Documentation Index
Fetch the complete documentation index at: https://developers.funos.es/llms.txt
Use this file to discover all available pages before exploring further.
How to authenticate
The API uses Bearer token authentication in theAuthorization header. Include your API Key in every request:
Authenticated request example
Authentication errors
| Code | Message | Cause |
|---|---|---|
401 | UNAUTHORIZED | API Key missing or invalid |
401 | KEY_REVOKED | The API Key has been deactivated |
429 | RATE_LIMIT_EXCEEDED | 100 requests/hour limit exceeded |
401 Response
429 Response
Usage limits (Rate Limiting)
| Plan | Limit | Window |
|---|---|---|
| Beta | 100 requests | Per hour, per API Key |
Retry-After header indicates how many seconds to wait after receiving a 429.
Security
- API Keys are stored as SHA-256 hashes. Funos never stores the key in plain text.
- If you believe your API Key has been compromised, contact api@funos.es immediately.
- Each API Key has an origin identifier (
name,origin) for full traceability in logs.
Request an API Key
The API is in private beta. To request access:- Write to api@funos.es with subject:
API Key Request - Funos AI Partner - Briefly describe your use case (GPT Action, MCP, web application…)
- You will receive your API Key within 24–48 hours
If you are setting up a GPT Action in ChatGPT, the API Key is entered in GPT Builder → Configure → Actions → Authentication → API Key → Bearer.

