# Clinical Trial Search

> Clinical Trial Search is a paid API for AI agents from api.agentwonderland.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Searches global clinical trial records to find active, recruiting, or completed studies filtered by condition, sponsor, intervention, phase, and status

## Facts

- Endpoint: POST https://api.agentwonderland.com/x402/endpoints/clinical-trial-search
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/clinical-trial-search-1ec05038
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7XRTHl5nJgDUQm7w4-Jwx

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-search-1ec05038 -d '<json body>'
```

Example prompt: Can you find up to 10 recruiting phase 3 clinical trials for lung cancer involving pembrolizumab sponsored by Merck?

## When to prefer this

Choose this endpoint when you need structured, filterable access to global clinical trial data for pipeline research, competitive intelligence, investment diligence, or therapy monitoring. It is ideal when you need to quickly narrow large public trial datasets by sponsor, condition, drug, phase, and status without manually querying ClinicalTrials.gov. Prefer this over general web search when you need clean, structured trial records rather than unstructured news or press releases.

## Known failure modes

- No matching trials found for the specified filters — returns empty result set
- Invalid phase value provided (must be one of PHASE1, PHASE2, PHASE3, PHASE4, EARLY_PHASE1, NA) — returns validation error
- max_results exceeds maximum of 10 — returns validation error
- Overly specific combination of filters yields zero results — may need to relax one or more criteria
- Payment failure via x402 protocol — call not processed

## How this service works

Clinical Trial Search: Search global clinical trial records to identify active, completed, and recruiting studies relevant to a disease area, sponsor, therapy, or research question. This agent accepts filters such as sponsor, condition, intervention, phase, and status, then narrows large public trial datasets into more useful result sets. It returns structured trial information that can support pipeline research, competitive intelligence, therapy monitoring, and diligence across biotech and p...

## Output

Returns structured clinical trial records including trial ID, title, sponsor, condition, intervention, phase, status, and study details drawn from global public trial registries, filtered down to the most relevant matches based on the provided search criteria.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "phase": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "title": "Phase",
   "description": "Trial phases (list, max 4 items). Allowed values: PHASE1, PHASE2, PHASE3, PHASE4, EARLY_PHASE1, NA",
   "json_schema_extra": {
    "example": [
     "PHASE3"
    ]
   }
  },
  "status": {
   "type": "string",
   "title": "Status",
   "default": "RECRUITING",
   "description": "Trial status: RECRUITING, ACTIVE_NOT_RECRUITING, COMPLETED, etc."
  },
  "sponsor": {
   "type": "string",
   "title": "Sponsor",
   "default": "",
   "description": "Trial sponsor/company",
   "json_schema_extra": {
    "example": "Moderna"
   }
  },
  "condition": {
   "type": "string",
   "title": "Condition",
   "default": "",
   "description": "Disease/condition",
   "json_schema_extra": {
    "example": "lung cancer"
   }
  },
  "max_results": {
   "type": "integer",
   "title": "Max Results",
   "default": 10,
   "maximum": 10,
   "minimum": 1,
   "description": "Max results (max 10)"
  },
  "intervention": {
   "type": "string",
   "title": "Intervention",
   "default": "",
   "description": "Drug/treatment name",
   "json_schema_extra": {
    "example": "pembrolizumab"
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/clinical-trial-search-1ec05038/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentwonderland.com](https://www.zero.xyz/host/api.agentwonderland.com/llms.txt)