invalid_signature

End-user signature did not verify · HTTP 401

What causes this

The request carried X-Ngentix-Signature but the HMAC did not match. Usually the signed string was assembled in the wrong order, or the timestamp is outside the accepted window.

How to fix it

Sign {ts}.{method}.{connector}.{path}.{consumer} with your organization's signing secret, and send the same ts in X-Ngentix-Timestamp.

What the response looks like

{
  "error": {
    "code": "invalid_signature",
    "status": 401,
    "message": "…",
    "hint": "…",
    "request_id": "req_…",
    "docs_url": "https://cloud.ngentix.ai/docs/errors/invalid_signature"
  }
}

Quote the request_id if you contact support — it identifies your exact request in our logs.