← AgentPay — 34 pay-per-call APIs
AI code review — bugs, security, performance, quality score.
$0.05 per request · USDC on Base (eip155:8453) · no signup, no API key
/v1/code-review. An unpaid call answers 402 with signed payment terms — price, wallet, network.@x402/fetch) signs the terms and pays $0.05 in USDC on Base — no account, no API key.# 1. POST JSON — an unpaid call answers 402 with signed payment terms
curl -i -X POST https://agentpay.help/v1/code-review \
-H 'Content-Type: application/json' \
-d '{"code":"string (10-4000 chars, required)","language":"string (optional)"}'
# 2. Pay & retry automatically with any x402 client, e.g. @x402/fetch
import { wrapFetchWithPayment } from "@x402/fetch";
const paidFetch = wrapFetchWithPayment(fetch, { x402Version: 2 });
const res = await paidFetch("https://agentpay.help/v1/code-review", { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify({"code":"string (10-4000 chars, required)","language":"string (optional)"}) });
console.log(await res.json());
{
"review": {},
"language": "…"
}
{
"code": "string (10-4000 chars, required)",
"language": "string (optional)"
}
$0.05 per call, settled in USDC on Base. No subscription — you pay per successful request, and prepaid credit packs save up to 30%.
No. Your x402 client receives the 402 payment terms, pays USDC on Base, and retries automatically. No signup, no keys, no billing emails.
JSON. Shape: {"review":{"issues":"array","suggestions":"array","score":"number"},"language":"string"}
Any HTTP client works: POST the JSON body, get a 402 with payment terms, sign with an x402 library (e.g. @x402/fetch), retry. The same tool is also available on our remote MCP server at https://agentpay.help/mcp.
Related: threat-intel ($0.02) · sanctions-screen ($0.02) · agent-reputation ($0.01) Every endpoint is also an MCP tool on our remote MCP server. Prepaid credits: buy once, skip per-call payments.
Machine discovery: OpenAPI · x402 catalog · llms.txt