scoreretrieval_strategy(optional): Strategy to use for retrievalmetadata_filters(optional): Filter results by metadatadistance_metric(optional): Distance metric to usehybrid_alpha(optional): Alpha parameter for hybrid searchrerank_model(optional): Model to use for rerankingquery_expansion(optional): Enable query expansionmax_tokens(optional): Maximum tokens in results
Response:
{
"query": "What are the clinical trial requirements?",
"results": [
{
"content": "Clinical trials must follow FDA regulations...",
"score": 0.92,
"metadata": {
"document_id": "fda_21cfr312",
"page": 5,
"document_type": "regulation"
},
"chunk_id": "chunk_123",
"document_id": "fda_21cfr312"
}
],
"total_results": 5,
"processing_time_ms": 45.2,
"retrieval_strategy_used": "hybrid",
"database_used": "fda_db"
}
Example:
curl -X POST http://localhost:8000/v1/projects/my-org/chatbot/rag/query \
-H "Content-Type: application/json" \
-d '{
"query": "What are the clinical trial requirements?",
"database": "fda_db",
"top_k": 5
}'
List RAG Databases
List all configured RAG databases and their associated strategies for a project.
Endpoint: GET /v1/projects/{namespace}/{project}/rag/databases
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project name
Response:
{
"databases": [
{
"name": "main_db",
"type": "ChromaStore",
"is_default": true,
"embedding_strategies": [
{
"name": "default_embeddings",
"type": "OllamaEmbedder",
"priority": 0,
"is_default": true
}
],
"retrieval_strategies": [
{
"name": "basic_search",
"type": "BasicSimilarityStrategy",
"is_default": true
}
]
}
],
"default_database": "main_db"
}
Example:
curl http://localhost:8000/v1/projects/my-org/chatbot/rag/databases
Get Database Details
Get detailed information about a specific RAG database including its configuration and dependent datasets.
Endpoint: GET /v1/projects/{namespace}/{project}/rag/databases/{database_name}
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project namedatabase_name(path, required): Name of the database
Response:
{
"name": "main_db",
"type": "ChromaStore",
"config": {
"collection_name": "documents",
"distance_function": "cosine"
},
"embedding_strategies": [
{
"name": "default_embeddings",
"type": "OllamaEmbedder",
"config": {
"model": "nomic-embed-text",
"dimension": 768
},
"priority": 0
}
],
"retrieval_strategies": [
{
"name": "basic_search",
"type": "BasicSimilarityStrategy",
"config": { "top_k": 10 },
"default": true
}
],
"default_embedding_strategy": "default_embeddings",
"default_retrieval_strategy": "basic_search",
"dependent_datasets": ["research_papers", "documentation"]
}
Example:
curl http://localhost:8000/v1/projects/my-org/chatbot/rag/databases/main_db
Create Database
Create a new RAG database in the project configuration.
Endpoint: POST /v1/projects/{namespace}/{project}/rag/databases
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project name
Request Body:
{
"name": "new_database",
"type": "ChromaStore",
"config": {
"collection_name": "my_collection",
"distance_function": "cosine"
},
"embedding_strategies": [
{
"name": "embeddings",
"type": "OllamaEmbedder",
"config": {
"model": "nomic-embed-text",
"dimension": 768
}
}
],
"retrieval_strategies": [
{
"name": "basic_search",
"type": "BasicSimilarityStrategy",
"config": { "top_k": 10 },
"default": true
}
]
}
Response (201 Created):
{
"database": {
"name": "new_database",
"type": "ChromaStore",
"is_default": false,
"embedding_strategies": [...],
"retrieval_strategies": [...]
}
}
Example:
curl -X POST http://localhost:8000/v1/projects/my-org/chatbot/rag/databases \
-H "Content-Type: application/json" \
-d '{
"name": "new_database",
"type": "ChromaStore",
"embedding_strategies": [
{"name": "embeddings", "type": "OllamaEmbedder", "config": {"model": "nomic-embed-text"}}
],
"retrieval_strategies": [
{"name": "basic", "type": "BasicSimilarityStrategy", "config": {}, "default": true}
]
}'
Update Database
Update a RAG database's mutable fields. Note: name and type are immutable.
