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api.aventtech.com validate isin
https://api.aventtech.com/validate/isin
payable
Validate an ISIN securities identifier (ISO 6166) and check whether it is valid. Verifies structure and the Luhn check digit and extracts the country code and NSIN. Instant ISIN validation and verification for stocks, bonds and financial instruments.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.002
- Network
- base
- Pay to
- 0x5100a134d768415cc4a25d7bdbcfc44394d62282
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 7 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-10T09:12:25.580Z (1d ago)
- Category
- web-scraping
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.aventtech.com%2Fvalidate%2Fisin"