Boar Blockchain MCP

Overview

Boar Network's MIT-licensed MCP server exposes blockchain infrastructure access to agents, packaged with setup guides and free access paths. An agent builder plugs it in for chain data reads without standing up their own node infrastructure. Documentation on exact chain and endpoint coverage lives in the repo — check it against your target chains before adopting.

Tool inventory — 46 tools, probed live 2026-07-14

• 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
• 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 fie
• mezo_testnet_get_balance — Get native token balance for an address on Mezo testnet. Returns balance in wei (hex and decimal) and in ether.
• mezo_testnet_get_block — Get block data by number or tag on Mezo testnet. Use hex block number (e.g. "0x1") or "latest". Returns full block object with transaction hashes.
• mezo_testnet_get_transaction — Get transaction details by hash on Mezo testnet. Returns full transaction object including from, to, value, input data, and status.
• mezo_testnet_get_logs — Get event logs matching a filter on Mezo testnet. Requires at least fromBlock and toBlock. Optionally filter by contract address and topics.
• mezo_testnet_gas_price — Get current gas price on Mezo testnet in wei (hex string). Use to estimate transaction costs.
• mezo_testnet_get_transaction_receipt — Get transaction receipt by hash on Mezo testnet. Returns status (0x1=success, 0x0=fail), gasUsed, contractAddress (for contract deployments), and event logs.
• mezo_testnet_get_code — Get bytecode at an address on Mezo testnet. 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_testnet_get_token_balance — Get ERC-20 token balance for a wallet address on Mezo testnet. Returns raw balance, formatted balance with decimals, and token symbol. Calls balanceOf, decimals, and symbol on the token contract.
• mezo_testnet_get_token_info — Get ERC-20 token metadata for a token address on Mezo testnet. Returns name, symbol, decimals, and total supply (raw and formatted). Degrades gracefully — any individual call failure returns null for
• 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 avail
• 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 avai
• 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 main
• 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.

Live probe verifies the interface responds — not what the tools do, their safety, or their output quality.

Where Boar Blockchain MCP fits

Related concepts: What Are MCPs? The Standard Way to Give Agents Tools, What Are Onchain Agents?