External Parties

Create external party

Create an external party to transact with over Direct

post/external-parties

Headers

Idempotency-Keystring required

Unique key for safely retrying a request without creating duplicates.

X-Instance-IDstring nullable

Caller-chosen identifier for the agent run, session, or conversation, required when an agent moves money.

Request body

Response

Successful Response

Changes

Changed in 7 of the 50 revisions of this API.418

Sep 11, 2026226131258c121See the full diff
- ○
  added the required property // to the response with the status
  response-required-property-added
Sep 9, 2026ccc52bdd2ca741See the full diff
- ▲
  the request property /// became required
  request-property-became-required
- ▲
  the request property /// became required
  request-property-became-required
- ▲
  the request property /// became required
  request-property-became-required
- ▲
  added the pattern ^[A-Za-z]{2}$ to the request property ///
  request-property-pattern-added
- ○
  the /// request property's minLength was decreased from 2 to 0
  request-property-min-length-decreased
Sep 2, 2026c7c12da5915f12See the full diff
- ○
  added the optional property /// to the response with the status
  response-optional-property-added
- ○
  added the optional property /// to the response with the status
  response-optional-property-added
- ○
  added the optional property /// to the response with the status
  response-optional-property-added
- ○
  added the optional property /// to the response with the status
  response-optional-property-added
- ○
  added the optional property /// to the response with the status
  response-optional-property-added
- ○
  added the optional property /// to the response with the status
  response-optional-property-added
- ○
  added the optional property /// to the response with the status
  response-optional-property-added
- ○
  added the optional property /// to the response with the status
  response-optional-property-added
- ○
  added the optional property /// to the response with the status
  response-optional-property-added
- ○
  added the optional property /// to the response with the status
  response-optional-property-added
- ○
  added the optional property /// to the response with the status
  response-optional-property-added
- ○
  added the optional property /// to the response with the status
  response-optional-property-added
Aug 27, 2026359d267dca881See the full diff
- ○
  deleted the header request parameter X-Agent-ID with deprecation
  request-parameter-removed-with-deprecation
Aug 23, 2026b1ad79e918ac1See the full diff
- ○
  header request parameter X-Agent-ID was deprecated
  request-parameter-deprecated
Aug 22, 2026efd3da4713981See the full diff
- ○
  added the new optional request property //
  new-optional-request-property
Aug 19, 2026c2c65e0527111See the full diff
- ○
  endpoint added
  endpoint-added

Full history