# Xynaptic Health Clinical Trials

> Xynaptic Health Clinical Trials is a paid API for AI agents from api.xynaptic.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-02).

Search worldwide clinical trials from ClinicalTrials.gov v2 by condition, drug, or sponsor, returning status, phase, eligibility criteria, and contact information

## Facts

- Endpoint: GET https://api.xynaptic.io/v1/health-clinical-trials?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/xynaptic-health-clinical-trials-055760a7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_izxcKrDiGB7EagVsTmpcq

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 xynaptic-health-clinical-trials-055760a7
```

Example prompt: Can you find up to 5 recruiting clinical trials for type 2 diabetes on ClinicalTrials.gov, including their phase, eligibility, and contact details?

## When to prefer this

Use this endpoint when you need structured, up-to-date clinical trial data including eligibility and contacts, sourced directly from ClinicalTrials.gov v2. Prefer this over general web search when you need machine-readable trial metadata (phase, status, criteria) for conditions, drugs, or sponsors, especially for patient-facing or research applications requiring accurate enrollment status.

## Known failure modes

- No trials found for obscure or misspelled condition/drug names — returns empty result set
- ClinicalTrials.gov upstream API unavailable — may return 502 or timeout
- Overly broad queries (no filters) may return truncated or unhelpful results beyond the limit
- Non-English condition names may not match ClinicalTrials.gov terminology
- Payment failure (x402) if USDC balance is insufficient

## How this service works

Xynaptic Health Clinical Trials — worldwide clinical trials from ClinicalTrials.gov v2: search by condition, drug or sponsor. Status (recruiting?), phase, eligibility criteria, contacts. GET ?condition=diabetes (&drug=&status=recruiting&limit=5).

## Output

Returns a list of clinical trials matching the query, each including trial name, NCT identifier, recruitment status (e.g. recruiting, completed), phase (I–IV), eligibility criteria, and contact information for the trial site, sourced from ClinicalTrials.gov v2.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/xynaptic-health-clinical-trials-055760a7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.xynaptic.io](https://www.zero.xyz/host/api.xynaptic.io/llms.txt)