# About the Medsender API

The Medsender API is a HIPAA-compliant interface for automating medical document workflows. It gives development teams documented building blocks for moving documents through fax, secure email links, organized client records, callbacks, and AI document processing.

## What teams can build

Integrations can send faxes, inspect sent-fax delivery status, list received faxes, and download received documents. Teams can also work with fax numbers provisioned for their Medsender account and use logical clients to group fax numbers and organize inbound faxes. For document delivery outside fax, the API can send secure, time-limited email links so recipients can access documents safely.

For asynchronous workflows, Medsender sends webhook callbacks when supported operations complete, including sent faxes, received faxes, emails, and AI documents. AI document endpoints accept uploads and return extracted fields and classification results when processing completes. Together, these capabilities let an integration coordinate document intake, delivery, status tracking, and downstream processing.

## Start with the documentation

API calls use a Bearer API key, with separate test and live key environments. Callback requests use signatures instead of API keys. Read the authentication and callback guides before connecting a production workflow, then use the endpoint-specific pages for request formats, response fields, and examples.

[Explore the API documentation](/docs)