| FMRS | 59 / 100 · C | 80 / 100 · B | 79 / 100 · B |
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| Reliability | 9 / 20 | 14 / 20 | 12 / 20 |
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| Security and permissions | 11 / 20 | 16 / 20 | 16 / 20 |
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| Maintenance | 12 / 20 | 17 / 20 | 18 / 20 |
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| Documentation | 14 / 20 | 15 / 20 | 18 / 20 |
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| Setup experience | 13 / 20 | 18 / 20 | 15 / 20 |
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| Best for | - Users who already have a Google AI Pro/Ultra subscription and the agy CLI installed
- Developers who want an independent review from a different vendor's model
- One-shot, quota-backed second-opinion calls without metered API billing
| - Developers using fast-moving frameworks/libraries worried about the AI suggesting stale code
- Scenarios wanting zero-config documentation lookup
| - Developers auditing NPM dependencies within AI workflows
- Teams performing supply chain security assessments
- Users of Claude Desktop, Cursor, or VS Code
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| Not for | - Environments without the Antigravity CLI (agy) installed and authenticated
- Workflows needing multi-turn sessions or session resume (this server is one-shot)
- Production-critical flows requiring stable, non-experimental guarantees
- Users who cannot send code to Google models (use the Ollama server for fully local runs)
| - 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)
| - Projects outside the NPM ecosystem (e.g., pure Python/Go)
- Environments without network access to deps.dev, OSV.dev, and the npm registry
- Scenarios requiring maintenance by an official upstream vendor
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| Required permissions | - Spawn the agy CLI (Antigravity CLI) process on the host machine
- Use the locally stored Google AI Pro/Ultra credentials and subscription quota
- Read code and file context passed in as prompt content (sandbox on by default; reading directories via --add-dir may require setting ASK_ANTIGRAVITY_SANDBOX=0)
- Write local logs and npm cache
| - 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
| - Network access to the NPM registry and external services (deps.dev, OSV.dev, OpenSSF, npms.io, GitHub)
- Read access to workspace lockfiles (pnpm-lock.yaml, package-lock., yarn.lock) for cache invalidation
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| Risks and side effects | - Reviewed code is sent to Google's Antigravity service, which may expose sensitive information
- Sandbox is on by default; setting ASK_ANTIGRAVITY_SANDBOX=0 to read context reduces that isolation
- The server is experimental and one-shot, and behavior or quota may change upstream
- Long runs may time out (default 5 minutes), especially with large context reads
- Subscription quota may be consumed or rate-limited
- It is an unofficial third-party tool with no affiliation to Google or Anthropic
| - 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
| - Third-party READMEs and changelogs are untrusted external content; they are wrapped in tags with _meta flags but should still be handled cautiously
- Depends on availability and accuracy of external services
- Batch requests are capped at 25 packages to prevent registry enumeration; larger sets require batching
- Third-party open source project, not officially maintained by NPM or Anthropic
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| Supported clients | Claude Code, Cursor, Codex, Claude Desktop | Claude Code, VS Code, Cursor, Cline, Amp | Claude Desktop, VS Code, Cursor |
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| Tools | 1 | 2 | 19 |
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