# FHIR Specimen List (HL7 R4 Test Server)

> FHIR Specimen 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 Specimen resources from the public HL7 FHIR test server, filtered by a query parameter.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/fhir-specimen-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-specimen-list-hl7-r4-test-server-9c0116d7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5aWHFFjlKrKYlzaIb6wbL

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-specimen-list-hl7-r4-test-server-9c0116d7 -d '<json body>'
```

Example prompt: Can you pull me a page of FHIR R4 Specimen resources from the public HL7 test server matching the query 'blood'?

## When to prefer this

Use this endpoint when you need to explore or prototype with FHIR R4 Specimen data and don't have access to a production FHIR server. Ideal for testing FHIR client logic, retrieving sample specimen records, or building healthcare integrations that require specimen resource examples.

## Known failure modes

- Missing or empty q parameter may return empty results or an error
- HL7 public test server downtime causes 502/503 responses
- Malformed query string may yield zero results
- Rate limiting or payment failure results in 402 response
- Non-existent specimen types return empty bundle

## How this service works

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

## Output

A JSON-formatted page of FHIR R4 Specimen resources matching the query, as returned by the public HL7 FHIR test server. Each entry conforms to the FHIR Specimen resource schema including identifiers, type, subject, collection details, and status.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fhir-specimen-list-hl7-r4-test-server-9c0116d7/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)