# FHIR Questionnaire List

> FHIR Questionnaire List is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Lists clinical questionnaires (FHIR R4 Questionnaire resources) from the public HL7 FHIR R4 test server, returning a specified number of entries as a FHIR Bundle in JSON.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/fhir-questionnaire-list
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fhir-questionnaire-list-6bc4595e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wyzig1_TE79AqZW5W_l7A

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-questionnaire-list-6bc4595e -d '<json body>'
```

Example prompt: Can you pull a list of 10 clinical questionnaires from the public HL7 FHIR R4 test server and give me the results as a FHIR Bundle?

## When to prefer this

Use this endpoint when you need to programmatically browse or enumerate clinical Questionnaire resources from an HL7 FHIR R4-compliant test server, especially when prototyping healthcare interoperability workflows, testing FHIR client integrations, or exploring questionnaire data structures without setting up your own FHIR server.

## Known failure modes

- Missing or invalid q parameter may return an empty bundle or default count
- FHIR test server downtime may cause request failures or timeouts
- Non-numeric q value may cause a 400 Bad Request or unexpected response
- Requesting more questionnaires than available on the server may return fewer entries than requested

## How this service works

List clinical questionnaires (Questionnaire 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 JSON object containing the requested number of Questionnaire resources from the public HL7 FHIR R4 test server, including questionnaire metadata such as titles, statuses, and item definitions.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fhir-questionnaire-list-6bc4595e/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)