availity

Availity Eligibility & Benefits API

The Availity Eligibility & Benefits API supports the ASC X12N 270 and 271 transactions, enabling real-time verification of member coverage, co-pays, deductibles, and benefits information. REST APIs connect provider systems to every major health plan nationwide for eligibility checks.

GitHub OpenAPI

Documentation

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Documentation
https://developer.availity.com/partner/documentation
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GettingStarted
https://developer.availity.com/partner/gettingstarted
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Documentation
https://developer.availity.com/blog/2025/3/4/ebvalue-add-api

Specifications

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

Schemas & Data

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JSONSchema
https://raw.githubusercontent.com/api-evangelist/availity/refs/heads/main/json-schema/availity-eligibility-schema.json