"Understanding Proxies or Proxy Servers" matching MCP connectors:

Runs your code against a contract; returns HELD or BROKE at the exact input. Deterministic.

Go module proxy — module info, versions, go.mod

295k+ bug-fix patterns with MCP Hub proxy, PII filtering, and code search

Audits MCP tool definitions for patterns that make models call tools wrong or mis-fill args.

MCP server for understanding Javascript internals from ECMAScript specification.

Compare two JSON files deeply without worrying about key or array order. Detect missing, extra, an…