Endpoint: PATCH /v1/projects/{namespace}/{project}/rag/databases/{database_name}
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project namedatabase_name(path, required): Name of the database
Request Body (all fields optional):
{
"config": {
"distance_function": "euclidean"
},
"embedding_strategies": [...],
"retrieval_strategies": [...],
"default_embedding_strategy": "new_default",
"default_retrieval_strategy": "reranked_search"
}
Response:
{
"name": "main_db",
"type": "ChromaStore",
"config": {...},
"embedding_strategies": [...],
"retrieval_strategies": [...],
"default_embedding_strategy": "new_default",
"default_retrieval_strategy": "reranked_search",
"dependent_datasets": []
}
Example - Add a reranking strategy:
curl -X PATCH http://localhost:8000/v1/projects/my-org/chatbot/rag/databases/main_db \
-H "Content-Type: application/json" \
-d '{
"retrieval_strategies": [
{"name": "basic_search", "type": "BasicSimilarityStrategy", "config": {"top_k": 10}},
{"name": "reranked_search", "type": "CrossEncoderRerankedStrategy", "config": {"model_name": "reranker", "initial_k": 30}}
],
"default_retrieval_strategy": "reranked_search"
}'
Delete Database
Delete a RAG database from the project. Fails if any datasets depend on this database.
Endpoint: DELETE /v1/projects/{namespace}/{project}/rag/databases/{database_name}
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project namedatabase_name(path, required): Name of the databasedelete_collection(query, optional): Whether to delete the underlying vector store collection. Set tofalseto only remove from config. Default:true
Response (200 OK):
{
"message": "Database 'old_db' deleted successfully",
"database": {
"name": "old_db",
"type": "ChromaStore",
...
},
"collection_deleted": true
}
Error Response (409 Conflict - has dependent datasets):
{
"detail": "Cannot delete database 'main_db': 2 dataset(s) depend on it. Delete or reassign these datasets first: ['dataset1', 'dataset2']"
}
Example:
# Delete database and its collection
curl -X DELETE http://localhost:8000/v1/projects/my-org/chatbot/rag/databases/old_db
# Only remove from config, keep the vector store data
curl -X DELETE "http://localhost:8000/v1/projects/my-org/chatbot/rag/databases/old_db?delete_collection=false"
Check RAG Health
Get health status of the RAG system and databases.
Endpoint: GET /v1/projects/{namespace}/{project}/rag/health
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project namedatabase(query, optional): Specific database to check (uses default if not specified)
Response:
{
"status": "healthy",
"database": "main_db",
"components": {
"vector_store": {
"name": "vector_store",
"status": "healthy",
"latency": 15.2,
"message": "Vector store operational"
},
"embeddings": {
"name": "embeddings",
"status": "healthy",
"latency": 8.5,
"message": "Embedding service operational"
}
},
"last_check": "2024-01-15T10:30:00Z",
"issues": null
}
Response Fields:
status: Overall health status (healthy,degraded,unhealthy)database: Database that was checkedcomponents: Individual component health checkslast_check: Timestamp of the health checkissues: Array of issues if any problems detected
Component Health:
name: Component identifierstatus: Component status (healthy,degraded,unhealthy)latency: Response time in millisecondsmessage: Optional status message
Example:
curl http://localhost:8000/v1/projects/my-org/chatbot/rag/health
Example (Specific database):
curl "http://localhost:8000/v1/projects/my-org/chatbot/rag/health?database=main_db"
Tasks API
Get Task Status
Get the status of an asynchronous task.
