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Crypto Wallet Address Validator
x402
Crypto Wallet Address Validator is a paid API for AI agents from wallet.openverbs.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).
Validates a cryptocurrency wallet address, optionally against a specific chain (Ethereum or Bitcoin)
Price / call$0.004
Success—
StatusUnknown
How this service works
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 `valid:false` — not an error.
Output
A validation result indicating whether the provided wallet address is valid, potentially including chain-specific validation details when a chain (ethereum or bitcoin) is specified in the request.
Example use cases
Pre-transfer address verification
“Before I send any crypto, check whether this Bitcoin address is valid: bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq”
DeFi app input validation
“A user just entered the wallet address 0xAbCdEf1234567890abcdef1234567890ABCDEF12 in my app — is it a valid Ethereum address?”
Payment pipeline address check
“I need to verify that 1A1zP1eP5QGefi2DMPTfTL5SLmv7Divf Na is a properly formatted Bitcoin address before we queue it for a payout”
Technical details
Endpoint
POSThttps://wallet.openverbs.com/v1/validateWhen to prefer
Use this endpoint when you need a fast, low-cost sanity check on a cryptocurrency wallet address before executing a transfer, storing the address, or displaying it to a user. It is especially useful in payment pipelines, onboarding flows, or any agent workflow where accepting a bad address could result in lost funds. Prefer this over client-side regex checks when you want authoritative, chain-aware validation for Ethereum and Bitcoin addresses.
Side effects
- Invalid or malformed address string returns a failed validation response
- Unsupported chain specified (only ethereum and bitcoin are supported)
- Address too long or too short (maxLength 120, minLength 1) triggers schema validation error
- Network or service errors returning HTTP 402 if payment is not properly handled
- Empty or missing address field returns a schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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