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GET
/
v1
/
uploads
/
{uploadId}
// GET https://api.signatureapi.com/v1/uploads/{uploadId}
// X-API-Key: key_test_...

// HTTP Status 200

{
  "id": "upl_1sAAaVfabdt0esVjmSTmLA",
  "retention": "temporary",
  "url": "https://api.signatureapi.com/v1/uploads/upl_1sAAaVfabdt0esVjmSTmLA",
  "format": "pdf",
  "sha_256": "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef",
  "size": 102400,
  "created_at": "2025-12-30T12:00:00.000Z",
  "expires_at": "2025-12-31T12:00:00.000Z"
}

Documentation Index

Fetch the complete documentation index at: https://signatureapi-daf4ee54.mintlify.app/llms.txt

Use this file to discover all available pages before exploring further.

Retrieve the metadata for an existing upload. The response includes the file format, size, SHA-256 hash, retention type, and creation time.
This endpoint returns upload metadata only. You cannot download the file content through the API.
The Retrieve Upload endpoint replaces the Get File endpoint. The File resource is soft-deprecated but remains available for backward compatibility.

​
Path Parameters

​
uploadId
string
required
The unique identifier of the upload.

​
Returns

Returns a 200 OK status code and an upload object on success, or an error otherwise. 
// GET https://api.signatureapi.com/v1/uploads/{uploadId}
// X-API-Key: key_test_...

// HTTP Status 200

{
  "id": "upl_1sAAaVfabdt0esVjmSTmLA",
  "retention": "temporary",
  "url": "https://api.signatureapi.com/v1/uploads/upl_1sAAaVfabdt0esVjmSTmLA",
  "format": "pdf",
  "sha_256": "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef",
  "size": 102400,
  "created_at": "2025-12-30T12:00:00.000Z",
  "expires_at": "2025-12-31T12:00:00.000Z"
}