# Get an attachment by id

> GET /attachments/{attachment_id}

Source: https://docs.trykintsugi.com/reference/2026-07-21/get-an-attachment-by-id

GET /attachments/{attachment_id}

Get an attachment by id

Fetch a single attachment's metadata by id. Searched across every organization your credential owns, so no selector is needed for a known id. Returns 404 if the attachment does not exist or belongs to an organization your credential cannot access, so the API never confirms an id exists.

Category: Attachments

Path parameters:
attachment_id (string, required) - The unique identifier of the attachment.

Response fields:
id (string, required) - Kintsugi's unique identifier for the attachment.
fileName (string, required) - Name the file was uploaded under.
contentType (string, required) - Media type of the file.
size (integer, required) - Size of the file in bytes.
relatedEntity (RelatedEntityRef, required) - The entity this attachment is held against.
  id (string, required) - Kintsugi's unique identifier for the related entity.
  type (string, required) - Kind of entity the attachment is held against.
uploadedAt (string, required) - When the attachment was uploaded, as an RFC-3339 UTC timestamp.

Response statuses: 200, 400, 401, 403, 404, 409, 422

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