How do I install Nodeflare?

Nodeflare is a local plugin. Install it using npm package: nodeflare-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is Nodeflare safe to use?

Nodeflare was flagged by MCP Marketplace's security scan, scoring 4.8/10 (high risk). It has 3 high or critical findings to review. Review the security report on this page carefully before installing it.

What credentials does Nodeflare need?

Nodeflare requires the following credentials or environment variables: NODEFLARE_API_KEY, X402_PRIVATE_KEY. You can find setup instructions on the server detail page.

What AI apps work with Nodeflare?

Nodeflare uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

Back to Browse

Nodeflare MCP Server

by BabyScope

Developer ToolsUse Caution4.8MCP RegistryLocal

Free

Server data from the Official MCP Registry

Blockchain JSON-RPC on 23 EVM chains for AI agents - free tier, API key, or x402 pay-per-call.

About

Blockchain JSON-RPC on 23 EVM chains for AI agents - free tier, API key, or x402 pay-per-call.

Security Report

4.8

Use Caution4.8High Risk

This is a well-structured MCP server for blockchain RPC access with appropriate authentication and authorization patterns. The server implements three access tiers (free public, API key, and x402 pay-per-call) with sensible fallback logic. Minor code quality issues around error handling and private key validation exist, but do not constitute security vulnerabilities. Permissions align well with the server's purpose. Supply chain analysis found 3 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.

3 files analyzed · 8 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

env_vars

Check that this permission is expected for this type of plugin.

HTTP Network Access

Connects to external APIs or services over the internet.

What You'll Need

Set these up before or after installing:

Optional NodeFlare API key (free at nodeflare.app) — unlocks heavy methods and higher limitsRequired

Environment variable: NODEFLARE_API_KEY

Optional EVM private key of a wallet holding USDC on Base/Polygon/Arbitrum — heavy methods are paid per call (~$0.001) via x402Required

Environment variable: X402_PRIVATE_KEY

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-babyscope-nodeflare-mcp": {
      "env": {
        "X402_PRIVATE_KEY": "your-x402-private-key-here",
        "NODEFLARE_API_KEY": "your-nodeflare-api-key-here"
      },
      "args": [
        "-y",
        "nodeflare-mcp"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

NodeFlare MCP Server

Blockchain JSON-RPC for AI agents on 23 EVM chains — Ethereum, Base, BNB Chain, Arbitrum, Optimism, Avalanche, HyperEVM, Polygon, and young chains like Robinhood Chain, Plasma, Ink, Zircuit, BOB and Soneium. Served from NodeFlare's own bare-metal nodes across 5 regions.

Quick start

{
  "mcpServers": {
    "nodeflare": {
      "command": "npx",
      "args": ["-y", "nodeflare-mcp"]
    }
  }
}

That's it — no API key required for standard reads (block numbers, balances, transactions, eth_call).

Access tiers

The server picks its access tier from the environment:

Env var	Tier
(none)	Free public endpoints — standard read methods, rate-limited per IP
`NODEFLARE_API_KEY`	Free/paid key — heavy methods, 3,000,000 compute units/month free (get one)
`X402_PRIVATE_KEY`	Pay per call with x402 — heavy methods (`eth_getLogs`, `trace_`, `debug_`) are paid from this wallet in USDC on Base, Polygon or Arbitrum, ~$0.001/call. No account needed; gas is covered by the facilitator.

With an x402 wallet, a blocked heavy method is retried automatically as a paid call — the tool result includes "_x402": "settled via x402" when a payment settled on-chain.

{
  "mcpServers": {
    "nodeflare": {
      "command": "npx",
      "args": ["-y", "nodeflare-mcp"],
      "env": { "X402_PRIVATE_KEY": "0x…" }
    }
  }
}

Use a dedicated agent wallet holding a small USDC balance — never your main wallet.

Tools

Tool	Description
`list_chains`	The 23 supported chains with chain IDs and endpoints
`get_block_number`	Latest block number
`get_balance`	Native-token balance of an address
`get_transaction_receipt`	Transaction receipt by hash
`eth_call`	Read-only contract call
`get_logs`	Contract event logs (heavy — key or x402 wallet)
`rpc_call`	Any JSON-RPC method on any supported chain
`get_transaction`	Transaction by hash (from, to, value, input)
`get_block`	Block by number/tag, optional full transactions
`get_gas_price`	Current gas price + EIP-1559 priority fee
`get_token_balance`	ERC-20 balance, raw + human-readable
`get_token_metadata`	ERC-20 name, symbol, decimals, total supply

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Nodeflare MCP Server

About

Security Report

Findings (8)Action required

Permissions Required

What You'll Need

How to Install

Documentation

NodeFlare MCP Server

Quick start

Access tiers

Tools

Links

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