M2M Sentinel

Remote (streamable-http)

https://api.m2msentinel.com/mcp Reachable (checked 2026-09-24)

Claude Code:

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

Or add to your MCP client config:

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

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

Remote (sse)

https://api.m2msentinel.com/sse Reachable (checked 2026-09-24)

Claude Code:

claude mcp add --transport sse m2m-sentinel-sdk https://api.m2msentinel.com/sse --header "x-api-key: <YOUR_VALUE>"

Or add to your MCP client config:

{
  "mcpServers": {
    "m2m-sentinel-sdk": {
      "url": "https://api.m2msentinel.com/sse",
      "headers": {
        "x-api-key": "<YOUR_VALUE>"
      }
    }
  }
}

• x-api-key secret — Optional M2M Sentinel API key for prepaid access.

Package (npm 1.2.5)

npx -y @m2msentinel/sdk@1.2.5

Or add to your MCP client config:

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

• M2M_SENTINEL_API_KEY secret — Optional M2M Sentinel API key for prepaid access.