# FHIR Claims API: Patient-Authorized ExplanationOfBenefit Records

Flexpa returns available claims from supported health plans as FHIR R4 ExplanationOfBenefit resources after patient authorization through Flexpa Consent. Related resources can include Coverage, Patient, Practitioner, and Organization. Query them through the Flexpa Records API with a patient access token.

How it works: Patient authorization -> Available payer claims -> FHIR ExplanationOfBenefit. Flexpa returns available records from supported connected plans.

## Request

### Search claims

```bash
curl https://api.flexpa.com/fhir/ExplanationOfBenefit \
  -H "Authorization: Bearer $ACCESS_TOKEN"
```

## Resources

| Resource | What it holds |
|---|---|
| ExplanationOfBenefit | Adjudicated claims, payments, and member cost-sharing |
| Coverage | Plan, member ID, coverage period |
| Patient | Demographics |
| Practitioner, Organization | Providers on the claims |

## Questions

**Is there an API for health insurance claims?** Yes. Flexpa returns patient-consented claims from health plans as FHIR R4 ExplanationOfBenefit resources through one API.

**Which implementation guide do claims follow?** CARIN Consumer Directed Payer Data Exchange (CARIN Blue Button) is a FHIR R4 implementation guide for payer claims exchange. Source data and supported profiles vary; inspect the resources returned by each connected plan.

## More

- [ExplanationOfBenefit (docs)](https://www.flexpa.com/docs/fhir/explanation-of-benefit)
- [Records API (docs)](https://www.flexpa.com/docs/records)
- [Quickstart (docs)](https://www.flexpa.com/docs/guides/quickstart)

Last updated 2026-11-11.