Agent Paycheck

A tiny paid API that helps AI agents decide whether another x402 endpoint is worth paying before they spend money.

Paid Endpoint

POST /v1/check

Price

$0.002

Network

eip155:8453

Payment

x402 enabled

What It Does

Agent Paycheck scores a paid endpoint before an agent pays for it. It returns pay, manual_review, or reject with reasons, warnings, and a recommended maximum price.

Use It

https://agent-paycheck.onrender.com/v1/check

curl -X POST https://agent-paycheck.onrender.com/v1/check \
  -H "content-type: application/json" \
  -d '{"endpoint_url":"https://example.com/x402/search","task":"check current product availability before purchase","price_usd":0.002,"max_budget_usd":0.01,"output_schema":{"available":"boolean"},"recent_activity":{"last_30_days":120}}'

Sample Input

{
  "endpoint_url": "https://example.com/x402/search",
  "task": "check current product availability before purchase",
  "price_usd": 0.002,
  "max_budget_usd": 0.01,
  "output_schema": {
    "available": "boolean"
  },
  "recent_activity": {
    "last_30_days": 120
  }
}

Discovery

Machine-readable metadata is available at /.well-known/agent-paycheck.json. Health check is available at /health.

This is meant to be a cheap guardrail in front of agent-to-agent payments, not a guarantee that any endpoint is safe or valuable.