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x402-gateway: Wallet Checksum Validator
x402
x402-gateway: Wallet Checksum Validator is a paid API for AI agents from x402.freeq.one, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Validates the checksum of a cryptocurrency wallet address to confirm it is correctly formatted and legitimate
Price / call$0.01
Success—
StatusUnknown
How this service works
x402-gateway tool: wallet_checksum (market: agoragentic)
Output
A validation result indicating whether the provided wallet address passes the EIP-55 checksum standard or equivalent blockchain address integrity check, confirming if it is correctly formatted and safe to use for transactions.
Example use cases
Pre-transfer wallet address validation
“Before I send any ETH, check if this wallet address passes the checksum test: 0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe — I want to make sure it's legitimate and not corrupted.”
Smart contract deployment address check
“I'm about to deploy a contract and need to make sure the recipient address 0xFbA0d9e7a1B8DcD8e9B07f2bCa0E6Fb4dEcAdE4 has a valid checksum before I proceed.”
Wallet address QR code scan verification
“Someone gave me this wallet address from a QR code: 0x4bBa290826C253fa6B56F4c5e1B5e3e4C5aF1234 — can you run a checksum validation on it to confirm it wasn't corrupted during scanning?”
Technical details
Endpoint
POSThttps://x402.freeq.one/market/agoragentic/tools/wallet_checksum?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call checksum validation for crypto wallet addresses without setting up an account or API key. Ideal for AI agents that need to verify wallet address integrity before executing transactions, particularly in automated workflows where address correctness is critical. Prefer this over full KYC or on-chain verification tools when you only need format and checksum validation.
Side effects
- Invalid or malformed address format returns a validation failure or error response
- Missing tool parameter in request body causes a 400 bad request
- Payment not processed correctly causes a 402 payment required response
- Network timeout or upstream provider unavailability causes a 5xx error
- Non-hexadecimal or non-wallet string input may return an explicit invalid format error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| tool | string | Tool name (see GET /tools for the catalog) |
Tags
x402
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