A registry of pay-per-use APIs designed for AI agents.
Every API call is 1¢ or less.
const response = await fetch(
"https://api.redcent.io/sec/filings/AAPL",
{
method: "GET",
headers: {
"X-402-Payment": wallet.sign("$0.001")
}
}
);
// That's it. No API key. No account. Just data.Everything AI agents need to access data autonomously, without human intervention.
AI agents pay per request using x402 protocol. No signup, no accounts, no rate limit tiers.
Payments settle in ~200ms via USDC. No invoices, no net-30, no chargebacks.
One consistent API format across all data sources. Clean docs, predictable responses.
Designed from the ground up for autonomous AI agents that need data access without human intervention.
Three simple steps to access any API in our registry.
Browse our registry of pay-per-use APIs. Find the data you need with clear pricing and documentation.
Make an HTTP request with an x402 payment header. Your wallet signs a micropayment for the exact cost.
Payment verifies in ~200ms. You get your data instantly. No API keys, no rate limits, no subscriptions.
Starting with public domain government data. More APIs coming soon.
Company filings, 10-K, 10-Q, insider trades
Forecasts, alerts, historical weather data
Federal debt, spending, revenue data
Employment, wages, CPI, labor data
Patent search, trademark monitoring
Demographics, housing, economic census
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