Endpoint: GET /v1/projects/{namespace}/{project}/tasks/{task_id}
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project nametask_id(path, required): Task ID returned from async operations
Response:
{
"task_id": "task-123-abc",
"state": "SUCCESS",
"meta": {
"current": 2,
"total": 2
},
"result": {
"processed_files": 2,
"failed_files": 0
},
"error": null,
"traceback": null
}
Task States:
PENDING- Task is queuedSTARTED- Task is runningSUCCESS- Task completed successfullyFAILURE- Task failed with errorRETRY- Task is being retried
Example:
curl http://localhost:8000/v1/projects/my-org/chatbot/tasks/task-123-abc
Cancel Task
Cancel a running task and revert any files that were successfully processed.
Endpoint: DELETE /v1/projects/{namespace}/{project}/tasks/{task_id}
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project nametask_id(path, required): Task ID to cancel
Description:
This endpoint is primarily used for cancelling dataset processing operations. When a task is cancelled:
- All pending Celery tasks are revoked (prevented from starting)
- Running tasks are gracefully stopped (current work finishes)
- The task is marked as cancelled in the backend
- Any files that were successfully processed have their chunks removed from the vector store
Response:
{
"message": "Task cancelled and 3 file(s) reverted",
"task_id": "task-123-abc",
"cancelled": true,
"pending_tasks_cancelled": 5,
"running_tasks_at_cancel": 2,
"files_reverted": 3,
"files_failed_to_revert": 0,
"errors": null,
"already_completed": false,
"already_cancelled": false
}
Response Fields:
message- Human-readable status messagetask_id- The ID of the cancelled taskcancelled- Whether the task was successfully cancelledpending_tasks_cancelled- Number of queued tasks that were stoppedrunning_tasks_at_cancel- Number of tasks that were running when cancelledfiles_reverted- Number of files whose chunks were successfully removedfiles_failed_to_revert- Number of files that failed to clean uperrors- Array of cleanup errors (if any)already_completed- True if task had already completed before cancellationalready_cancelled- True if task was already cancelled
Edge Cases:
Task Already Completed:
{
"message": "Task already success",
"task_id": "task-123-abc",
"cancelled": false,
"already_completed": true,
...
}
Task Already Cancelled:
{
"message": "Task already cancelled",
"task_id": "task-123-abc",
"cancelled": true,
"already_cancelled": true,
"files_reverted": 3,
...
}
Cleanup Failures:
{
"message": "Task cancelled with cleanup issues: 3 reverted, 1 failed",
"task_id": "task-123-abc",
"cancelled": true,
"files_reverted": 3,
"files_failed_to_revert": 1,
"errors": [
{
"file_hash": "abc123def456",
"error": "Vector store connection timeout"
}
],
...
}
Example:
# Cancel a running dataset processing task
curl -X DELETE http://localhost:8000/v1/projects/my-org/chatbot/tasks/task-123-abc
HTTP Status Codes:
200 OK- Task cancellation succeeded (or task already completed/cancelled)404 Not Found- Task not found or not a cancellable task type500 Internal Server Error- Server error during cancellation
Notes:
- Only group tasks (dataset processing) can be cancelled
- Security: Tasks can only be cancelled by the namespace/project they belong to
- Cancellation is idempotent (safe to call multiple times)
- Cleanup failures don't prevent cancellation from succeeding
- Successfully processed files are automatically reverted
- Manual cleanup is available via
POST /v1/projects/{namespace}/{project}/datasets/{dataset}/cleanup/{file_hash}if automatic cleanup fails
Examples API
List Examples
List all available example projects.
Endpoint: GET /v1/examples
Response:
{
"examples": [
{
"id": "fda_rag",
"slug": "fda_rag",
"title": "FDA RAG Example",
"description": "Example using FDA warning letters",
"primaryModel": "llama3.2:3b",
"tags": ["rag", "healthcare"],
"dataset_count": 1,
"data_size_bytes": 2097152,
"data_size_human": "2.0MB",
"project_size_bytes": 4096,
"project_size_human": "4.0KB",
"updated_at": "2024-01-15T10:30:00"
}
]
}
Example:
curl http://localhost:8000/v1/examples
Import Example as Project
Import an example as a new project.
