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Validate an ISIN (ISO 6166) by structure and Luhn mod-10 check digit over the A=...

https://hcrb.in/v1/tools/isin-check/call

Overview

Validate an ISIN (ISO 6166) by structure and Luhn mod-10 check digit over the A=10…Z=35 converted string.

Protocol x402 (POST)
Price $0.0050
Payment Asset USD Coin
Payment Network eip155:8453
Category uncategorized
Provider hcrb
Source bazaar
Indexed 2026-10-26 14:43:37

Health

Status healthy
Latency (p50) 1036ms
Uptime (30d) 100.0%
Reliability Score 82/100
Last Checked 2026-10-30 18:22:22
Last Healthy 2026-10-30 18:22:22
Consecutive Failures 0

x402 Payment Validation

Payment Requirements Valid
Asset Verified Known USDC
Facilitator —

Input Schema

{ "body": { "input": { "isin": "US0378331005" } }, "bodyType": "json", "method": "POST", "type": "http" }

Output Schema

{ "example": { "reason": "checksum valid", "valid": true }, "type": "json" }

Recent Health Checks

Time Status HTTP Latency Error
2026-10-30 18:22:22 healthy 402 1036ms
2026-10-30 17:20:41 healthy 402 705ms
2026-10-30 16:22:40 healthy 402 1308ms
2026-10-30 15:19:57 healthy 402 1053ms
2026-10-30 14:20:59 healthy 402 1110ms
2026-10-30 13:23:07 healthy 402 1334ms
2026-10-30 12:20:18 healthy 402 689ms
2026-10-30 11:20:41 healthy 402 1327ms
2026-10-30 10:21:57 healthy 402 1130ms
2026-10-30 09:21:33 healthy 402 1618ms
2026-10-30 08:15:57 healthy 402 646ms
2026-10-30 07:19:15 healthy 402 571ms
2026-10-30 06:20:28 healthy 402 612ms
2026-10-30 05:17:18 healthy 402 579ms
2026-10-30 04:16:03 healthy 402 490ms
2026-10-30 03:27:08 healthy 402 463ms
2026-10-30 02:17:16 healthy 402 1144ms
2026-10-30 01:19:21 healthy 402 498ms
2026-10-30 00:16:57 healthy 402 2042ms
2026-10-29 23:13:24 healthy 402 245ms