How to Use the Infura (Ethereum Node RPC Provider) MCP in Cursor

Q: How do I configure the Infura (Ethereum Node RPC Provider) MCP Server in Cursor?

Add the server to your .cursor/mcp.json file under the mcpServers object. Pass your Infura API key as an environment variable in the command arguments. Once saved, Cursor Agent mode will automatically detect and use the Ethereum tools.

Q: Can I query historical block data using Infura (Ethereum Node RPC Provider) in Cursor?

Yes, you can search any historical block. The agent uses ethgetBlockByNumber or ethgetBlockByHash to fetch block details, including transaction lists and timestamp data. This is great for writing indexing scripts.

Q: How does the agent track transaction nonces to prevent collisions?

The agent calls ethgetTransactionCount to find the next valid nonce for any address. This ensures that any raw transactions you prepare have the correct sequence number before broadcasting.

Generate code with real-time Ethereum chain data using the Infura MCP Server in Cursor.

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Connect Infura (Ethereum Node RPC Provider) MCP to Cursor

Create your Vinkius account to connect Infura (Ethereum Node RPC Provider) to Cursor and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Infura (Ethereum Node RPC Provider) with Cursor

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Claude

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Inject real-time blockchain state into Cursor

This tool suite pulls live mainnet data into your active coding environment so you can write smart contract integrations with real state instead of mock stubs. Your agent queries contract states using `eth_call` and verifies deployed code with `eth_getCode` while you build. The agent uses these live responses to generate typed interfaces and contract wrappers. This means your generated code matches the actual on-chain reality, saving hours of manual testing.

Debug transaction failures inside the editor

This tool suite retrieves exact transaction receipts and historical logs directly into your workspace when a local test fails. It inspects the execution logs via `eth_getLogs` to pinpoint exactly where the transaction reverted. You do not need to keep a browser tab open to an explorer. The raw receipt metrics are loaded straight into your editor context, letting the agent suggest instant fixes.

Estimate gas fees for deployment scripts

This tool suite calculates accurate transaction limits and gas fees for your deployment scripts inside Cursor. Your agent runs `eth_estimateGas` and `eth_gasPrice` to calculate current network congestion and recommend gas limits. It uses `eth_feeHistory` to check historical base fees, ensuring your deployment scripts do not get stuck in the mempool. You get realistic cost projections during your active coding session.

Setup guide

Set up Infura (Ethereum Node RPC Provider) MCP in Cursor

Prerequisites

Cursor installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP Settings

Go to Cursor Settings → MCP or open the Command Palette (Cmd+Shift+P / Ctrl+Shift+P) and search for "MCP: Add Server".
2

Add the Infura (Ethereum Node RPC Provider) MCP

Cursor will create or open .cursor/mcp.json in your project root. Paste the JSON snippet on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Enable Agent mode

Open Composer (Cmd+I / Ctrl+I) and switch to Agent mode using the dropdown at the top. MCP tools are only available in Agent mode.
4

Verify the connection

Ask Cursor something like "List my recent Infura (Ethereum Node RPC Provider) transactions." If the MCP tools are loaded correctly, Cursor will call the Infura (Ethereum Node RPC Provider) tools automatically. You can also check Settings → MCP for a green status indicator.

.cursor/mcp.json

{
  "mcpServers": {
    "infura-ethereum-node-rpc-provider-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

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Common questions about Infura (Ethereum Node RPC Provider) MCP in Cursor

Add the server to your `.cursor/mcp.json` file under the `mcpServers` object. Pass your Infura API key as an environment variable in the command arguments. Once saved, Cursor Agent mode will automatically detect and use the Ethereum tools.

No, this MCP server does not manage private keys at all. To send transactions, you must sign them locally and pass the signed hex to `eth_sendRawTransaction`. Your keys never touch the network or the editor's AI context.

Yes, you can search any historical block. The agent uses `eth_getBlockByNumber` or `eth_getBlockByHash` to fetch block details, including transaction lists and timestamp data. This is great for writing indexing scripts.

The agent calls `eth_getTransactionCount` to find the next valid nonce for any address. This ensures that any raw transactions you prepare have the correct sequence number before broadcasting.

The server only transmits standard JSON-RPC payloads like wallet addresses, transaction hashes, and block numbers to Infura. Your queries are sandboxed locally within your editor. No sensitive project files or codebase contents are sent to the RPC provider.

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