Endpoint: POST /v1/examples/{example_id}/import-project
Parameters:
example_id(path, required): Example ID to import
Request Body:
{
"namespace": "my-org",
"name": "my-fda-project",
"process": true
}
Response:
{
"project": "my-fda-project",
"namespace": "my-org",
"datasets": ["fda_letters"],
"task_ids": ["task-123-abc"]
}
Example:
curl -X POST http://localhost:8000/v1/examples/fda_rag/import-project \
-H "Content-Type: application/json" \
-d '{
"namespace": "my-org",
"name": "my-fda-project",
"process": true
}'
Import Example Data
Import example data into an existing project.
Endpoint: POST /v1/examples/{example_id}/import-data
Parameters:
example_id(path, required): Example ID to import data from
Request Body:
{
"namespace": "my-org",
"project": "my-project",
"include_strategies": true,
"process": true
}
Response:
{
"project": "my-project",
"namespace": "my-org",
"datasets": ["fda_letters"],
"task_ids": ["task-456-def"]
}
Example:
curl -X POST http://localhost:8000/v1/examples/fda_rag/import-data \
-H "Content-Type: application/json" \
-d '{
"namespace": "my-org",
"project": "my-project",
"include_strategies": true,
"process": true
}'
Health API
Overall Health Check
Check overall system health.
Endpoint: GET /health
Response:
{
"status": "healthy",
"services": {
"api": "healthy",
"celery": "healthy",
"redis": "healthy"
}
}
Example:
curl http://localhost:8000/health
Liveness Probe
Simple liveness check for container orchestration.
Endpoint: GET /health/liveness
Response:
{
"status": "alive"
}
Example:
curl http://localhost:8000/health/liveness
System Info
Root Endpoint
Basic hello endpoint.
Endpoint: GET /
Response:
{
"message": "Hello, World!"
}
System Information
Get system version and configuration info.
Endpoint: GET /info
Response:
{
"version": "0.1.0",
"data_directory": "/Users/username/.llamafarm"
}
Example:
curl http://localhost:8000/info
Check for CLI Updates
Check if a newer version of the CLI is available.
Endpoint: GET /v1/system/version-check
Response:
{
"current_version": "0.0.17",
"latest_version": "0.0.18",
"name": "v0.0.18",
"release_notes": "### Features\n- New feature X\n- Improved Y",
"release_url": "https://github.com/llama-farm/llamafarm/releases/tag/v0.0.18",
"published_at": "2024-01-15T10:30:00Z",
"from_cache": false,
"install": {
"mac_linux": "curl -fsSL https://raw.githubusercontent.com/llama-farm/llamafarm/main/install.sh | bash",
"windows": "winget install LlamaFarm.CLI"
}
}
Example:
curl http://localhost:8000/v1/system/version-check
Event Logs API
The Event Logs API provides observability into project operations including inference calls, RAG processing, and other events.
List Event Logs
List event logs for a project with optional filtering.
Endpoint: GET /v1/projects/{namespace}/{project}/event_logs
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project nametype(query, optional): Filter by event type (e.g., "inference", "rag_processing")start_time(query, optional): Filter events after this timestamp (ISO 8601 format)end_time(query, optional): Filter events before this timestamp (ISO 8601 format)limit(query, optional): Maximum number of events to return (1-100, default: 10)offset(query, optional): Number of events to skip for pagination
Response:
{
"total": 42,
"events": [
{
"event_id": "evt_20240115_103000_inference_abc123",
"type": "inference",
"timestamp": "2024-01-15T10:30:00Z",
"summary": {
"model": "llama3.2:3b",
"tokens": 150,
"duration_ms": 1200
}
}
],
"limit": 10,
"offset": 0
}
Example:
# List recent events
curl http://localhost:8000/v1/projects/my-org/chatbot/event_logs
# Filter by type with pagination
curl "http://localhost:8000/v1/projects/my-org/chatbot/event_logs?type=inference&limit=20"
# Filter by time range
curl "http://localhost:8000/v1/projects/my-org/chatbot/event_logs?start_time=2024-01-15T00:00:00Z"
Get Event Details
Get full details of a specific event including all sub-events.
