| FMRS | 32 / 100 · D | 80 / 100 · B | 79 / 100 · B |
|---|
| Reliability | 4 / 20 | 14 / 20 | 12 / 20 |
|---|
| Security and permissions | 5 / 20 | 16 / 20 | 16 / 20 |
|---|
| Maintenance | 10 / 20 | 17 / 20 | 18 / 20 |
|---|
| Documentation | 5 / 20 | 15 / 20 | 18 / 20 |
|---|
| Setup experience | 8 / 20 | 18 / 20 | 15 / 20 |
|---|
| Best for | - Developers building SceneView 3D/AR apps (Android, iOS, Web) who already use or want to adopt Rerun.io for debugging.
- Teams that need replayable AR session evidence for bug reports and post-mortem analysis.
- Debugging scenarios that combine SceneView AR poses, planes, and cloud anchors with Rerun's timeline visualization.
| - 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
|
|---|
| Not for | - Projects not using SceneView or Rerun.
- End users of a released application (this is a debugging tool, not a user-facing feature).
- Teams that require an officially maintained Rerun.io MCP server and do not accept a community-maintained implementation.
| - 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
|
|---|
| Required permissions | - No dedicated permission list is published in the source material.
- Based on the described features, the server may fetch and execute the npm package and its dependencies via npx.
- It may launch local Python sidecar processes (Rerun SDK).
- It may write local .rrd recording files and may start or interact with a local web viewer instance.
| - 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
|
|---|
| Risks and side effects | - The server is community-maintained by SceneView, not by Rerun.io, so standard supply-chain and local-execution risks apply.
- The npm package and its dependencies may introduce third-party code; pin the version and review the published package before relying on it.
- The server may process AR session data, so avoid using it with sensitive data in unfamiliar environments.
- If Python sidecar dependencies are missing, features may fail, and errors may only appear in client logs.
| - 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
|
|---|
| Supported clients | Claude Desktop, Claude Code, Cursor, Windsurf | Claude Code, VS Code, Cursor, Cline, Amp | Claude Desktop, VS Code, Cursor |
|---|
| Tools | 0 | 2 | 19 |
|---|