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Compare MCP servers

Compare scores, permissions, risks, and fit in one decision-focused table.

DimensionSupergatewayRun MCP stdio servers over SSE or WebSocket with one command.Context7Upstash's official server providing up-to-date third-party library docs for AI coding assistants
FMRS63 / 100 · C80 / 100 · B
Reliability10 / 2014 / 20
Security and permissions10 / 2016 / 20
Maintenance14 / 2017 / 20
Documentation15 / 2015 / 20
Setup experience14 / 2018 / 20
Best for
  • Developers who need to expose stdio MCP servers to web or remote clients.
  • Users who want to integrate remote MCP servers into local CLI tools or desktop apps like Claude Desktop or Cursor.
  • Users who want to quickly deploy an MCP proxy via Docker.
  • Developers using fast-moving frameworks/libraries worried about the AI suggesting stale code
  • Scenarios wanting zero-config documentation lookup
Not for
  • Users looking for MCP server management features (e.g., monitoring, auditing).
  • Users expecting zero configuration; they need to understand and set transport parameters.
  • Looking up internal/private codebase documentation (Context7 targets publicly published open-source libraries)
  • Cases needing very high coverage of obscure, niche libraries (coverage depends on what Context7's platform has indexed)
Required permissions
  • Executes arbitrary commands (via --stdio argument).
  • Network access: can listen on ports (--port) and connect to remote URLs.
  • May read and write file systems (depending on the proxied MCP server).
  • Usable without an API key (subject to a free-tier rate limit); CONTEXT7_API_KEY is an optional credential for higher quota
  • Read-only documentation lookup — no code execution or local filesystem access involved
Risks and side effects
  • Using --stdio to run arbitrary commands can be a security risk if the command source is untrusted.
  • Exposing an MCP server to the network without authentication (e.g., using --header or --oauth2Bearer) may allow unauthorized access.
  • Sensitive information (e.g., tokens) in configuration files may be exposed.
  • The free tier has limited quota — high-frequency use may hit rate limits
  • Documentation content comes from Context7's platform index, so its accuracy and freshness depend on that platform's crawl cadence
Supported clientsClaude Desktop, CursorClaude Code, VS Code, Cursor, Cline, Amp
Tools02