# Clinical Trial Record Search for Agent Builders

> Clinical Trial Record Search for Agent Builders is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).

Searches live public web pages for clinical trial registry records and returns source links and snippets, tailored for AI agent builders.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/pulse-web-clinical-trial-record-search-agent-builders?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/clinical-trial-record-search-for-agent-builders-23c20d31
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Z-P1_lqHytm_Kga7yGOBf

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 clinical-trial-record-search-for-agent-builders-23c20d31 -d '<json body>'
```

Example prompt: Search live public web pages for clinical trial records about mRNA vaccine safety trials — give me up to 5 source links and snippets from official registries.

## When to prefer this

Choose this endpoint when an AI agent needs to search live public web content specifically about clinical trial registry records, especially in agent-builder pipelines where up-to-date source links and snippets are needed. Prefer it over static databases when freshness and public web coverage matter, and when the use case is clinical research lookup rather than structured trial data ingestion.

## Known failure modes

- No results found for a very niche or poorly phrased query
- Rate limit or payment failure if USDC balance is insufficient
- Stale or unavailable web pages returning empty snippets
- max_results value outside 1–10 range causing validation error
- Query too generic returning irrelevant or off-topic snippets

## How this service works

Clinical trial record search for Agent builders: Search live public web pages about clinical trial record search, focused on agent builders. Returns source links and snippets, not endorsements.

## Output

Returns a list of up to 10 source links and text snippets from live public web pages about clinical trial registries, focused on the queried topic. Results are informational references, not endorsements, and include URLs to official or public registry sources.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "default": "clinical trial registry record status official sources Agent builders",
   "description": "Optional focused query."
  },
  "max_results": {
   "type": "integer",
   "default": 5,
   "maximum": 10,
   "minimum": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/clinical-trial-record-search-for-agent-builders-23c20d31/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)