Address validation
Validate a blockchain address. Supply `chain` to check against a specific chain, or omit it to auto-detect. Ethereum addresses report their EIP-55 checksum state; Bitcoin covers base58check (P2PKH/P2SH) and bech32/bech32m segwit (P2WPKH/P2W
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 433 ms
- Price
- $0.004 per call
- Paying buyers, last 30 days
- 2 (directory's own records)
- Paid calls, last 30 days
- 2
- Category
- Developer tools and utilities
- Address
- https://wallet.openverbs.com/v1/validate
Accuracy
Accuracy scores are published once a seller has enough paid checks against an independent record (at least 7 scored answers over at least 7 days). Until then no score is shown, and a missing score is never a pass.
For agents
This page as JSON: /sellers/b67b98a5cd55.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).