invalid_version

The message text is shown in the example below.

⚠️
Preview — this feature is being built; the design below is the spec. Not in the public error catalog: planned for preview endpoints.
HTTP status400
typeinvalid_request_error
Retry?No, not unchanged
StatusPreview
Extra fieldsnone

When it happens

syntic-version is not a published version.

Example

{
  "error": {
    "type": "invalid_request_error",
    "code": "invalid_version",
    "message": "Unknown API version.",
    "param": null,
    "request_id": "req_6f1c2a9e0b7d4c3a8e5f1b2d"
  }
}

How to fix it

  • Use a date listed on Versioning, or drop the header to use your key’s pinned version.

Detect it in code

err = resp.json().get("error", {})
if resp.status_code == 400 and err.get("code") == "invalid_version":
    log.warning("%s (%s)", err["message"], err["request_id"])  # fix the request; do not retry unchanged
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