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/P2WSH/P2TR). A well-formed but invalid address returns…
| Host | wallet.openverbs.com |
|---|---|
| Price | $0.004 per call |
| Network | Base |
| Paid endpoints listed | 4 |
| Calls, last 30 days* | 8 |
| Most unique payers on one endpoint (30 days)* | 2 |
| Last paid call* | 2026-10-08 |
| Tags | validate wallet address, ethereum address validation, bitcoin address validation, crypto address checker, blockchain address validation, detect blockchain address, wallet chain detection, identify crypto address |
* From the public x402 Bazaar index (snapshot 2026-10-18T04:07Z); reported by the facilitator, not measured by us.
Endpoints
| URL | Method | Price |
|---|---|---|
https://wallet.openverbs.com/v1/validateValidate a blockchain address. Supply `chain` to check against a specific chain, or omit it to auto-detect. Ethereum… | POST | $0.004 |
https://wallet.openverbs.com/v1/detectGuess which chain an address belongs to from its shape and encoding, without requiring the caller to know it up front.… | POST | $0.004 |
https://wallet.openverbs.com/v1/normalizeNormalise an address to its canonical form — Ethereum to its EIP-55 checksummed form, bech32 Bitcoin to lowercase… | POST | $0.004 |
https://wallet.openverbs.com/v1/eip55Apply the EIP-55 mixed-case checksum to an Ethereum address, regardless of its input casing. Returns the checksummed… | POST | $0.004 |
Source: x402 Bazaar discovery API (Coinbase CDP) · Licence: Public discovery metadata; descriptions by each provider. Listed in x402 pay-per-call APIs. We list tools; we do not test, rate or endorse them.
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