MCP.Market

mcpindex MCP server

online · 100% uptime
by gautamgb·io.github.gautamgb/mcp-server-mcpindex·v0.4.0·1 stars
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The MCP server index that vets servers, not just lists them. Advisory screen before you install.

A89/100grade A
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Safety scan
A89/100

full report

Adoption
Growing

1 stars118 downloads/wk

Reviews

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mcpindex tools (6)

write = sends, deletes, buys or posts
  • assess_serverFree

    Aggregated pre-flight trust assessment across all tools on an MCP server. Same verdict shape as check_tool_trust. Use for "is THIS server worth integrating?" decisions. v1 advisory; conformance monitored not enforced; verdicts may be UNVERIFIED if not yet probed.

  • check_tool_trustFree

    Pre-invocation advisory screen for a specific tool on an MCP server. Returns an advisory verdict object (directive ALLOW | DENY | REVIEW | UNVERIFIED, dimensions, freshness). At v1 the public screen produces REVIEW or UNVERIFIED only - ALLOW/DENY are reserved. Not the in-path gate (mcpindex-gate). Agents SHOULD treat UNVERIFIED as "human review required", never as ALLOW.

  • compare_serversFree

    Side-by-side comparison of 2-5 MCP servers - quality scores, install paths, env vars.

  • get_install_commandFree

    Get the exact install command for a given MCP server and client. Returns a JSON block ready to paste into the client config.

  • recommend_mcp_for_taskFree

    Recommend the best MCP servers for a natural-language task. Returns top 3 ranked picks with reasoning, install commands, and quality scores. Use this when the user asks for the right MCP server for a task they want to do.

  • search_mcp_serversFree

    Keyword + semantic search across every MCP server mcpindex indexes. Use when the user knows what tool category they want but not which server.

Public scan report

scanner v0.1.10 · 2026-11-03 · same rubric, same numbers if you re-run it

no findings
  • Code scan6 source files scanned25/25
  • Live reliabilityremote reachable in 860ms20/20
  • Tool poisoning6 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identitynamespace and repository owner differ4/10
Overall 89/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How mcpindex compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
89/100
higher than 80% of 48,255 servers
Tools
6
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
251 ms
faster than 55% of 30,031 servers
GitHub stars
1
more than 65% of 28,688 servers
Downloads a week
118
more than 66% of 12,191 servers with a package

What its tools let an agent do: 6 read

Install mcpindex in Claude Code, Cursor or VS Code

claude mcp add --transport http mcp-server-mcpindex https://mcpindex.ai/api/mcp
Add to Cursor

What the publisher says

From the mcpindex repository's README, as published. We do not edit it. Read it on GitHub

mcpindex.ai

The in-path trust gate for agent tool calls.

MCP tool contracts can change remotely with no version bump. mcpindex pins each contract and HOLDs the call when it drifts — before your agent acts. Deterministic contract-diff on your host. Zero credential custody. Not a safety oracle.

Live site · Install gate · npx mcp-server-mcpindex · pip install mcpindex-gate · Remote MCP · Docs · Trust · Methodology

What you get

curl -fsSL https://mcpindex.ai/install.sh | sh (inspect first with | less) · PyPI: mcpindex-gate

  1. In-path drift gate — one command wires Claude Desktop / Claude Code / Cursor / Gemini CLI / Cline / Zed so each MCP server launches behind the gate. Local, fail-closed, default build egresses nothing.
  1. Advisory directory — search, recommend, preflight (/api/v1/preflight), and trust lookups over HTTP or as a drop-in MCP server (mcp-server-mcpindex). Screen verdicts are REVIEW / UNVERIFIED at v1; ALLOW / DENY are reserved in the contract.
  2. Agent-readable surfaces — /llms.txt, /.well-known/mcp-index.json, JSON-LD, and a per-server page for every indexed server (live count at mcpindex.ai/stats).

The gate is the wedge. The directory is the corpus the gate can query — also free.

Develop

Canonical local path: /Volumes/GB990Pro/GBCode/mcpindex-web.

If you also have mcpindex-STALE-DO-NOT-DEPLOY/ (or an old mcpindex/ clone), ignore it — it is a blocked backup, not the live site.

npm install
node scripts/sync-registry.mjs     # pull the registry: snapshot + removals + slug map
npm run dev                         # http://localhost:3000

Snapshot lives at data/snapshot.json (committed). Refresh anytime with the script.

Stack

  • Next.js 16 (App Router) on Vercel
  • Tailwind v4
  • Local snapshot of registry.modelcontextprotocol.io/v0/servers, refreshed daily via Vercel cron
  • Quality Score: lib/quality.ts (open methodology - PRs welcome)
  • Search: lib/search.ts (keyword now; embeddings v2 when OPENAIAPIKEY is wired)

Project layout

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

mcpindex: common questions

Is mcpindex MCP server safe?
Yes, by our scan: it is graded A (89/100). Read the mcpindex safety report
How do I install mcpindex?
It runs remotely at mcpindex.ai. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does mcpindex need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is mcpindex maintained?
The last commit was in the last day (2026-11-03). The latest release is v0.4.0.
Is mcpindex up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does mcpindex compare with other MCP servers?
safety score 89/100 (higher than 80% of 48,255 servers); tools 6 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.