availity

Availity Claim Attachments API

The Availity Claim Attachments API enables electronic submission of supporting documentation alongside healthcare claims. REST APIs support structured and unstructured attachment types for additional clinical information required by payers during claims adjudication.

GitHub OpenAPI

Documentation

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Documentation
https://developer.availity.com/blog/2025/2/28/claim-attachment-api
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GettingStarted
https://developer.availity.com/partner/gettingstarted

Specifications

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OpenAPI
https://raw.githubusercontent.com/api-evangelist/availity/refs/heads/main/openapi/availity-claim-attachments-openapi.yml