invalid_request

HTTP 400 · application/problem+json · The request body or parameters failed validation.

What causes it

• A required field is missing, the wrong type, or fails validation (the errors array lists each offending field as a JSON Pointer).
• The request body is not valid JSON, or a query/path parameter is malformed.

How to fix it

• Read the errors array — each entry carries a pointer (e.g. /title), a field-level code, and a message.
• Validate against the OpenAPI 3.1 spec (/docs/api/openapi.json); it describes every field's type and constraints.

Example response body

{
  "type": "https://getbioflow.com/docs/api/errors/invalid-request",
  "title": "The request body or parameters failed validation",
  "status": 400,
  "detail": "The request body failed validation.",
  "instance": "urn:request:req_01abc",
  "code": "invalid_request",
  "request_id": "req_01abc"
}

Branch on the stable code field — title and detail are for humans and may change. type (https://getbioflow.com/docs/api/errors/invalid-request) always resolves to this page. Quote request_id when contacting support. Full code registry on the API docs hub; the complete surface is in the interactive reference.