# FHIR R4 Appointment List

> FHIR R4 Appointment List 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).

Lists FHIR R4 Appointment resources from a public HL7 FHIR test server, returning a specified number of entries as a FHIR Bundle in JSON format.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/fhir-appointment-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-r4-appointment-list-021092f5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gAiG6aH65RyTVN_wudhF5

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-r4-appointment-list-021092f5 -d '<json body>'
```

Example prompt: Can you pull 10 appointment records from the public FHIR R4 test server and give me the results as a FHIR Bundle?

## When to prefer this

Use this endpoint when you need sample or test FHIR R4 Appointment data for development, testing, or demonstration purposes, and you want a real HL7-compliant JSON Bundle response without setting up your own FHIR server.

## Known failure modes

- Invalid or missing q parameter returns empty or error Bundle
- q value too large may cause slow response or truncated results
- Server unavailable returns HTTP 5xx error
- Non-integer q parameter may cause malformed request

## How this service works

List appointments (Appointment resources) from the public HL7 FHIR R4 test server, returning {q} entries as a FHIR Bundle. Query: ?q= Returns JSON.

## Output

A FHIR R4 Bundle resource in JSON format containing the requested number of Appointment resources, each with fields such as status, participant, start/end time, and appointment type.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fhir-r4-appointment-list-021092f5/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)