I built a machine-payable crypto intelligence API.

No API keys. No subscriptions. No billing dashboard.

AI agents pay per request in USDC using HTTP 402.

CoinOpAI

How It Works

Agent calls endpoint

Server responds with HTTP 402 Payment Required

x402 protocol handles payment in USDC on Base

Request retries automatically

Data returns

The API becomes its own billing system.

What's Inside

819 agentic workflow prompts — ready-to-run automations

Kronos intelligence — hourly crypto signals, risk state, directional decisions, post-trade audits

$0.05 USDC per call — fractions of a cent to a few cents

Every decision gets a decision_id .…