• READ
  • AUDIT
  • EXECUTE
  • HUMAN

How to query blockchain state with your AI

Connect QuickNode to your agent to pull live data directly from the Ethereum network. Once connected, your AI handles the RPC calls for you.

Ask AI about this page

Short answer

How can I use my AI to check Ethereum data?

Your AI uses QuickNode's RPC tools to fetch block numbers, call smart contracts, and pull transaction receipts. You get direct access to the chain through natural language commands. This setup lets you audit logs or check contract states without writing manual scripts.

The outcomes

What your AI can do

The data your agent pulls from the network.

READ

Fetch block data

Your AI checks the latest block height or specific block details. It uses the network to stay synced with the current state.

AUDIT

Inspect transactions

The agent pulls specific receipts to confirm if a transaction succeeded. You get the exact status and logs for any hash.

EXECUTE

Call smart contracts

Your AI runs read-only calls to interact with contract functions. It returns the current state of any variable or mapping.

HUMAN

Manual review

The AI provides the raw data and logs. You decide if the transaction patterns or contract states require manual intervention.

The workflow

What your AI does when you ask for data.

The agent translates your questions into specific RPC requests.

  1. Check network status

    The agent identifies the current state of the Ethereum chain by checking the latest block.

    rpc_eth_blocknumber

  2. Query contract state

    Your AI executes a call to a specific address to read data from a smart contract.

    rpc_eth_call

  3. Monitor events

    The agent scans for specific event logs within a range of blocks.

    rpc_eth_getlogs

  4. Verify transactions

    The agent pulls the full receipt for a transaction hash to confirm its outcome.

    rpc_eth_gettransactionreceipt

Try it

Copy these to start.

Use these prompts to begin interacting with the blockchain.

Starting points

Swap the contract addresses and transaction hashes with your own data.

QuickNode Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_KXmcvaMCSZFRwuuczqPN4t4YGrO5deI8ZrCy4Zaq/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — QuickNode capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "quicknode-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_KXmcvaMCSZFRwuuczqPN4t4YGrO5deI8ZrCy4Zaq/mcp"
    }
  }
}
Copy into chat04

  • What is the current Ethereum block number?

  • Call the balance function on contract 0x123... and tell me the result.

  • Find all logs for the address 0xabc... from the last 100 blocks.

  • Get the receipt for transaction 0xdef... and tell me if it was successful.

  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Start here

Connect QuickNode once, then ask.

One connection gives your agent access to the Ethereum RPC. Your credentials stay encrypted and secure.

Connect QuickNode to your AI

FAQ

How this task behaves

  • 01

    Can my AI send transactions to the blockchain?

    No. This connector only performs read-only RPC calls to fetch data and query state.

  • 02

    Can the AI change the balance of a wallet?

    No. The tools are limited to reading data; they cannot execute state-changing transactions.

  • 03

    Does the AI need my private keys?

    No. Since the agent only performs read-only calls, it never needs access to your private keys.

  • 04

    Can I use this for other networks besides Ethereum?

    This specific connector is built for Ethereum-compatible RPC calls.

  • 05

    How does the AI handle large log sets?

    The AI uses the log tool to fetch data, then parses the results to answer your specific question.

  • More questions about QuickNode? See everything the QuickNode Connector can do

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