x402 price index · endpoint

POST https://hcrb.in/v1/tools/abn-check/call · tool abn-check · source self · id 34ea364fcff71458

current quote
0.005 USDC declared observed 2026-09-15T18:02:57.000Z
percentile
P84 of 197 indexed USDC quotes (share quoting at or below this one; P0 = cheapest)
inflation flag
inflation latest quote > 1.5× the 30-day median
7-day
0.000999 USDC / 0.000999 USDC / 0.005 USDC min / median / max · 12 obs · change +400.5%
30-day
0.000999 USDC / 0.000999 USDC / 0.005 USDC min / median / max · 12 obs · change +400.5%
first / last seen
2026-09-12T12:02:24.000Z / 2026-09-15T18:02:56.000Z

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/34ea364fcff71458.svg)](https://index.code402.dev/e/34ea364fcff71458)
<a href="https://index.code402.dev/e/34ea364fcff71458"><img src="https://index.code402.dev/badge/34ea364fcff71458.svg" alt="x402 quoted price for https://hcrb.in/v1/tools/abn-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://hcrb.in publishes in /.well-known/x402.json. Nothing is sent anywhere else.

Price history (last 12 observations, 30 days)

observedquotedassetchainpay tokind
2026-09-15T18:02:57.000Z0.005 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-15T12:03:11.000Z0.005 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-15T06:02:23.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-14T12:02:52.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-14T06:02:52.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-14T00:02:52.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-13T18:02:52.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-13T12:02:52.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-13T06:02:52.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-13T00:02:52.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-12T18:02:52.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared
2026-09-12T12:02:24.000Z0.000999 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA0291384530xc59c85e661d34084a7769f955d17fd38254a6235declared

Raw JSON: /v1/history · /v1/price