Endpoint: GET /v1/projects/{namespace}/{project}/event_logs/{event_id}
Parameters:
namespace(path, required): Project namespaceproject(path, required): Project nameevent_id(path, required): Event ID
Response:
{
"event_id": "evt_20240115_103000_inference_abc123",
"type": "inference",
"timestamp": "2024-01-15T10:30:00Z",
"data": {
"model": "llama3.2:3b",
"messages": [...],
"response": {...},
"tokens": {
"prompt": 50,
"completion": 100,
"total": 150
},
"duration_ms": 1200
},
"sub_events": [...]
}
Example:
curl http://localhost:8000/v1/projects/my-org/chatbot/event_logs/evt_20240115_103000_inference_abc123
Models Cache API
The Models Cache API allows you to manage locally cached models (primarily HuggingFace models used by Universal Runtime).
List Cached Models
List all models cached on disk.
Endpoint: GET /v1/models
Parameters:
provider(query, optional): Model provider (default: "universal")
Response:
{
"data": [
{
"model_id": "cross-encoder/ms-marco-MiniLM-L-6-v2",
"size_bytes": 90000000,
"size_human": "90MB",
"last_modified": "2024-01-15T10:30:00Z",
"revisions": ["main"]
}
]
}
Example:
curl http://localhost:8000/v1/models
Download/Cache Model
Download and cache a model. Returns a streaming response with progress events.
Endpoint: POST /v1/models/download
Request Body:
{
"provider": "universal",
"model_name": "cross-encoder/ms-marco-MiniLM-L-6-v2"
}
Response: Server-Sent Events stream with progress updates:
data: {"event": "progress", "downloaded": 45000000, "total": 90000000, "percent": 50}
data: {"event": "complete", "model_name": "cross-encoder/ms-marco-MiniLM-L-6-v2"}
Example:
curl -X POST http://localhost:8000/v1/models/download \
-H "Content-Type: application/json" \
-d '{"model_name": "cross-encoder/ms-marco-MiniLM-L-6-v2"}'
Delete Cached Model
Delete a cached model from disk.
Endpoint: DELETE /v1/models/{model_name}
Parameters:
model_name(path, required): The model identifier to deleteprovider(query, optional): Model provider (default: "universal")
Response:
{
"model_name": "cross-encoder/ms-marco-MiniLM-L-6-v2",
"revisions_deleted": 1,
"size_freed": 90000000,
"path": "/Users/username/.cache/huggingface/hub/models--cross-encoder--ms-marco-MiniLM-L-6-v2"
}
Example:
curl -X DELETE "http://localhost:8000/v1/models/cross-encoder/ms-marco-MiniLM-L-6-v2"
Multi-Model Support
As of PR #263, LlamaFarm supports multiple models per project with OpenAI-compatible model field in chat requests.
Configuration
In your llamafarm.yaml:
runtime:
models:
- name: fast-model
provider: ollama
model: llama3.2:3b
- name: smart-model
provider: ollama
model: llama3.2:70b
default_model: fast-model
Using Different Models
The model field in chat completions requests is OpenAI-compatible and allows you to select which configured model to use:
curl -X POST http://localhost:8000/v1/projects/my-org/chatbot/chat/completions \
-H "Content-Type: application/json" \
-d '{
"model": "smart-model",
"messages": [
{"role": "user", "content": "Explain quantum computing"}
]
}'
If model is not specified, the default_model from your configuration is used. This makes LlamaFarm a drop-in replacement for OpenAI's API with the added benefit of model selection.
