io.github.kaditang/402sentinel-mcp

io.github.kaditang/402sentinel-mcp

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

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "402sentinel-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@kaditang/402sentinel-mcp@0.9.0"
      ],
      "env": {
        "CLIENT_PRIVATE_KEY": "<your CLIENT_PRIVATE_KEY>",
        "SENTINEL_URL": "<your SENTINEL_URL>"
      }
    }
  }
}
Environment variables
  • CLIENT_PRIVATE_KEYrequiredsecretA Base wallet holding USDC on-chain (no gas needed) — pays per call, from $0.002.
  • SENTINEL_URLrequiredRequired since 0.9.0 (the hosted service was retired on 2026-10-31): base URL of a 402Sentinel server you trust. 402sentinel.com is refused.

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
0.9.0
Registry
active
Published
10/19/2026

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