| 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 | - Teams developing Unity projects with Claude Code, Cursor, or Windsurf
- Developers who want to avoid AI-invented Unity API signatures
- Projects on Unity 6, Unity 2023, or Unity 2022 LTS
- AI-assisted workflows that want to reduce source-file reads, saving context and tokens
| - 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 | - Users who need third-party assets like DOTween, VContainer, or Newtonsoft.Json (not indexed)
- Developers using Unreal Engine or non-Unity engines
- Environments with Python below 3.10
- Anyone needing official Unity support (this is an independent third-party project)
| - 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 | - Read access to local MCP configuration files
- Network access on first run to download the database (~20-30 MB)
- Read/write access to ~/.unity-api-mcp/ to cache databases
- Optional UNITY_PROJECT_PATH reads ProjectSettings/ProjectVersion.txt inside the project
- Optional UNITY_INSTALL_PATH is used only for local database building (ingest) to locate the Unity install
| - 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 | - First run or database updates require internet access; without it you must build the database locally
- The downloaded database is ~20-30 MB and occupies local disk space
- An incorrect UNITY_VERSION can cause API docs for the wrong version to be served
- Databases are rebuilt weekly by CI, so version coverage may lag the newest Unity release
- Third-party packages are not indexed and return no results
| - 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, Windsurf | Claude Code, VS Code, Cursor, Cline, Amp | Claude Desktop, VS Code, Cursor, Smithery.ai |
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| Tools | 5 | 2 | 19 |
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