io.github.89rat/code402-verify-mcp

up checked 2026-11-11T05:38:00.595Z

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Publisher-provided description

Verify code402 XDR-1 receipts: keccak digest + secp256k1 signer recovery. Free, stateless.

Summary by lookupd

Verifies signed XDR-1 receipts offline, checking digest integrity and recovering the signer address to compare against the declared one.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http code402-verify https://verify.code402.dev/mcp

Codex, remote (streamable-http)

codex mcp add code402-verify --url https://verify.code402.dev/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

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

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (18 tools)

Publisher-provided text

• 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 diges
• 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 ur
• 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
• 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 address
• 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 en
• 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 Rus
• 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 identi
• 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. Re
• 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 wall

Details

• Version: 0.2.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 238 ms
• First indexed: 2026-11-01T09:03:24.408Z
• Last seen in registry: 2026-11-01T09:03:24.408Z

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