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description: Developer documentation for the CMS-0057-F APIs delivered with Aidbox — Patient Access, Provider Directory, Provider Access, and Payer-to-Payer.
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# Developer Docs

Developer-facing reference for the CMS-0057-F API suite. Each API has its own page covering the base URL, the authentication flow, supported FHIR operations, search parameters, and request/response examples.

* [Provider Access API](provider-access-api/README.md) — backend services authentication, member matching, bulk data export.