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This page is the resolution target of the RFC 9457 type URI on every invalid_request problem body: https://docs.get-exo.com/errors/invalid_request. HTTP status: 400 Bad Request.

Why it happens

This is the default code for a 400 that a route did not name more specifically. The common named ones are invalid_cursor on a tampered pagination cursor and pagination_unsupported on a recall view that is not a list. A 400 means Exo could not act on the request as sent. A body that parsed but failed validation is 422 validation_error instead.

How to fix it

  • Check the request line and headers before the body: a 400 here usually means a query parameter or a header, not a field.
  • Quote the requestId from the response if you need to ask about a specific call.