xyz.tenzro/tenzro-ethereum
Ethereum tools over MCP: Chainlink feeds, ENS, ERC-8004 agents, EAS attestations, transactions.
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https://ethereum-mcp.tenzro.xyz/mcpeth_call_contractExecute a read-only eth_call against a smart contract. Params: to (contract address), data (hex-encoded calldata), block (default 'latest'). Returns the raw hex result. Use eth_encode_function to build calldata from a function signature and arguments.
eth_encode_functionABI-encode a function call. Computes the 4-byte selector from the canonical function signature via Keccak-256, then left-pads each argument to 32 bytes. Returns the complete hex-encoded calldata ready for eth_call or a transaction. Example: function_sig='transfer(address,uint256)', args=['0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045', '0xde0b6b3a7640000'].
eth_estimate_gasEstimate gas required for a transaction via eth_estimateGas. Params: to (required), from/data/value (optional). Returns estimated gas in decimal and hex.
eth_get_attestationQuery an attestation from Ethereum Attestation Service (EAS) by UID. Posts a GraphQL query to the EAS indexer at easscan.org. Returns attester, recipient, schema, data, timestamp, revocation status, and decoded data when available.
eth_get_balanceGet the ETH balance of an address via eth_getBalance. Returns balance in wei, Gwei, and ETH.
eth_get_blockGet block by number via eth_getBlockByNumber. Params: block_number (hex or 'latest'), full_transactions (bool, default false). Returns block header, transactions, and metadata.
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eth_get_fee_historyGet fee history for recent blocks via eth_feeHistory. Returns base fees per gas, gas used ratios, and reward percentiles for EIP-1559 gas estimation.
eth_get_gas_priceGet the current gas price from the Ethereum network via eth_gasPrice JSON-RPC. Returns the gas price in wei, Gwei, and hex.
eth_get_priceGet token price from a Chainlink AggregatorV3Interface data feed via eth_call to latestRoundData(). Default feed: ETH/USD on mainnet (0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419). Returns price with 8 decimal precision, round ID, and update timestamps.
eth_get_token_balanceGet ERC-20 token balance for an address via eth_call to balanceOf(address). Params: token_address (ERC-20 contract), owner_address. Returns raw balance (caller must divide by 10^decimals for human-readable amount).
eth_get_transactionGet transaction details by hash via eth_getTransactionByHash. Returns sender, recipient, value, gas, input data, block number, and nonce.
eth_get_transaction_receiptGet transaction receipt by hash via eth_getTransactionReceipt. Returns status (0x0=failure, 0x1=success), gas used, logs, contract address (if deployment), and block info.
eth_lookup_agent_8004Look up an AI agent in the ERC-8004 Agent Registry by agent ID (uint256) or owner address. Builds the calldata for getAgent(uint256) or getAgentsByOwner(address) that can be used with eth_call_contract against a deployed ERC-8004 registry.
eth_lookup_ensReverse-lookup an Ethereum address to its ENS name via the Universal Resolver on-chain. Constructs <address>.addr.reverse and calls resolve(). Falls back to OnchainKit ENS API. Params: address (hex).
eth_register_agent_8004Build transaction data for registering an AI agent via ERC-8004 Agent Registry. ERC-8004 defines an on-chain registry for autonomous AI agents with capabilities, metadata URI, and owner tracking. Returns the ABI-encoded function selector and parameter breakdown for registerAgent(string,string[],string). The caller must sign and submit the transaction to the registry contract.
eth_resolve_ensResolve an ENS name to an Ethereum address. Tries the ENS Universal Resolver on-chain via eth_call (resolve(bytes,bytes) at 0xc0497E381f536Be9ce14B0dD3817cBcAe57d2F62). Falls back to the OnchainKit ENS API as a secondary source. Params: name (e.g. 'vitalik.eth').
eth_send_raw_transactionBroadcast a pre-signed Ethereum transaction via eth_sendRawTransaction. Params: raw_tx (hex-encoded RLP-signed transaction, with or without 0x prefix). Returns the resulting transaction hash as plain text. Use eth_encode_function + eth_estimate_gas + an external signer (or tenzro_signTransaction with chain_id matching the target EVM chain) to build the raw_tx.
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