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Read any smart contract, instantly.

One HTTP call returns typed, decoded contract state from multiple EVM chains, with no ABI files, no node, and no SDK required. Available over REST, MCP, and n8n.

Ethereum
{
  "pair":   feed.description(),
  "price":  string(formatUnits(feed.latestAnswer() / priceScale, 2)),
  "supply": string(formatUnits(weth.totalSupply() / weiPerEth, 0))
}
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Free to start. No monthly cap, no credit card

Or try one of 14 free tools first.

You write the read. evmquery does the wiring.

Name a contract and a method. The ABI, the proxy and the batching are handled before the answer comes back.

  1. ABI resolved

    Read any verified contract by address. No ABI files to find, paste or keep in sync. Structs decode into fields you dot straight into.

    • usdc.balanceOf(owner)0x70a08231 balanceOf(address)sol_int
    • pool.slot0().tick0x3850c7bd slot0()sol_int

  2. Proxy unwound

    EIP-1967, transparent and beacon proxies are followed to the implementation, so you call the address users know.

    0x87870B…A4E2
    via EIP-1967 slot
    0x728a13…03CF

    10 of 44 major contracts we checked resolve through a proxy.

  3. Reads batched

    Every independent read in an expression goes out in one Multicall3 round trip per chain. The console above reports the server's own call and round count.

    token.name()token.symbol()token.decimals()token.totalSupply()
    Multicall3Ethereum

    4 calls, 1 round trip.

Same expression in your agent, your code or your workflow.

Add the MCP server to your AI client, call the REST API from your code, or add the n8n node to a workflow.

Terminal
claude mcp add \
  --transport http evmquery \
  https://api.evmquery.com/mcp

The first connection opens a browser sign-in to your free account.

Then ask: "What's Vitalik's USDC balance on Ethereum?"

your agent can write usdc.balanceOf("0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045") on evm_ethereum

14 free tools. No API key.

Each tool runs a real evmquery expression against the live API in your browser, with no signup and no wallet connection. Copy the expression into your own code when you are ready.

Browse all 14 tools

Wallet checks

Tokens & NFTs

Contracts

Names & prices

Frequently asked questions

Ethereum, Base, BNB Smart Chain, and Polygon today. We’re actively adding more EVM-compatible chains.

Yes. There's no monthly cap, a generous free tier for development and early production use, bounded by a rate limit rather than a quota. No credit card required to get started.

Rate limits are applied per API key. Auto-batching means a single expression touching multiple contracts counts as one request. Need higher throughput? Pro and Enterprise plans are available now.

Every query is a single round trip: auto-batching folds multi-contract expressions into one Multicall3 call instead of one request per contract, and there's no caching layer between you and the chain, so you always read live state. Actual response time depends on the target chain and contract complexity. Watch the live query console on the homepage for real, current numbers rather than a quoted average.

For MCP connections, evmquery uses browser-based sign-in. Your client handles it automatically. For the REST API, requests are authenticated with an API key transmitted over HTTPS. You can generate and rotate keys from the dashboard.

No. evmquery auto-resolves ABIs for verified contracts. For unverified contracts, you can supply an ABI in the schema field of your query.

evmquery works with any client that supports the Model Context Protocol, including Claude Code, Cursor, VS Code, Codex and Claude. Setup is a single URL, with no plugins or SDKs to install. Your client handles sign-in automatically.

Yes. Every query reads from the latest block at execution time, and there is no caching layer between you and the chain. Response metadata includes the exact block number so you always know what you're looking at.

Start reading contract state with one call.

The same endpoint you just saw in action, ready for your app.

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Free tier included · No credit card