Code402 Verify MCP

Reliability

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "code402-verify-mcp": {
      "type": "http",
      "url": "https://verify.code402.dev/mcp"
    }
  }
}

18 tools

• x402_verify

  Verify one or more XDR-1 signed receipts offline (free). Returns valid/invalid per receipt with signer recovery, declared signer comparison, and integrity digest. Supply raw_receipt as JSON string or array for batch.

• price_lookup

  Look up pricing for any code402 tool (free). Returns current x402 pricing tiers, accepted networks, and tool availability. Use tool_name for named lookups or url for URL-based lookups.

• iban_check

  Paid ($0.0029). Validate an IBAN: ISO 13616 structure, country registration, length, MOD 97-10 checksum. Returns pass/fail with all checks and issues. Covers 50 countries.

• sanctions_check

  Paid ($0.0029). Screen Ethereum addresses and entity names against OFAC/UN/EU sanctions lists. Returns clear/hit with matched entries. Supports both EVM addresses and human-readable names.

• onchain_address_check

  Paid ($0.0029). Validate an EVM address format and EIP-55 mixed-case checksum. Returns valid/invalid with normalization and checksum status.

• lei_check

  Paid ($0.0029). Validate a Legal Entity Identifier (LEI, ISO 17442). Checks 20-char alphanumeric format and Mod 97-10 check character. Verified via Rust WASM engine.

• luhn_check

  Paid ($0.0029). Validate a payment card or account number using the Luhn algorithm (ISO/IEC 7812-1). Checks numeric format and Mod-10 checksum. Verified via Rust WASM engine.

• mod97_check

  Paid ($0.0029). Calculate ISO 7064 Mod 97-10 remainder for any alphanumeric string. Returns the remainder (0-96, valid=1). Used for IBAN, LEI, and custom identifier validation. Verified via Rust WASM engine.

• bundle_verify

  Paid ($0.0029–$0.50). Multi-gate compliance bundle: run any combination of IBAN validation, sanctions screening, and EVM address validation in a single call. Returns all gate results + XDR-1 signed receipt. Tier auto-detected from field count.

• chain_block_number

  Paid ($0.0029). Get the latest Ethereum mainnet block number. Returns block height and timestamp.

• chain_balance

  Paid ($0.0029). Get native ETH balance of any Ethereum address. Returns balance in wei and ETH.

• chain_erc20_balance

  Paid ($0.0029). Get ERC-20 token balance via balanceOf. Returns balance in raw and human-readable form.

• chain_nonce

  Paid ($0.0029). Get the next transaction nonce for an Ethereum address.

• chain_tx

  Paid ($0.008). Get Ethereum transaction details by hash. Returns from, to, value, gas used, status, block info.

• chain_ens_resolve

  Paid ($0.008). Resolve a .eth ENS name to its Ethereum address via the universal resolver.

• chain_gas_price

  Paid ($0.0029). Get the current Ethereum mainnet gas price. Returns base fee, priority fee, and max fee in wei and gwei. Useful for estimating transaction costs.

• chain_tx_receipt

  Paid ($0.008). Get the receipt of a confirmed transaction. Returns status (success/fail), gas used, logs, contract address if deployment.

• chain_code

  Paid ($0.0029). Get the deployed bytecode at an address. Returns hex bytecode (empty = EOA, non-empty = contract). Useful for distinguishing contracts from wallets.

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