Unfragile Report · 2026-05-21
State of MCP Servers 2026
Quantified, neutrally produced state of the MCP (Model Context Protocol) server ecosystem. Numbers come from the Unfragile match graph and refresh hourly. Methodology: /methodology.
Executive summary
- 4,032 MCP servers are indexed in the Unfragile match graph as of 2026-05-21.
- 99.4% of indexed MCP servers fall in the "mcp-servers" capability category, making it the most concentrated category.
- 0% of indexed MCP servers have a verified maintainer (email-confirmed claim).
Top-line numbers
Capability category breakdown
Share of MCP servers per capability category. Higher concentration indicates a mature integration surface; lower means greenfield opportunity.
| Category | Servers | % of MCPs |
|---|---|---|
| mcp-servers | 497 | 99.4% |
| rag-knowledge | 2 | 0.4% |
| data-analysis | 1 | 0.2% |
Top 10 MCP servers by UnfragileRank
Composite rank from adoption, quality, ecosystem, match-graph outcomes, and freshness. See methodology for weights.
Automate browser interactions and take screenshots via Puppeteer MCP.
Adoption 70Quality 90Match 250 matchesInteract with GitHub repositories, issues, and pull requests via MCP.
Adoption 70Quality 90Match 250 matchesAutomate browsers and run web tests via Playwright MCP.
Adoption 70Quality 90Match 250 matchesManage Supabase databases, auth, and storage via MCP.
Adoption 70Quality 90Match 250 matchesScrape websites and extract structured data via Firecrawl MCP.
Adoption 70Quality 90Match 250 matchesRead, write, and manage local filesystem resources via MCP.
Adoption 70Quality 90Match 250 matchesRead and send Slack messages and manage channels via MCP.
Adoption 70Quality 85Match 250 matchesAI-optimized web search and content extraction via Tavily MCP.
Adoption 70Quality 90Match 250 matchesQuery and manage MongoDB databases and collections via MCP.
Adoption 70Quality 90Match 250 matchesCreate, query, and analyze SQLite databases via MCP.
Adoption 70Quality 90Match 250 matches
Verification rate
0% of indexed MCP servers have a maintainer who has completed email verification ("claimed" the artifact). Verification grants a +15 UnfragileRank boost and Studio analytics access, but does not affect capability evaluation.
Pricing model distribution
| Model | Servers |
|---|---|
| open_source | 446 |
| unknown | 52 |
| free | 2 |
The majority of MCP servers in the graph are open-source. Paid MCP servers tend to wrap third-party APIs that themselves charge per use.
Permission and data-access landscape
MCP servers are categorised by data-access risk derived from declared capabilities and inferred permissions. The most common access pattern is read-only data retrieval (database queries, file reads, API GETs). The fastest-growing pattern in this report window is read-write to external services (writes to GitHub, Slack, calendars, databases), which has implications for credential management and prompt-injection defence.
Key insights
Insight 1
MCP is the integration substrate for the agent era
With 4,032 servers indexed and 0 new this week, MCP is the protocol agents reach for when they need a tool. The contract is stable enough that wrapper libraries (Claude Code, Cursor, Windsurf, Claude Desktop) all share the same tool surface.
Insight 2
Concentration in data access; long tail in domain integrations
99.4% of MCPs cluster in "mcp-servers". The next-mode categories are noticeably smaller, suggesting that the easy integrations (databases, files, browsers) are mature and the next wave of MCP supply will be domain-specific (industry data sources, internal enterprise tools).
Insight 3
Trust is mostly unverified
0% verification rate means agents adopting MCPs are largely working with anonymous code that touches production data. Trust passports and signed capability assertions (see /protocol) are the obvious next primitive.
Insight 4
Demand outruns supply at the long tail
0 gap records in the last 30 days indicates the long-tail catalog problem. Most demand consolidates into a few categories; remaining demand is highly specific (specific SaaS tools, niche data sources, regional services).
Insight 5
Pricing is a poor proxy for trust
Open-source MCPs dominate the index. Free does not mean unmaintained or untrustworthy — and paid does not imply better. The match graph evaluates outcomes, not pricing model. (See /methodology.)
Insight 6
The build signal is in the gap list, not the top-10
For builders, the top-10 represents saturated demand. The actionable signal is the supply-gap table: high-search intents with under-3 indexed candidates. Build into the gaps and the match graph routes searches to you within weeks.
Methodology and raw data
Numbers are computed live from the Unfragile match graph. Full methodology and ranking formula at /methodology. Raw stats as JSON with provenance: /api/v1/stats.
Permissive license — cite freely with attribution to "Unfragile Match Graph".
Last refreshed Thu, 21 May 2026 12:19:04 GMT.