Get Available Models
curl http://localhost:8000/v1/projects/my-org/chatbot/models
Rate Limiting and Performance
Concurrent Requests
The API handles concurrent requests efficiently:
- Chat sessions are thread-safe with internal locking
- Dataset processing can run asynchronously with Celery
- Multiple chat sessions can be active simultaneously
Session Management
- Sessions expire after 30 minutes of inactivity
- Use
X-No-Sessionheader for stateless requests - Session cleanup happens automatically
Async Processing
For long-running operations (dataset processing):
- POST to the dataset
actionsendpoint ({"action_type":"process"}) to queue a Celery task - Poll the task endpoint to check status
- Retrieve final results when
stateisSUCCESS
MCP (Model Context Protocol) Compatible Endpoints
LlamaFarm's API is compatible with the Model Context Protocol (MCP), allowing AI agents to interact with LlamaFarm programmatically. The following endpoints are tagged with mcp for easy discovery by MCP clients:
MCP-Compatible Operations
Project Management:
GET /v1/projects/{namespace}- List projects (operation ID:projects_list)POST /v1/projects/{namespace}- Create project (operation ID:project_create)GET /v1/projects/{namespace}/{project}- Get project (operation ID:project_get)PUT /v1/projects/{namespace}/{project}- Update project (operation ID:project_update)DELETE /v1/projects/{namespace}/{project}- Delete project (operation ID:project_delete)
Model Management:
GET /v1/projects/{namespace}/{project}/models- List models (operation ID:models_list)
Dataset Operations:
GET /v1/projects/{namespace}/{project}/datasets- List datasets (operation ID:dataset_list)GET /v1/projects/{namespace}/{project}/datasets/strategies- List strategies (operation ID:dataset_strategies_list)POST /v1/projects/{namespace}/{project}/datasets- Create dataset (operation ID:dataset_create)DELETE /v1/projects/{namespace}/{project}/datasets/{dataset}- Delete dataset (operation ID:dataset_delete)POST /v1/projects/{namespace}/{project}/datasets/{dataset}/actions- Dataset actions (operation ID:dataset_actions)POST /v1/projects/{namespace}/{project}/datasets/{dataset}/data- Upload data (operation ID:dataset_data_upload)
RAG Operations:
POST /v1/projects/{namespace}/{project}/rag/query- Query RAG (operation ID:rag_query)POST /v1/projects/{namespace}/{project}/rag/databases- Create database (operation ID:database_create)GET /v1/projects/{namespace}/{project}/rag/databases/{database}- Get database (operation ID:database_get)PATCH /v1/projects/{namespace}/{project}/rag/databases/{database}- Update database (operation ID:database_update)DELETE /v1/projects/{namespace}/{project}/rag/databases/{database}- Delete database (operation ID:database_delete)
Task Management:
GET /v1/projects/{namespace}/{project}/tasks/{task_id}- Get task status (operation ID:task_get)
Using LlamaFarm with MCP Servers
You can configure LlamaFarm projects to expose tools through MCP servers, giving AI agents access to filesystems, databases, APIs, and custom business logic. See the MCP section in the Introduction for configuration examples.
