| FMRS | 63 / 100 · C | 80 / 100 · B | 79 / 100 · B |
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| Reliability | 10 / 20 | 14 / 20 | 12 / 20 |
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| Security and permissions | 11 / 20 | 16 / 20 | 16 / 20 |
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| Maintenance | 13 / 20 | 17 / 20 | 18 / 20 |
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| Documentation | 15 / 20 | 15 / 20 | 18 / 20 |
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| Setup experience | 14 / 20 | 18 / 20 | 15 / 20 |
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| Best for | - Developers who want memory to stay entirely local instead of depending on a cloud vector database
- Users who switch between multiple MCP clients and need context to carry over
- Agent users who need code-structure awareness and change-impact analysis
- Self-hosters comfortable running a Python package or Docker container
| - 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 | - Teams that require an officially hosted cloud service or SLA
- Pure API integrations that do not use an MCP client
- Restricted environments that cannot run local processes or containers
- Users expecting a fully managed zero-configuration cloud product
| - 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/write access to the local data directory (default ~/.marm/, or %USERPROFILE%\.marm\ on Windows) holding the SQLite memory database, index database, and logs
- HTTP mode binds to localhost:8001 by default and can be exposed to the network with SERVER_HOST=0.0.0.0
- Docker deployments need a mounted data volume, and code indexing needs read-only repo mounts
- Network access on first code-graph use to download the graph engine binary (~269MB, one time)
- Docker HTTP mode requires a MARM_API_KEY environment variable for Bearer authentication
| - 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 | - Exposing the HTTP port with SERVER_HOST=0.0.0.0 without a firewall and TLS proxy can leave memory data reachable by unauthorized parties
- Memories and code index data are stored as plaintext SQLite files that any process able to read the directory can access
- In Docker, code-graph tools can only see mounted container paths; using host paths causes index failures
- Enabling write-time consolidation (CONSOLIDATION_ENABLED=1) raises median write cost from about 6.5ms to 58.1ms
- Recall latency temporarily increases while the concept-graph backlog drains (measured about 8ms to 16ms median on a real corpus)
- Graph tools degrade with an error if the graph engine fails to start, for example with no network on first download, a full disk, or schema drift
| - 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, VS Code / GitHub Copilot Agent, Cursor, Codex CLI, Gemini CLI, Qwen Code, xAI / Grok Remote MCP | Claude Code, VS Code, Cursor, Cline, Amp | Claude Desktop, VS Code, Cursor, Smithery.ai |
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| Tools | 14 | 2 | 19 |
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