Delx Commerce EIP-55 Address Checksum Validator

x402

Delx Commerce EIP-55 Address Checksum Validator is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-01).

Validates whether an EVM (Ethereum) address conforms to EIP-55 mixed-case checksum encoding and returns the correctly checksummed form

Price / call$0.003

Seller volume →—

Success—

StatusUnknown

How this service works

Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.

Output

Returns a JSON object indicating whether the submitted address is valid EIP-55 checksummed (valid: true/false), the expected correctly checksummed address string, the algorithm used (keccak256), and a schema identifier confirming the response format.

Example use cases

Pre-transfer address sanity check

“Before I send USDC to 0x95222290dd7278aa3ddd389cc1e1d165cc4bafe5, can you verify it passes EIP-55 checksum validation and give me the correctly cased version?”

Smart contract deployment validation

“I'm about to deploy a contract that references 0xab5801a7d398351b8be11c439e05c5b3259aec9b — is that address properly EIP-55 checksummed or do I need to fix the casing?”

Wallet address format normalization

“A user submitted the address 0xde0b295669a9fd93d5f28d9ec85e40f4cb697bae to my dApp — can you tell me if it's a valid EIP-55 checksum and what the correct mixed-case form should be?”

Technical details

Endpoint

POSThttps://commerce.delx.ai/api/v1/x402/eip55-check?utm_source=zero.xyz

When to prefer

Choose this endpoint when an agent needs a lightweight, pay-per-use, no-signup EIP-55 address checksum check with verifiable delivery settled in USDC. Ideal for agents operating in Web3 workflows that need to validate or normalize EVM addresses on-demand without maintaining a subscription or running local keccak256 checksum logic.

Side effects

Invalid or malformed address string (non-hex characters, wrong length) may return valid: false or an error
Missing address field in request body causes validation failure
Address shorter or longer than 40 hex characters may be rejected
Network or payment processing errors from the x402 micropayment layer

Input

Schema · Request body

Field	Type	Description
address	string	EVM address (40 hex chars, optional 0x).

Output

Schema · Response

{
  "type": "json",
  "example": {
    "valid": true,
    "schema": "delx/util-eip55-check/v1",
    "expected": "0x95222290DD7278Aa3Ddd389Cc1E1d165CC4BAfe5",
    "algorithm": "keccak256",
    "is_checksummed": true
  }
}

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