Example: AI Agent with LlamaFarm MCP Tools
# AI agent can use LlamaFarm endpoints as tools
# through MCP protocol
{
"tool": "llamafarm_rag_query",
"arguments": {
"query": "What are the clinical trial requirements?",
"database": "fda_db",
"top_k": 5
}
}
Best Practices
Error Handling
Always check HTTP status codes and handle errors:
response=$(curl -s -w "\n%{http_code}" http://localhost:8000/v1/projects/my-org/chatbot)
http_code=$(echo "$response" | tail -n 1)
body=$(echo "$response" | head -n -1)
if [ "$http_code" -eq 200 ]; then
echo "Success: $body"
else
echo "Error ($http_code): $body"
fi
Using RAG Effectively
- Create datasets first: Upload and process files before querying
- Use appropriate top_k: Start with 5-10 results
- Set score thresholds: Filter low-quality results (e.g., 0.7)
- Test queries: Use the RAG query endpoint to test retrieval before chat
Chat Sessions
- Stateful conversations: Reuse session IDs for context
- Stateless queries: Use
X-No-Sessionfor one-off questions - Clean up: Delete old sessions to free resources
- History access: Use history endpoint to debug conversations
Dataset Processing
- Upload first, process later: Separate ingestion from processing
- Use async for large datasets: Enable async processing for >10 files
- Monitor task status: Poll task endpoint for progress
- Handle duplicates: System automatically skips duplicate files
API Clients
Python Example
import requests
class LlamaFarmClient:
def __init__(self, base_url="http://localhost:8000"):
self.base_url = base_url
self.session = requests.Session()
def chat(self, namespace, project, message, session_id=None):
url = f"{self.base_url}/v1/projects/{namespace}/{project}/chat/completions"
headers = {}
if session_id:
headers["X-Session-ID"] = session_id
response = self.session.post(
url,
headers=headers,
json={
"messages": [{"role": "user", "content": message}]
}
)
response.raise_for_status()
return response.json()
def query_rag(self, namespace, project, query, database=None, top_k=5):
url = f"{self.base_url}/v1/projects/{namespace}/{project}/rag/query"
response = self.session.post(
url,
json={
"query": query,
"database": database,
"top_k": top_k
}
)
response.raise_for_status()
return response.json()
# Usage
client = LlamaFarmClient()
result = client.chat("my-org", "chatbot", "Hello!")
print(result["choices"][0]["message"]["content"])
JavaScript/TypeScript Example
interface ChatMessage {
role: "system" | "user" | "assistant";
content: string;
}
interface ChatRequest {
messages: ChatMessage[];
stream?: boolean;
rag_enabled?: boolean;
database?: string;
}
class LlamaFarmClient {
constructor(private baseUrl: string = "http://localhost:8000") {}
async chat(
namespace: string,
project: string,
messages: ChatMessage[],
sessionId?: string
): Promise<any> {
const headers: Record<string, string> = {
"Content-Type": "application/json",
};
if (sessionId) {
headers["X-Session-ID"] = sessionId;
}
const response = await fetch(
`${this.baseUrl}/v1/projects/${namespace}/${project}/chat/completions`,
{
method: "POST",
headers,
body: JSON.stringify({ messages }),
}
);
if (!response.ok) {
throw new Error(`API error: ${response.status}`);
}
return response.json();
}
async queryRAG(
namespace: string,
project: string,
query: string,
database?: string,
topK: number = 5
): Promise<any> {
const response = await fetch(
`${this.baseUrl}/v1/projects/${namespace}/${project}/rag/query`,
{
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
query,
database,
top_k: topK,
}),
}
);
if (!response.ok) {
throw new Error(`API error: ${response.status}`);
}
return response.json();
}
}
// Usage
const client = new LlamaFarmClient();
const result = await client.chat("my-org", "chatbot", [
{ role: "user", content: "Hello!" },
]);
console.log(result.choices[0].message.content);
Troubleshooting
Common Issues
Problem: 404 Not Found when accessing project
- Solution: Verify namespace and project name are correct. List projects to confirm.
Problem: Chat returns empty or error
- Solution: Check that the model is configured correctly and Ollama is running.
Problem: RAG query returns no results
- Solution: Ensure dataset is processed and database exists. Check RAG health endpoint.
Problem: Dataset processing stuck
- Solution: Check Celery worker status. Use async processing and poll task endpoint.
Problem: Session not persisting
- Solution: Ensure you're passing
X-Session-IDheader and not usingX-No-Session.
Debugging Tips
- Check logs: Server logs are written to stdout
- Verify configuration: Use
GET /v1/projects/{namespace}/{project}to inspect config - Test health: Use
/healthendpoint to verify services are running - Inspect tasks: For async operations, poll task endpoint for detailed error info
- Use curl verbose: Add
-vflag to curl for detailed request/response info
Next Steps
- Learn about Configuration
- Explore RAG concepts
- Review Examples
- Check Troubleshooting