x402 price index · endpoint

POST https://rail.akrivis.in/v1/tools/rfc-check/call · tool rfc-check · source registry · id c9a65936025f9bed

current quote
0.000999 USDC declared observed 2026-09-15T18:06:00.000Z
percentile
P55 of 197 indexed USDC quotes (share quoting at or below this one; P0 = cheapest)
inflation flag
no (latest quote ≤ 1.5× the 30-day median)
7-day
0.000999 USDC / 0.000999 USDC / 0.000999 USDC min / median / max · 22 obs · change 0.0%
30-day
0.000999 USDC / 0.000999 USDC / 0.000999 USDC min / median / max · 22 obs · change 0.0%
first / last seen
2026-09-10T06:04:06.000Z / 2026-09-15T18:05:59.000Z

Embed the badge

The badge is served from this index with a 1-hour cache and reads "unknown" whenever there is no data. It links back here so anyone can see the history behind the number.

x402 quoted price badge

[![x402 price](https://index.code402.dev/badge/c9a65936025f9bed.svg)](https://index.code402.dev/e/c9a65936025f9bed)
<a href="https://index.code402.dev/e/c9a65936025f9bed"><img src="https://index.code402.dev/badge/c9a65936025f9bed.svg" alt="x402 quoted price for https://rail.akrivis.in/v1/tools/rfc-check/call"></a>

Verify a receipt

Paste the XDR-1 receipt JSON a paid call returned (the X-Receipt header, base64-decoded, or the receipt object inside it). The signer is recovered offline and compared with the signer https://rail.akrivis.in publishes in /.well-known/x402.json. Nothing is sent anywhere else.

Price history (last 22 observations, 30 days)

observedquotedassetchainpay tokind
2026-09-15T18:06:00.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-15T12:06:12.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-15T06:05:24.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-15T00:05:51.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-14T18:05:52.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-14T12:05:53.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-14T06:05:53.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-14T00:05:54.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-13T18:05:53.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-13T12:05:54.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-13T06:05:53.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-13T00:05:53.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-12T18:05:53.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-12T12:05:24.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-12T06:06:29.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-12T00:05:41.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-11T18:05:31.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-11T12:06:52.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-11T00:04:35.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-10T18:03:54.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-10T12:03:54.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-10T06:04:07.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared

Raw JSON: /v1/history · /v1/price