Blockrun

v0.6.9Finance & Fintechstable

📇 ☁️ 🍎 🪟 🐧 - Access 30+ AI models (GPT-5, Claude, Gemini, Grok, DeepSeek) without API keys. Pay-per-use via x402 micropayments with USDC on Base.

aiclaude-codellmmcpmcp-server
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What is Blockrun?

Blockrun is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to 📇 ☁️ 🍎 🪟 🐧 - access 30+ ai models (gpt-5, claude, gemini, grok, deepseek) without api keys. pay-per-use via x402 micropayments with usdc on base.

📇 ☁️ 🍎 🪟 🐧 - Access 30+ AI models (GPT-5, Claude, Gemini, Grok, DeepSeek) without API keys. Pay-per-use via x402 micropayments with USDC on Base.

This server falls under the Finance & Fintech category on MCPgee, the world's largest MCP server directory with 33,000+ servers.

Features

  • 📇 ☁️ 🍎 🪟 🐧 - Access 30+ AI models (GPT-5, Claude, Gemini, Gr

Use Cases

30+ AI model access without keys
USDC micropayment integration
Base blockchain payments
BlockRunAI

Maintainer

LicenseMIT
Languagetypescript
Versionv0.6.9
UpdatedMay 21, 2026
Statushealthy
Maintenanceactive

Works with

ClaudeOpenAIwindowsmacoslinux

Installation

NPM

npx -y @blockrun/mcp

Manual Installation

npx -y @blockrun/mcp

Configuration

Configuration Details

Config File

claude_desktop_config.json

Performance

Response Metrics

Response Time< 200ms
ThroughputMedium

Resource Usage

Memory UsageLow
CPU UsageLow

How to Set Up and Use Blockrun

Blockrun MCP gives AI assistants access to over 66 AI models and a wide set of blockchain and financial data tools — all without individual API keys. It uses x402 micropayments with USDC on the Base blockchain (and optionally Solana) to pay for each tool call, so you only pay for what you use. Tools cover AI chat routing, prediction markets (Polymarket, Kalshi), neural web search, real-time crypto prices, image and video generation, text-to-speech, DeFi analytics via DefiLlama, on-chain RPC calls across 40+ chains, and CEX/DEX data.

Prerequisites

  • Node.js 18 or higher installed
  • An MCP client such as Claude Code, Claude Desktop, Cursor, or Windsurf
  • Approximately $5 USDC on Base blockchain (or Solana) to fund micropayments — wallet is auto-created on first run
  • No other API keys required
1

Add Blockrun to Claude Code (quickest method)

For Claude Code, the mcp add command is the fastest way to install and configure Blockrun at the user level.

claude mcp add blockrun -s user -- npx -y @blockrun/mcp@latest
2

Or add to claude_desktop_config.json for Claude Desktop

If using Claude Desktop, add the server entry to your config file. No environment variables are required — the wallet is created automatically.

3

Start the server and set up your wallet

On first run, Blockrun creates a ~/.blockrun/.session file containing your EVM private key. Run the setup tool to get your wallet address and funding instructions.

npx -y @blockrun/mcp@latest
4

Fund your wallet with USDC on Base

Ask your AI assistant to run the wallet setup tool to get your deposit address, then send USDC on the Base network to that address. The minimum practical amount is around $5.

5

Verify tools are available

Ask your AI assistant to list the available Blockrun tools to confirm the server is connected and your wallet is funded.

Blockrun Examples

Client configuration

Add this to your claude_desktop_config.json. No API keys or environment variables needed — wallet credentials are stored locally.

{
  "mcpServers": {
    "blockrun": {
      "command": "npx",
      "args": ["-y", "@blockrun/mcp@latest"]
    }
  }
}

Prompts to try

Once Blockrun is connected and your wallet is funded, try these prompts.

- "What is Polymarket saying about the probability of a Fed rate cut next month?"
- "Generate an image of a retro-futuristic city at night in 4K quality."
- "Search for recent research papers on speculative decoding in LLMs."
- "What is the current price of ETH/USD and show me the last 24h OHLC data?"
- "Check the TVL and top yield opportunities on DefiLlama for the Base network."
- "What is the USDC balance of my Blockrun wallet?"

Troubleshooting Blockrun

Tool calls fail with insufficient funds error

Ask your assistant to run 'blockrun_wallet action:"balance"' to check your current balance, then fund your wallet with more USDC on the Base network using the address shown.

Wallet session file not found or wallet not created

The ~/.blockrun/.session file is created automatically on first run. If it is missing, re-run 'npx -y @blockrun/mcp@latest' once directly in your terminal to initialise it.

Solana tools not working or wrong chain being used

Chain selection priority is: ~/.blockrun/.chain file, then SOLANA_WALLET_KEY environment variable, then ~/.blockrun/.solana-session, then Base (default). Create ~/.blockrun/.chain with the content 'solana' to force Solana mode.

Frequently Asked Questions about Blockrun

What is Blockrun?

Blockrun is a Model Context Protocol (MCP) server that 📇 ☁️ 🍎 🪟 🐧 - access 30+ ai models (gpt-5, claude, gemini, grok, deepseek) without api keys. pay-per-use via x402 micropayments with usdc on base. It connects AI assistants to external tools and data sources through a standardized interface.

How do I install Blockrun?

Install via npm with the command: npx -y @blockrun/mcp. Then add the server configuration to your AI client's JSON config file (e.g., claude_desktop_config.json or .cursor/mcp.json).

Which AI clients work with Blockrun?

Blockrun works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.

Is Blockrun free to use?

Yes, Blockrun is open source and available under the MIT license. You can use it freely in both personal and commercial projects.

Browse More Finance & Fintech MCP Servers

Explore all finance & fintech servers available in the MCPgee directory. Each server includes setup guides for Claude, Cursor, and VS Code.

Quick Config Preview

{ "mcpServers": { "blockrun": { "command": "npx", "args": ["-y", "@blockrun/mcp"] } } }

Add this to your claude_desktop_config.json or .cursor/mcp.json

Read the full setup guide →

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