Uploads a single file as a multipart/form-data request and returns its attachment id. Use the returned id in attachmentIds arrays on email-template, sequence-step, and inbox-message endpoints to attach the file to outbound communications.
Documentation Index
Fetch the complete documentation index at: https://docs.reply.io/llms.txt
Use this file to discover all available pages before exploring further.
Authenticate every request with a Bearer token. Pass your Reply API key in the
Authorization header:
Authorization: Bearer <your-api-key>
Get your API key from the Reply dashboard: Settings → API Key.
File to upload. Must be non-empty.
File uploaded
Uploaded file attachment usable across email templates, sequence steps, and direct emails.