Updated weekly · Free & open

Which MCP servers are actually maintained?

The official registry lists every Model Context Protocol server but tells you nothing about whether any of them is still alive. This index scores each one on maintenance activity, flags what deserves a second look before you install it, and shows exactly how every number was reached.

49,991
servers indexed
87
with verified activity
20.0
median score
17,377
carrying risk flags
last refreshed

Leaderboard

Activity & maintenance, not security — how this is scored
MCP servers ranked by activity and maintenance score, highest first.
#ServerFlagsStarsChangeScore
20801ThinkerWave
Autonomous research agent for hard problems that labels every claim verified, assumption or guess.
clean——
24.0
20802Fiveable for AP Students
AP study content, practice, FRQ feedback, progress, plans, and student tools for AI apps.
clean——
24.0
20803Fiveable for AP Teachers
AP rubric grading, assignment drafts, question-bank materials, and class insights for teachers.
clean——
24.0
20804VisibilityAI
Search and compare businesses worldwide by category and city; AI-visibility data and lead capture.
clean——
24.0
20805io.github.thirdtrail/thirdtrail
Elevation-corrected sun, moon, twilight, solar and tide data for any point on Earth
clean——
24.0
20806io.github.thisis-najeeb/api-test-mcp
Call the real API and check the response against your OpenAPI spec.
clean——
24.0
20807all2md
Read, convert, search, diff and outline PDF, Word, PowerPoint, HTML and 40+ formats as Markdown.
clean——
24.0
20808Every App Is Open Source
Native reverse engineering with Ghidra and evidence on Apple Silicon macOS. Setup required.
clean——
24.0
20809FICTURN — Short Fiction Inside ChatGPT
Short, finished fiction to discover by mood, genre or reading time inside ChatGPT.
clean——
24.0
20810io.github.thomenz/brdata-mcp
Brazilian company, risk & public-tender data (CNPJ, CEIS/CNEP, PNCP) as x402-paid agent tools
clean——
24.0
20811io.github.thomenz/brmarket-mcp
FREE Brazilian marketplace search (ML, Shopee, AliExpress) + import-tax calculator (x402)
clean——
24.0
20812io.github.thomenz/soldefi-mcp
Solana DeFi risk intel over x402: rug/honeypot scans, pool analysis, wash-filtered pools.
clean——
24.0
20813Budgetary: estimate token spend
Pre-flight token-spend estimate (range, scenario, confidence) for a coding task, or an abstention.
clean——
24.0
20814China Law MCP
Search 23,995 Chinese statutes and verify citations to catch LLM-fabricated references.
clean——
24.0
20815Keystash
Keychain-backed secret broker: an AI agent can use your keys, but no tool ever returns one.
clean——
24.0
20816Socketlist
Search a directory of 800+ open-source MCP servers: find, compare and get install configs.
clean——
24.0
20817Algenta MCP Server
Governed data discovery, exact queries, decisions, simulations, and runtime utilities over MCP.
clean——
24.0
20818Codna — repository intelligence
Repo intelligence: triage, fix PRs, SARIF reachability, recall. Free codna login to execute.
clean——
24.0
20819SQAI — deterministic, read-only structured data
SQAI MCP server — four governed, deterministic, read-only data tools. Free login to execute.
clean——
24.0
20820Telys — on-device memory
Private on-device memory & retrieval for AI assistants — offline vector + lexical search.
clean——
24.0
20821LadDoc Cloud — LadDoc to SimaticML over MCP
Generate TIA Portal importable SimaticML (V19) from LadDoc IR, with strict validation, over MCP.
clean——
24.0
20822PLC Cloud Sim — LAD/SCL simulation over MCP
Cloud PLC simulator: validate and step-run LAD/SCL programs, run scenarios, return PASS/FAIL.
clean——
24.0
20823TIA Portal Docs — Siemens PLC programming docs over MCP
