unsupported_media_type (415)

← Error reference

unsupported_media_type

HTTP status: 415

Retryable: No — retrying without changes will fail the same way.

The request `Content-Type` is not accepted for this endpoint.

When it fires

The endpoint expects `application/json` but received another content type, or vice versa for upload endpoints.

How to handle it

Set `Content-Type: application/json` for JSON endpoints. The reference page for each route lists the accepted media types.

Example response

{
  "error": {
    "type": "https://docs-dev.autohost-dev.uk/api/errors/unsupported_media_type",
    "code": "unsupported_media_type",
    "message": "Expected Content-Type: application/json",
    "request_id": "req_01HEXAMPLE0000000000000000",
    "doc_url": "https://docs-dev.autohost-dev.uk/api/errors/unsupported_media_type"
  }
}