PluginBench
MCP Server

io.github.evidai/polymarket-guard MCP Server

io.github.evidai/polymarket-guard

RepositoryRegistry

What is the io.github.evidai/polymarket-guard MCP server?

Polymarket prediction markets — buy/sell positions in USDC. LemonCake pay-per-call billing.

How to install io.github.evidai/polymarket-guard

Copy-paste configuration for popular MCP clients.

transport: stdio
Config generated by PluginBench — verify against the source before use.
Environment / auth
  • POLYMARKET_PRIVATE_KEY
    secret

    Polygon wallet private key for trading. Leave unset for read-only mode.

  • LEMON_CAKE_BUYER_JWT
    secret

    LemonCake Buyer JWT for pay-per-call billing.

Claude Desktop
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "polymarket-guard": {
      "command": "npx",
      "args": [
        "-y",
        "polymarket-guard-mcp"
      ],
      "env": {
        "POLYMARKET_PRIVATE_KEY": "<YOUR_POLYMARKET_PRIVATE_KEY>",
        "LEMON_CAKE_BUYER_JWT": "<YOUR_LEMON_CAKE_BUYER_JWT>"
      }
    }
  }
}
Cursor
~/.cursor/mcp.json
{
  "mcpServers": {
    "polymarket-guard": {
      "command": "npx",
      "args": [
        "-y",
        "polymarket-guard-mcp"
      ],
      "env": {
        "POLYMARKET_PRIVATE_KEY": "<YOUR_POLYMARKET_PRIVATE_KEY>",
        "LEMON_CAKE_BUYER_JWT": "<YOUR_LEMON_CAKE_BUYER_JWT>"
      }
    }
  }
}
Windsurf
~/.codeium/windsurf/mcp_config.json
{
  "mcpServers": {
    "polymarket-guard": {
      "command": "npx",
      "args": [
        "-y",
        "polymarket-guard-mcp"
      ],
      "env": {
        "POLYMARKET_PRIVATE_KEY": "<YOUR_POLYMARKET_PRIVATE_KEY>",
        "LEMON_CAKE_BUYER_JWT": "<YOUR_LEMON_CAKE_BUYER_JWT>"
      }
    }
  }
}
VS Code
.vscode/mcp.json
{
  "servers": {
    "polymarket-guard": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "polymarket-guard-mcp"
      ],
      "env": {
        "POLYMARKET_PRIVATE_KEY": "<YOUR_POLYMARKET_PRIVATE_KEY>",
        "LEMON_CAKE_BUYER_JWT": "<YOUR_LEMON_CAKE_BUYER_JWT>"
      }
    }
  }
}
Claude Code
claude mcp add polymarket-guard --env POLYMARKET_PRIVATE_KEY=<YOUR_POLYMARKET_PRIVATE_KEY> --env LEMON_CAKE_BUYER_JWT=<YOUR_LEMON_CAKE_BUYER_JWT> -- npx -y polymarket-guard-mcp

Related MCP servers

io.github.evidai/agent-payment

Stripe-style USDC billing for any API. 8 free demo services no signup. Non-custodial.

View repository →

io.github.evidai/alpaca-guard

Alpaca trading API with hard daily USD cap guard. Paper trading default; live opt-in.

View repository →

io.github.evidai/tokenized-stock

Buy/sell tokenized US stocks (Dinari dShares) in USDC. Daily USD cap guard. Sandbox default.

View repository →

io.github.evidai/xstocks

Buy tokenized US stocks (xStocks) on Solana via Jupiter DEX in USDC. Daily cap. Dry-run default.

View repository →