Search 2800+ official TIA Portal chapters: blocks, instructions, data types, constants.
clean——
24.0
20824TiaLink
TIA Portal MCP gateway: let any AI agent create blocks, write SCL, compile and simulate.
clean——
24.0
20825upkeep-mcp
Website maintenance checks: domains, SSL, uptime, technical SEO and accessibility
clean——
24.0
20826Zyrax Guard
Audit AI agent configs for prompt injection & rogue MCP servers; vet packages
clean——
24.0
20827tickadoo Experiences and Events
Discover and book theatre, tours, attractions, and live experiences worldwide. No API key required.
clean——
24.0
20828Tickiti
Connect AI assistants to the Tickiti helpdesk API: tickets, queries, reports and admin.
clean——
24.0
20829Raziel
MCP server teaching AI agents to implement TideCloak: auth, E2EE, IGA, security analysis
clean——
24.0
20830Tidegap
Runs non-urgent LLM tasks at the cleanest grid hour before a deadline, via Batch APIs when allowed.
clean——
24.0
20831TidyData Tools
Holidays, business days, currency, time zones, DNS/WHOIS, web page checks, geodata and text tools.
clean——
24.0
20832io.github.tidynest/raven-nest-mcp
AI-driven penetration testing - 22 security tools behind safety-hardened MCP endpoints
clean——
24.0
20833TidyTools: leads, Markdown, SEO, ads, jobs, prices, YouTube, trends, Amazon, markets
Pay-per-use web data tools: leads, Markdown, SEO, ads, jobs, prices, YouTube, trends, Amazon.
clean——
24.0
20834HK IPO Fee Calculator
Exact Hong Kong IPO costs: entry fee, margin interest, break-even price, scenarios, sell fees
clean——
24.0
20835GIMP 3 MCP
Let AI assistants paint, edit and export images in a running GIMP 3, with 80 tools.
clean——
24.0
20836Scout Packs
B2B data for AI agents: lead lookup, deliverability scoring, domain intel. x402 $0.01-$0.03/call.
clean——
24.0
20837GnuCash
Read a GnuCash book and import bank statements into it.
clean——
24.0
20838TILL
Swiss accounting your agent can actually use: the TILL ledger over MCP.
clean——
24.0
20839io.github.tim0-12432/HotkeylessAHK-mcp-skill
MCP server for Hotkeyless AHK HTTP API.
clean——
24.0
20840io.github.timescale/pg-aiguide
Comprehensive PostgreSQL documentation and best practices, including ecosystem tools
clean——
24.0
20841Tiger MCP
Provides programmatic access to Tiger Cloud services, databases, and documentation.
clean——
24.0
20842Timesheet
timesheet.io MCP server - manage timers, projects, tasks and reports
clean——
24.0
20843MSGraph MCP
MCP server for Microsoft Graph: Outlook mail and calendar, plus read-only Microsoft Teams
clean——
24.0
20844io.github.timohaa/scopewalker-mcp
Codebase analysis tools for AI agents: complexity, prop drilling, doc coverage, code smells.
clean——
24.0
20845io.github.tinh2/skills-hub
Search & install 13,000+ AI agent skills from skills-hub.ai inside any MCP tool.
clean——
24.0
20846remem-mcp — Local-first MCP Memory + CodeGraph + Wiki
Local-first memory for AI coding agents. Memory + CodeGraph + Wiki in one SQLite file.
medium——
24.0
20847io.github.tinhien11/tdai-memory-mcp
Local-first MCP memory server for coding agents. No API key, no cloud. SQLite + FTS5 + sqlite-vec.
clean——
24.0
20848io.github.tinqiao-oss/clawtouch-mcp
USB-HID keyboard/mouse (Pico 2, open firmware) as MCP tools; --mock runs with no hardware
clean——
24.0
20849Althea MCP
Connect coding agents to your Althea and, through her, a consent-first network of ML researchers.
clean——
24.0
20850Lacuna Research MCP
Search Lacuna's ML research graph for papers, directions, authors, venues, and hypotheses.
clean——
24.0

A score measures maintenance activity, not safety. A high score does not mean a server is secure, and a low one does not mean it is dangerous — see the methodology for what each signal does and does not tell you.