402rates.com
api.402rates.com · 3 paid endpoints · listed 2026-10-27
Payment integration check for 0.001 USDC; no external data lookup. Returns time, rail, network mode and free/paid capabilities. HTTP payment options can include Base, Polygon, Arbitrum and XDC; the challenge lists currently available networks for each transport. The receipt identifies the paid network and transaction. Business/professional use only. Terms: https://402rates.com/data-terms/
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| GET | api.402rates.com/v1/ping Payment integration check for 0.001 USDC; no external data lookup. Returns time, rail, network mode and free/paid capabilities. HTTP payment options can include | $0.001 | Polygon, Arbitrum, eip155:50, Base |
| GET | api.402rates.com/v1/settlement/costs Measured USDC transfer costs on Base, Polygon, Arbitrum, Ethereum and XDC: simulated gas, current token prices, fresh chain heads and applicable rollup L1 fees. | $0.01 | Polygon, Arbitrum, eip155:50, Base |
| GET | api.402rates.com/v1/rwa/yields Realised 30-day yields for 13 tokenized treasury funds under the Open Treasury Yield Basis. Measured rows use NAV, price or verified passive-holder balances, wi | $0.03 | Polygon, Arbitrum, eip155:50, Base |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 5 days ago | api.402rates.com/v1/ping | 402 | 219 | valid x402 v2 terms |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| 2026-11-01 | 5 | $0.005 | |
| 2026-10-31 | 8 | $0.008 | |
| 2026-10-30 | 8 | $0.008 | |
| 2026-10-29 | 9 | $0.009 | |
| 2026-10-28 | 11 | $0.04 | |
| 2026-10-27 | 6 | $0.006 | |
| 2026-10-26 | 3 | $0.003 | |
| 2026-10-25 | 8 | $0.008 |
Is this your API?
<a href="https://logicnodes.io/observatory/p/api.402rates.com"><img src="https://logicnodes.io/observatory/badge/api.402rates.com.svg" alt="x402 status"></a>
Claim it for free with
x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/api.402rates.com