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Blockrun MCP Server

Developer ToolsUse Caution4.2MCP RegistryLocal
Free

Server data from the Official MCP Registry

Web search, deep research, prediction markets & crypto data for AI agents. Pay per call via x402.

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Web search, deep research, prediction markets & crypto data for AI agents. Pay per call via x402.

Security Report

4.2
Use Caution4.2High Risk

The visible BlockRun MCP source shows no data exfiltration, backdoors, or unsafe shell execution, and auth is handled through a wallet signature or BlockRun API key. The main concerns are that the server holds a signing key for real-money USDC and Polymarket trades, and that the spend cap is off by default (unlimited unless BLOCKRUN_BUDGET_LIMIT is set). Much of the code was truncated, so the wallet, signing, and trading internals could not be fully verified. Supply chain analysis found 7 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.

9 files analyzed · 12 issues found

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

What You'll Need

Set these up before or after installing:

Optional: EVM private key (0x-prefixed hex) for USDC payments on Base; also the Polymarket signer. If not set, a wallet is auto-generated.Required

Environment variable: BLOCKRUN_WALLET_KEY

Optional: Solana private key (bs58) for USDC payments on Solana. Setting it selects the Solana chain. If not set, a wallet is auto-generated.Required

Environment variable: SOLANA_WALLET_KEY

Optional: BlockRun account API key; bills your prepaid balance instead of a wallet (no per-call network fee). Takes priority over a wallet when set.Required

Environment variable: BLOCKRUN_API_KEY

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-blockrunai-blockrun-mcp": {
      "env": {
        "BLOCKRUN_API_KEY": "your-blockrun-api-key-here",
        "SOLANA_WALLET_KEY": "your-solana-wallet-key-here",
        "BLOCKRUN_WALLET_KEY": "your-blockrun-wallet-key-here"
      },
      "args": [
        "-y",
        "@blockrun/mcp"
      ],
      "command": "npx"
    }
  }
}

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