# FHIR Encounter List – HL7 R4 Test Server

> FHIR Encounter List – HL7 R4 Test Server is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns a paginated list of FHIR R4 Encounter (visit) resources from the public HL7 FHIR test server, filtered by a query parameter.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/fhir-encounter-list
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fhir-encounter-list-hl7-r4-test-server-2b3db407
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SSpYN15UCG1UMyWjHI4xx

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability fhir-encounter-list-hl7-r4-test-server-2b3db407 -d '<json body>'
```

Example prompt: Can you pull me a page of FHIR R4 Encounter records from the public HL7 test server — search for encounters matching 'emergency' and return them as JSON?

## When to prefer this

Use this endpoint when you need to retrieve or paginate through FHIR R4 Encounter resources for development, testing, or demonstration purposes — particularly when working with HL7 FHIR healthcare interoperability standards and needing real, structured encounter data in JSON without setting up your own FHIR server.

## Known failure modes

- Missing or empty 'q' parameter may return no results or an error
- Public test server downtime may cause 503 or timeout responses
- Malformed query strings may return 400 Bad Request
- Rate limiting may apply if the public FHIR server is overloaded
- Response may contain limited or synthetic test data not representative of production FHIR data

## How this service works

Return a page of {q} FHIR Encounter (visit) resources from the public HL7 FHIR R4 test server. Query: ?q= Returns JSON.

## Output

A JSON-formatted page of FHIR R4 Encounter resources representing patient visits, including fields such as encounter status, class, type, subject reference, period, and service provider — sourced from the public HL7 FHIR R4 test server.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fhir-encounter-list-hl7-r4-test-server-2b3db407/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from clonecho.builda.company](https://www.zero.xyz/host/clonecho.builda.company/llms.txt)