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DimensionIronCurtainA secure runtime for autonomous AI agents, with policy from plain-English constitutions.Context7Upstash's official server providing up-to-date third-party library docs for AI coding assistants
FMRS52 / 100 · D80 / 100 · B
Reliability8 / 2014 / 20
Security and permissions5 / 2016 / 20
Maintenance15 / 2017 / 20
Documentation14 / 2015 / 20
Setup experience10 / 2018 / 20
Best for
  • Developers and users who need strict security policies for AI agents
  • Teams that want to define security boundaries in natural language without sacrificing autonomy
  • Security researchers running agents in untrusted environments
  • Developers using fast-moving frameworks/libraries worried about the AI suggesting stale code
  • Scenarios wanting zero-config documentation lookup
Not for
  • Scenarios where no security policy is needed and the agent can run freely
  • Simple tasks requiring minimal permissions or no external dependencies
  • Users who want out-of-the-box functionality without understanding the security model
  • 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
  • Requires access to filesystem, network, API keys, etc., for file and network operations
  • Requires Docker for Docker agent mode, providing strongest isolation
  • Requires an LLM API key (Anthropic, Google, or OpenAI)
  • 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
  • Research prototype: APIs and configuration formats may change
  • Policy compilation may misinterpret intent; always review compiled rules
  • V8 isolate boundaries are not OS-level; a V8 zero-day could allow escape
  • In Docker mode, approved domains get raw passthrough tunnels without content inspection
  • 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 Code, VS Code, Cursor, Cline, Amp
Tools02