# GoCreative Agent API — pay-per-call tools for AI agents (x402 + MCP)

> GoCreative Agent API — pay-per-call tools for AI agents (x402 + MCP) is a paid API for AI agents from api.gocreativeai.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-09).

## Facts

- Endpoint: GET https://api.gocreativeai.com/v1/leads/clinical-trials/%7Bcondition%7D
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-09
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/v1-leads-clinical-trials-7bcondition-7d-52a92e52
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hYnYL8ayZVsRyoqsCTWWF

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 v1-leads-clinical-trials-7bcondition-7d-52a92e52
```

## How this service works

AI agents pay $0.005–$0.15 per call in USDC on Base. 170+ pay-per-call tools: B2B lead data, enrichment, lookups, scrapers. Native MCP server. No API keys, no signup.

## Example request

```json
{
 "limit": 10,
 "offset": 0,
 "condition": "diabetes"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "condition",
  "limit",
  "offset"
 ],
 "properties": {
  "limit": {
   "type": "number"
  },
  "offset": {
   "type": "number"
  },
  "condition": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "count",
  "query",
  "source",
  "trials"
 ],
 "properties": {
  "count": {
   "type": "number"
  },
  "query": {
   "type": "string"
  },
  "source": {
   "type": "string"
  },
  "trials": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "phase",
     "title",
     "nct_id",
     "status",
     "sponsor",
     "sponsor_type"
    ],
    "properties": {
     "phase": {
      "type": "null"
     },
     "title": {
      "type": "string"
     },
     "nct_id": {
      "type": "string"
     },
     "status": {
      "type": "string"
     },
     "sponsor": {
      "type": "string"
     },
     "sponsor_type": {
      "type": "string"
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/v1-leads-clinical-trials-7bcondition-7d-52a92e52/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.gocreativeai.com](https://www.zero.xyz/host/api.gocreativeai.com/llms.txt)