LocalPaid service

402sentinel MCP server

kaditang/402sentinel-mcp

DEPRECATED: hosted 402Sentinel retired 2026-10-31. Client for x402 payment-safety checks.

1 GitHub stars
Source code

Install 402sentinel in Claude Code

Claude Code
claude mcp add 402sentinel -e CLIENT_PRIVATE_KEY=... -e SENTINEL_URL=... -- npx -y @kaditang/402sentinel-mcp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "402sentinel": {
      "command": "npx",
      "args": [
        "-y",
        "@kaditang/402sentinel-mcp"
      ],
      "env": {
        "CLIENT_PRIVATE_KEY": "...",
        "SENTINEL_URL": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the 402sentinel MCP server do?

DEPRECATED: hosted 402Sentinel retired 2026-10-31. Client for x402 payment-safety checks.

Is the 402sentinel MCP server free?

Probably not entirely. The listing mentions pay-per-call, credits or a subscription. Check the provider for current pricing.

Does 402sentinel run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add 402sentinel to Claude Code?

Run: claude mcp add 402sentinel -e CLIENT_PRIVATE_KEY=... -e SENTINEL_URL=... -- npx -y @kaditang/402sentinel-mcp

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