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LINCS L1000 (Clue.io) API Reference
Overview
The LINCS L1000 dataset is accessible via the Connectivity Map (CMap) API at clue.io.
Base URL
https://api.clue.io/api
Authentication
- API key required (free registration at clue.io)
- Pass via header:
user_key: YOUR_API_KEY
Key Endpoints
| Endpoint | Description |
|---|---|
GET /perts |
Query perturbagens (compounds, gene knockdowns, overexpression) |
GET /genes |
Query genes (L1000 landmark + inferred) |
GET /cells |
Query cell lines used in L1000 |
GET /sigs |
Query connectivity signatures |
GET /profiles |
Access expression profiles (level 5 z-scores) |
GET /pcls |
Perturbagen classes |
Query Parameters
All endpoints support a filter parameter using Loopback-style JSON:
where— filter conditionsfields— select specific fieldslimit/skip— pagination
Example Calls
# Search for a compound perturbagen by name
curl -H "user_key: YOUR_API_KEY" \
"https://api.clue.io/api/perts?filter={\"where\":{\"pert_iname\":\"vorinostat\"}}"
# Get landmark genes
curl -H "user_key: YOUR_API_KEY" \
"https://api.clue.io/api/genes?filter={\"where\":{\"is_lm\":true},\"limit\":10}"
# Query cell lines
curl -H "user_key: YOUR_API_KEY" \
"https://api.clue.io/api/cells?filter={\"where\":{\"cell_iname\":\"MCF7\"}}"
# Get connectivity signatures for a compound
curl -H "user_key: YOUR_API_KEY" \
"https://api.clue.io/api/sigs?filter={\"where\":{\"pert_iname\":\"vorinostat\"},\"limit\":5}"
Response Format
JSON. Example (perturbagen):
[
{
"pert_id": "BRD-K81418486",
"pert_iname": "vorinostat",
"pert_type": "trt_cp",
"moa": ["HDAC inhibitor"],
"target": ["HDAC1","HDAC2","HDAC3","HDAC6"]
}
]
Rate Limits
- Free tier: moderate rate limiting (exact numbers not publicly documented)
- Bulk data downloads available separately via clue.io data portal