io.github.kaditang/402sentinel-mcp

Is the io.github.kaditang/402sentinel-mcp MCP server down? Yes. It has given no valid answer since 2026-10-18: crashed on start.

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

crashed on start down since 2026-10-18 · probed 2026-11-15 · unchanged since 2026-11-01

MCP error -32000: Connection closed
Error: invalid private key, expected hex or 32 bytes, got string
    at ModuleJob.run (node:internal/modules/esm/module_job:

Run it: npx -y @kaditang/402sentinel-mcp@0.9.0 (stdio, probed in a container with the network off)
Host: npmjs.com
Repository: https://github.com/kaditang/402sentinel-mcp
Registry: active, updated 2026-10-19 · registry entry

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Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.

For the publisher

No valid answer since 2026-10-18, in every probe since then.
The process exited on start before it answered initialize. The error output is above.