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GET

Path Parameters

string
required
The attachment ID returned by Upload attachment or found in a message’s metadata.attachment_ids array.

Response

object
Attachment metadata. The raw file content (content_base64) is not returned by this endpoint for security and performance reasons.

Download URL

To get a temporary signed download URL for the attachment content, call GET /v1/attachments/:id/url with an optional expires_in query parameter (seconds, default 3600):
cURL
Response:
Last modified on March 19, 2026