MCP Server Catalog
Reference list of MCP servers by category. For which ones to actually use, see the adoption radar and team profiles.
Official Reference Servers
Maintained by Anthropic as implementation examples. Production-ready.
| Server | Category | What it gives agents |
|---|---|---|
| Filesystem | File access | Read/write local files with configurable access controls |
| Git | Version control | Read, search, and manipulate Git repositories |
| GitHub | Code + repos | Repository management, PRs, issues, GitHub API |
| GitLab | Code + repos | GitLab project management and API |
| PostgreSQL | Database | Read-only access with schema inspection |
| SQLite | Database | Database interaction and business intelligence |
| Fetch | Web | Web content fetching and conversion for LLM use |
| Brave Search | Search | Web and local search via Brave API |
| Google Drive | Cloud storage | File access and search in Google Drive |
| Google Maps | Location | Directions, place details, location services |
| Slack | Comms | Channel management and messaging |
| GitHub | Code | File operations and GitHub API integration |
| Memory | Agent memory | Knowledge graph-based persistent memory |
| Sentry | Observability | Issue retrieval and analysis from Sentry |
| Sequential Thinking | Reasoning | Dynamic problem-solving through thought sequences |
| Puppeteer | Browser | Browser automation and web scraping |
| EverArt | Image gen | AI image generation via multiple models |
| AWS KB Retrieval | Knowledge | Retrieval from AWS Knowledge Base via Bedrock |
| Time | Utilities | Time and timezone conversion |
Full list and source code: github.com/modelcontextprotocol/servers
Community Servers (Selected)
Production-validated by the MCP ecosystem. 2,000+ servers available in the registry.
| Server | Category | Why teams use it |
|---|---|---|
| Supabase MCP | Database | Direct DB access + built-in schema visualizer |
| Perplexity MCP | Research | Three search modes: fast, analytical, deep research |
| Context7 | Documentation | Up-to-date library docs — prevents hallucinated APIs |
| Claude in Chrome | Browser | Full browser control, screenshots, form interaction |
| Firecrawl | Web scraping | Structured extraction, 96% success rate, JS rendering |
| Google Analytics MCP | Analytics | Direct GA4 account discovery, report runs, realtime data access |
| Exa Search | Semantic search | Meaning-based search — finds what keyword search misses |
| Tavily | AI search | Optimized search API — leaner than Perplexity for simple lookups |
| Linear | Project mgmt | Issue tracking and sprint management for agents |
| Vercel | Deploy | Deploy previews, build logs, runtime logs |
| Zapier | Automation | 8,000+ app integrations via a single MCP server |
Notable New Servers (April 2026)
Servers that passed the 6-gate evaluation and are being added to the radar. Full profiles in the adoption radar.
| Server | Category | What it gives agents | Ring |
|---|---|---|---|
| Datadog MCP | Observability | Query logs, metrics, traces, incidents in real-time. 16+ tools. Remote — no local server. GA March 2026. | Assess |
| MemPalace | Agent Memory | Local memory using method-of-loci architecture. 29 MCP tools. ChromaDB + SQLite. 170-token startup cost. Known stdout bug on Claude Desktop — watch before trial. | Assess/Watch |
Registries
| Registry | URL | Notes |
|---|---|---|
| Official MCP Registry | registry.modelcontextprotocol.io | ~2,000 servers, canonical discovery |
| GitHub MCP Registry | github.blog | GitHub-integrated discovery |
| MKINF Hub | hub.mkinf.io | Community directory |
| awesome-mcp-servers | github.com/wong2 | Curated community list |
Context
- Model Context Protocol — Architecture, token economics, the three primitives
- Tool Selection Radar — Which servers to use for which team jobs
- MCP Servers Hub — Navigation
Questions
Which server category is most underrepresented in the official list relative to the problems agents actually need to solve?
- At 2,000+ servers in the registry, what's the right discovery heuristic — category first or job first?
- Which server in this list would you build yourself if it didn't exist — and why hasn't someone built it?