How to install blockrun-mcp in Gemini CLI

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Steps

1Install Node.js 18 or newer (for npx)
2Open ~/.gemini/settings.json (or .gemini/settings.json in your project)
3Add the entry below. If the file already has "mcpServers", add just the inner entry
4Restart Gemini CLI and run /mcp to confirm

Configuration

~/.gemini/settings.json

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

Environment variable	Required	What it is
BLOCKRUN_WALLET_KEYsecret	No	Optional: EVM private key (0x-prefixed hex) for USDC payments on Base; also the Polymarket signer. If not set, a wallet is auto-generated.
SOLANA_WALLET_KEYsecret	No	Optional: Solana private key (bs58) for USDC payments on Solana. Setting it selects the Solana chain. If not set, a wallet is auto-generated.
BLOCKRUN_API_KEYsecret	No	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.

Install in other clients

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