> ## Documentation Index
> Fetch the complete documentation index at: https://apidocs.scripe.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Invalid client metadata

# `invalid_client_metadata`

| HTTP | When                                                                             |
| ---- | -------------------------------------------------------------------------------- |
| 400  | The Dynamic Client Registration body is invalid or violates registration policy. |

Common causes:

* `token_endpoint_auth_method` other than `"none"` — v1 supports
  public clients only.
* A `grant_types` / `response_types` combination outside
  `authorization_code` + `refresh_token` / `code`.
* Malformed `client_name`, `client_uri`, or `logo_uri`.

The `message` names the offending field. See
[OAuth §2](../oauth.md#2-dynamic-client-registration-rfc-7591).