Boar blockchain MCP (basic)

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• eth_get_balance

  Get native token balance for an address on Ethereum mainnet. Returns balance in wei (hex and decimal) and in ether.

• eth_get_block

  Get block data by number or tag on Ethereum mainnet. Use hex block number (e.g. "0x1") or "latest". Returns full block object with transaction hashes.

• eth_get_transaction

  Get transaction details by hash on Ethereum mainnet. Returns full transaction object including from, to, value, input data, and status.

• eth_get_logs

  Get event logs matching a filter on Ethereum mainnet. Requires at least fromBlock and toBlock. Optionally filter by contract address and topics.

• eth_gas_price

  Get current gas price on Ethereum mainnet in wei (hex string). Use to estimate transaction costs.

• eth_estimate_gas

  Estimate gas required for a transaction on Ethereum mainnet. Returns gas estimate as hex string.

• eth_get_transaction_receipt

  Get transaction receipt by hash on Ethereum mainnet. Returns status (0x1=success, 0x0=fail), gasUsed, contractAddress (for contract deployments), and event logs.

• eth_get_code

  Get bytecode at an address on Ethereum mainnet. Returns "0x" for EOAs (wallets), non-empty hex for contracts. Use to determine if an address is a contract or EOA, and to retrieve deployed bytecode.

• eth_get_token_balance

  Get ERC-20 token balance for a wallet address on Ethereum mainnet. Returns raw balance, formatted balance with decimals, and token symbol. Calls balanceOf, decimals, and symbol on the token contract.

• eth_get_token_info

  Get ERC-20 token metadata for a token address on Ethereum mainnet. Returns name, symbol, decimals, and total supply (raw and formatted). Degrades gracefully — any individual call failure returns null for that field.

• mezo_get_balance

  Get native token balance for an address on Mezo. Returns balance in wei (hex and decimal) and in ether.

• mezo_get_block

  Get block data by number or tag on Mezo. Use hex block number (e.g. "0x1") or "latest". Returns full block object with transaction hashes.

• mezo_get_transaction

  Get transaction details by hash on Mezo. Returns full transaction object including from, to, value, input data, and status.

• mezo_get_logs

  Get event logs matching a filter on Mezo. Requires at least fromBlock and toBlock. Optionally filter by contract address and topics.

• mezo_gas_price

  Get current gas price on Mezo in wei (hex string). Use to estimate transaction costs.

• mezo_get_transaction_receipt

  Get transaction receipt by hash on Mezo. Returns status (0x1=success, 0x0=fail), gasUsed, contractAddress (for contract deployments), and event logs.

• mezo_get_code

  Get bytecode at an address on Mezo. Returns "0x" for EOAs (wallets), non-empty hex for contracts. Use to determine if an address is a contract or EOA, and to retrieve deployed bytecode.

• mezo_get_token_balance

  Get ERC-20 token balance for a wallet address on Mezo. Returns raw balance, formatted balance with decimals, and token symbol. Calls balanceOf, decimals, and symbol on the token contract.

• mezo_get_token_info

  Get ERC-20 token metadata for a token address on Mezo. Returns name, symbol, decimals, and total supply (raw and formatted). Degrades gracefully — any individual call failure returns null for that field.

• btc_get_balance

  Get confirmed and unconfirmed balance for a Bitcoin address on Bitcoin mainnet. Returns balance in satoshis.

• btc_get_history

  Get transaction history for a Bitcoin address on Bitcoin mainnet. Returns list of transactions with heights and tx hashes.

• btc_get_utxos

  Get unspent transaction outputs (UTXOs) for a Bitcoin address on Bitcoin mainnet. Returns list of unspent outputs with tx hash, position, height, and value in satoshis.

• btc_get_transaction

  Get full transaction details by txid on Bitcoin mainnet. Returns verbose transaction data including inputs, outputs, confirmations, and block hash.

• btc_get_block

  Get block header data by height on Bitcoin mainnet. Returns parsed header with hash, version, previous block hash, merkle root, timestamp, bits, and nonce.

• btc_get_fee_estimate

  Get fee rate estimate on Bitcoin mainnet for a target number of blocks. Returns estimated fee in BTC/kB and sat/byte. Use target=1 for next-block, target=6 for ~1 hour. Returns -1 if no estimate available.

• btc_get_mempool_info

  Get mempool fee histogram on Bitcoin mainnet. Returns array of [fee_rate, cumulative_vsize] pairs showing the distribution of transactions in the mempool by fee rate (sat/vB).

• btc_testnet_get_balance

  Get confirmed and unconfirmed balance for a Bitcoin address on Bitcoin testnet3. Returns balance in satoshis.

• btc_testnet_get_history

  Get transaction history for a Bitcoin address on Bitcoin testnet3. Returns list of transactions with heights and tx hashes.

• btc_testnet_get_utxos

  Get unspent transaction outputs (UTXOs) for a Bitcoin address on Bitcoin testnet3. Returns list of unspent outputs with tx hash, position, height, and value in satoshis.

• btc_testnet_get_transaction

  Get full transaction details by txid on Bitcoin testnet3. Returns verbose transaction data including inputs, outputs, confirmations, and block hash.

• btc_testnet_get_block

  Get block header data by height on Bitcoin testnet3. Returns parsed header with hash, version, previous block hash, merkle root, timestamp, bits, and nonce.

• btc_testnet_get_fee_estimate

  Get fee rate estimate on Bitcoin testnet3 for a target number of blocks. Returns estimated fee in BTC/kB and sat/byte. Use target=1 for next-block, target=6 for ~1 hour. Returns -1 if no estimate available.

• btc_testnet_get_mempool_info

  Get mempool fee histogram on Bitcoin testnet3. Returns array of [fee_rate, cumulative_vsize] pairs showing the distribution of transactions in the mempool by fee rate (sat/vB).

• eth_lookup_selector

  Look up a 4-byte function or error selector against 4byte.directory. Returns matching function/error signatures. Useful for identifying unknown calldata selectors or decoding custom errors.

• eth_get_abi

  Fetch a verified contract's ABI from Sourcify by address. Returns the full ABI array and match type ('full' or 'partial'). Returns match_type 'none' for unverified contracts. Defaults to Ethereum mainnet (chain_id 1).

• eth_resolve_ens

  Resolve an ENS name to its Ethereum address. Returns null if the name is not registered or has no address record. Example: 'vitalik.eth' → '0xd8dA6BF26964aF9D68eC99A6d99030B4ec93B700'.

• eth_lookup_address

  Reverse-resolve an Ethereum address to its primary ENS name. Returns null if no primary ENS name is set for the address.

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