Directory / 2s.io
2s.io/api/validate/isin working
https://2s.io/api/validate/isin
Before you pay
- Advice
ok- Protocol
- x402 · http · GET
- Asks for
- 0.0025 USDC on base
- Catalogue says
- 0.0025 USDC
- Pays to
0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5- Last check
- 26 min ago · 133 ms · HTTP 402
- Detail
- 402 with valid terms
Reliability
- Uptime 24 h
- 100.0%
- Uptime 7 days
- 100.0% (126 checks)
- Uptime 30 days
- 100.0% (signed daily)
- Paid calls 30 d
- 1 from 1 payers (x402 Bazaar)
- Listed by
- x402-bazaar
- First seen
- 2026-11-05 22:12 UTC
Description (from the catalogue, unverified)
Validate an ISIN (International Securities Identification Number, ISO 6166): 2-letter country prefix + 9-char NSIN + Luhn check digit. Returns {valid, isin, country, nsin, embeddedCusip (for US/CA), checkDigit, reason}. Catches transposed characters in security master data that a regex misses. Structure + checksum only.
Signed history
| When | Statement | Log index |
|---|---|---|
| 2026-11-09 00:15 UTC | 73079695…2c3130 daily summary | 293065 |
| 2026-11-08 00:13 UTC | ad11ed4a…79168f daily summary | 214752 |
| 2026-11-07 00:16 UTC | 86daad3e…ac6554 daily summary | 135828 |
| 2026-11-06 00:13 UTC | 3e806938…6ae0b7 daily summary | 44704 |
Verify any statement offline: how.
For agents and owners
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