Any contract
Read state by address. No ABI files, ever.
usdc.balanceOf(vitalik)
→ 2,847.19
Ask Claude, ChatGPT, Cursor, Windsurf, or Cline about any smart contract.
NFT floors, DAO votes, token flows — ask in English, get the real onchain answer. One install, every contract, across every chain.
Works with Claude, ChatGPT, Cursor, Windsurf, Cline
Why this exists
Your AI agent can't see the chain.
Claude is brilliant at reasoning. It's also completely blind to onchain state unless you hand it the data. And handing it raw RPC responses burns context and confuses the model.
Hallucinated answers
Ask an LLM about a contract and it guesses from training data that's months stale. Balances, governance outcomes, NFT floors — all wrong.
Copy-paste archaeology
Etherscan read tab, decode the hex, paste back into the chat, hope the model interprets it right. Repeat for every question.
One model, one chain
Whichever plugin you find usually only speaks one chain and a handful of protocols. The rest of the EVM universe is invisible.
No shared read layer
Every tool reinvents contract reading. None of it is interoperable. Your Claude setup doesn't help your Cursor setup.
What evmquery does
One read layer. Every AI client you use.
One MCP URL. Claude, ChatGPT, Cursor, Windsurf, Cline — any agent that speaks MCP can now read any contract on any EVM chain.
- Plain English in, real numbers out
Ask “What’s the floor of Pudgy Penguins?” and get the number from the contract, at the block you're on.
- Governance, live
DAO proposal state, vote counts, quorum — read straight from the governor contract, no third-party indexer in between.
- Any contract, any chain
Verified contracts on Ethereum, Base, and BNB Smart Chain work out of the box. Proxies resolve automatically.
- Works in every MCP client
One URL, one OIDC sign-in. Claude, Cursor, Windsurf, VS Code, Cline, Zed — same capability across all of them.
- Private by default
evmquery only reads public onchain state. No private keys, no signing. Your agent conversations stay with your AI provider.
bash
claude mcp add evmquery \
--transport http \
https://api.evmquery.com/mcp
One URL. Sign in once. Every AI client gets onchain vision.
Everything you reach for, in one expression.
Read any EVM contract without wiring providers, ABIs, or decoders by hand.
Proxy-aware
EIP-1967, transparent, beacon — resolved automatically.
proxy 0xA0b86a…EB48
impl 0x43506…8C9D
Typed results
BigInt, address, struct — decoded and ready.
{
"result": "2847.193021",
"type": "uint256",
"chain": "evm_ethereum"
} Cross-protocol in one call
Aave, Uniswap, Curve in a single query — independent reads auto-batched into one Multicall3 round.
q({
health: formatUnits(
aave.getUserAccountData(me).healthFactor, 18),
position: uniswap.positions(solInt(42)),
}) Drop it in your agent
MCP for Claude, Cursor, VS Code, Windsurf. REST for everything else.
claude mcp add evmquery \ --transport http \ https://api.evmquery.com/mcp
Frequently asked questions
Anything that speaks the Model Context Protocol. Tested with Claude Code, Claude Desktop, Cursor, VS Code, Windsurf, Cline, and Zed. Setup is a single URL — no plugins or SDKs.
ChatGPT's custom connector support lets you wire MCP servers into your workspace. Point it at https://api.evmquery.com/mcp and sign in with OIDC. If you need a specific integration pattern, let us know.
Anything that maps to reading a verified contract. NFT floor and ownership, ERC-20 balances and allowances, DAO proposal states and vote counts, Aave health, Uniswap positions, Chainlink price feeds — all of it is one question away.
Ethereum, Base, and BNB Smart Chain today. More EVM chains are being added continuously. If a contract is verified on one of the supported chains, your agent can read it.
No. evmquery reads onchain state by public address. It never sees private keys, never signs transactions, and never stores your AI conversations.
Give your AI onchain vision.
Free tier included. No credit card. One URL, any EVM chain.