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toolbelt402.tpoborne.workers.dev validate checksum
https://toolbelt402.tpoborne.workers.dev/validate/checksum
payable
Validate identifiers by checksum: IBAN (mod-97), card numbers (Luhn), EAN-13, ISBN-10/13, UUID (RFC-4122), ULID. Batch up to 100 per call with per-item reasons.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.002
- Network
- base
- Pay to
- 0x06b40bf8Dfdc45049ea7f600c84301E227a2Ca15
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 712 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-10T09:14:13.104Z (2d ago)
- Category
- other
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Ftoolbelt402.tpoborne.workers.dev%2Fvalidate%2Fchecksum"