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GET
/
messages
/
attachments
/
{guid}
Fetch an attachment by GUID
curl --request GET \
  --url https://api.arnio.co/api/v1/messages/attachments/{guid} \
  --header 'X-API-Key: <api-key>'
"<binary content>"
Fetch a media attachment by its GUID. You can optionally specify the quality (best, medium, low) and the phoneNumber (required if the server is not preloaded).

​
Parameters

NameInTypeRequiredDescription
guidpathstring✅The GUID of the attachment to fetch
qualityquerystring❌Quality of the attachment (best by default)
phoneNumberquerystring❌E.164 phone number of the line (+15551234567)

​
Responses

  • 200: Attachment fetched successfully (binary content)
  • 400: Missing phoneNumber or server not found
  • 500: Failed to fetch attachment

Authorizations

​
X-API-Key
string
header
required

Provide your generated API Key.

Path Parameters

​
guid
string
required

The GUID of the attachment

Query Parameters

​
quality
string
default:best

Optional. Quality of the attachment (best, medium, low)

​
phoneNumber
string

Phone number in E.164 format (e.g., +15551234567). Required if server is not preloaded.

Response

Attachment fetched successfully