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Herd MCP

Herd connects Claude Code to on-chain data through the Model Context Protocol. Query contracts, decode transactions, and analyze wallets using natural language.

Capabilities

Contracts

Fetch metadata, search source code, compare proxy implementations

Transactions

Decode traces, parse logs, track balance changes

Wallets

Detect wallet types, view holdings, list deployments

Tokens

Track transfers, check balances, pull market data

Supported Networks

NetworkStatus
EthereumSupported
BaseSupported

Use Cases

Developers — Understand existing contracts before integrating. Search for specific patterns in verified source code. Security Researchers — Audit contracts, trace exploit transactions, compare implementation versions. Analysts — Track wallet activity, monitor token flows, investigate on-chain behavior.

Example

> What does the swap function do in Uniswap V3 Router?

Claude fetches the contract, parses the source, and explains the swap logic.
> Decode transaction 0x1234...

Claude retrieves traces, logs, and balance changes, then summarizes what happened.

Tools Quick Reference

ToolUse ForExample Query
Contract MetadataContract info, ABI, tokens”What is contract 0x…?”
Code AnalysisSearch contract code”Find the transfer function”
Diff VersionsCompare upgrades”What changed in the upgrade?”
Query TransactionDecode transactions”What happened in tx 0x…?”
Latest TransactionsRecent function/event calls”Show recent swaps”
Transaction ActivityAddress tx history”What has 0x… been doing?”
Wallet OverviewWallet profile”Overview of 0x…”
Token ActivityToken transfer history”USDC history for 0x…”
Deployed ContractsFind deployments”What contracts did 0x… deploy?”

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