API_KEY_INVALID

The API key is unknown, revoked, or from another environment.

HTTP status	401
Group	Platform
Retryable	No — sending it again changes nothing

What happened

Keys are environment-bound: a test key never works on mainnet and the reverse.

What to do

Use a key issued for this host, or create a new one in the dashboard.

The problem document

Every error is application/problem+json (RFC 9457) with the same shape:

{
  "type": "https://docs.co-relayer.com/errors/api-key-invalid",
  "title": "The API key is unknown, revoked, or from another environment.",
  "status": 401,
  "detail": "A sentence about this specific occurrence.",
  "instance": "req_01JB…",
  "code": "API_KEY_INVALID",
  "retryable": false,
  "hint": "Use a key issued for this host, or create a new one in the dashboard."
}

See the error model for what each member means and how to handle unknown codes.