M2M Sentinel

Developer Tools npmStreamable HTTPSSE v1.2.5

Base bytecode capability observations, proxy resolution, gas, DEX, and transfer telemetry.

View source ↗ Website ↗ Generate config for multiple servers More servers

Install

Pin version registry version 1.2.5

npm
npx -y @m2msentinel/sdk

npm
npx -y @m2msentinel/sdk@1.2.5

Streamable HTTP
https://api.m2msentinel.com/mcp

SSE
https://api.m2msentinel.com/sse

Setup by client

Pick your client — the config below is generated for this server (both local and hosted-endpoint forms). Copy respects the “Pin version” switch above.

claude_desktop_config.json

{
  "mcpServers": {
    "m2m-sentinel-sdk": {
      "command": "npx",
      "args": [
        "-y",
        "@m2msentinel/sdk"
      ],
      "env": {
        "M2M_SENTINEL_API_KEY": "<YOUR_M2M_SENTINEL_API_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "m2m-sentinel-sdk": {
      "command": "npx",
      "args": [
        "-y",
        "@m2msentinel/sdk@1.2.5"
      ],
      "env": {
        "M2M_SENTINEL_API_KEY": "<YOUR_M2M_SENTINEL_API_KEY>"
      }
    }
  }
}

Remote (hosted) endpoint

https://api.m2msentinel.com/mcp

Claude Desktop: Settings → Connectors → Add custom connector, paste this URL, and provide: x-api-key, PAYMENT-SIGNATURE.

Format verified against the official Claude Desktop docs ↗.

terminal

claude mcp add --env M2M_SENTINEL_API_KEY=<YOUR_M2M_SENTINEL_API_KEY> m2m-sentinel-sdk -- npx -y @m2msentinel/sdk

claude mcp add --env M2M_SENTINEL_API_KEY=<YOUR_M2M_SENTINEL_API_KEY> m2m-sentinel-sdk -- npx -y @m2msentinel/sdk@1.2.5

terminal

claude mcp add --transport http m2m-sentinel-sdk https://api.m2msentinel.com/mcp --header "x-api-key: Bearer <YOUR_X_API_KEY>" --header "PAYMENT-SIGNATURE: Bearer <YOUR_PAYMENT_SIGNATURE>"

Format verified against the official Claude Code docs ↗.

.cursor/mcp.json

{
  "mcpServers": {
    "m2m-sentinel-sdk": {
      "command": "npx",
      "args": [
        "-y",
        "@m2msentinel/sdk"
      ],
      "env": {
        "M2M_SENTINEL_API_KEY": "<YOUR_M2M_SENTINEL_API_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "m2m-sentinel-sdk": {
      "command": "npx",
      "args": [
        "-y",
        "@m2msentinel/sdk@1.2.5"
      ],
      "env": {
        "M2M_SENTINEL_API_KEY": "<YOUR_M2M_SENTINEL_API_KEY>"
      }
    }
  }
}

.cursor/mcp.json (hosted endpoint)

{
  "mcpServers": {
    "m2m-sentinel-sdk": {
      "url": "https://api.m2msentinel.com/mcp",
      "headers": {
        "x-api-key": "<YOUR_X_API_KEY>",
        "PAYMENT-SIGNATURE": "<YOUR_PAYMENT_SIGNATURE>"
      }
    }
  }
}

Format verified against the official Cursor docs ↗.

.vscode/mcp.json

{
  "servers": {
    "m2m-sentinel-sdk": {
      "command": "npx",
      "args": [
        "-y",
        "@m2msentinel/sdk"
      ],
      "env": {
        "M2M_SENTINEL_API_KEY": "<YOUR_M2M_SENTINEL_API_KEY>"
      }
    }
  }
}

{
  "servers": {
    "m2m-sentinel-sdk": {
      "command": "npx",
      "args": [
        "-y",
        "@m2msentinel/sdk@1.2.5"
      ],
      "env": {
        "M2M_SENTINEL_API_KEY": "<YOUR_M2M_SENTINEL_API_KEY>"
      }
    }
  }
}

.vscode/mcp.json (hosted endpoint)

{
  "servers": {
    "m2m-sentinel-sdk": {
      "type": "http",
      "url": "https://api.m2msentinel.com/mcp",
      "headers": {
        "x-api-key": "<YOUR_X_API_KEY>",
        "PAYMENT-SIGNATURE": "<YOUR_PAYMENT_SIGNATURE>"
      }
    }
  }
}

Format verified against the official VS Code docs ↗.

mcp_config.json

{
  "mcpServers": {
    "m2m-sentinel-sdk": {
      "command": "npx",
      "args": [
        "-y",
        "@m2msentinel/sdk"
      ],
      "env": {
        "M2M_SENTINEL_API_KEY": "<YOUR_M2M_SENTINEL_API_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "m2m-sentinel-sdk": {
      "command": "npx",
      "args": [
        "-y",
        "@m2msentinel/sdk@1.2.5"
      ],
      "env": {
        "M2M_SENTINEL_API_KEY": "<YOUR_M2M_SENTINEL_API_KEY>"
      }
    }
  }
}

mcp_config.json (hosted endpoint)

{
  "mcpServers": {
    "m2m-sentinel-sdk": {
      "serverUrl": "https://api.m2msentinel.com/mcp",
      "headers": {
        "x-api-key": "<YOUR_X_API_KEY>",
        "PAYMENT-SIGNATURE": "<YOUR_PAYMENT_SIGNATURE>"
      }
    }
  }
}

Format verified against the official Windsurf docs ↗.

Environment variables

Defined in the server's official registry manifest. Required secrets are shown as <YOUR_…> placeholders in the configs above.

M2M_SENTINEL_API_KEY secret — Optional M2M Sentinel API key for prepaid access.
x-api-key secret header — Optional M2M Sentinel API key for prepaid access.
PAYMENT-SIGNATURE secret header — Optional x402 v2 payment signature when retrying a payable tool call.

GitHub

⭐ 2 stars · 最近更新于 23 天前 · MIT license

About this server

M2M Sentinel SDK & MCP Server Official multi language client library, Model Context Protocol (MCP) server , and Coinbase AgentKit ActionProvider for M2M Sentinel — deterministic EVM bytecode capability observations and common proxy resolution for autonomous applications operating on Base. Callers ow…

Summary from the project README — github.com/M2M-Sentinel/m2m-sentinel-sdk

Distributed as npm, Streamable HTTP, SSE, listed under Developer Tools. Review our MCP security guide before granting access to real data.

Frequently asked questions

What does the M2M Sentinel MCP server do?

How do I install M2M Sentinel?

Run the install command shown above, then paste the config for your client (Claude Desktop, Claude Code, Cursor, VS Code or Windsurf) into its MCP settings and restart the client.

Is M2M Sentinel free to use?

The MCP server itself is free to install. The source is public on https://github.com/M2M-Sentinel/m2m-sentinel-sdk. Any third-party service it calls may require its own API key and account.

Which clients support M2M Sentinel?

Any MCP-compatible client can use it, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf and custom agents.

Add this badge

Publish this server? Link back with a badge on your README or site — copy either snippet.

Markdown

[![Listed on MCPNav](https://mcpnav.net/badge/m2m-sentinel-sdk.svg)](https://mcpnav.net/server/m2m-sentinel-sdk/)

HTML

<a href="https://mcpnav.net/server/m2m-sentinel-sdk/"><img src="https://mcpnav.net/badge/m2m-sentinel-sdk.svg" alt="Listed on MCPNav" height="20"></a>