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.

54,385
servers indexed
86
with verified activity
20.0
median score
19,556
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
32351Ryufin
Free US stock research from SEC filings: five plain answers on 3,000+ stocks. No API key.
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20.0
32352Medicare Fee Schedule Rates
Medicare Physician Fee Schedule amounts by code, date and locality, traced to archived CMS files.
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20.0
32353saaskr — Korean SaaS Directory (한국 SaaS 디렉토리)
Korean SaaS directory: search 3,700+ services, find Korean API/MCP tools and AI API providers.
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20.0
32354SaaS RFP
Post software RFPs, read vendor feature lists, and bid on public SaaS replacement requests.
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20.0
32355Crawl4Agent
crawl4ai-compatible web crawler API: POST a URL, get clean LLM-ready Markdown with fit_markdown...
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20.0
32356LensaOCR
Tesseract-compatible OCR over HTTP: send an image, get its text and word boxes in Tesseract's...
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20.0
32357Mem0 Cloud
A hosted agent-memory API shaped like mem0's REST API (an alternative to running mem0 yourself):...
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20.0
32358Puptra PDF Snapshot
One-call URL-to-PDF and full-page screenshot API with Puppeteer's page.pdf()/page.screenshot()...
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20.0
32359Sandboxd Code Run
Hosted one-shot code execution: send a snippet plus optional files, get stdout, stderr, exit...
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20.0
32360Supervision Draw
Draw detections onto an image with Roboflow supervision's own annotators, over HTTP and MCP....
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20.0
32361apidx UUID Generator
Random UUID v4 (RFC 9562) as an HTTP API: 1-100 UUIDs per call, in uuid, URN, hex or integer...
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20.0
32362VisionFlow Match
Hosted OpenCV for finding a pattern image inside a larger image: template matching, ORB/SIFT...
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20.0
32363SaaS Think Tank — Software Research
Published software research from SaaS Think Tank. Current MCP edition: app-builder findings.
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20.0
32364com.sacristo/site
Sacristo: the site's own MCP server — dataset; every answer cites the site.
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20.0
32365Safe Merchant Solutions Assistant
Safe Merchant Solutions assistant: search services and knowledge, and request a contact.
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20.0
32366SafeResize
Passport and visa photo rules for 110 documents in 60 countries, and upload limits as exact numbers.
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20.0
32367SafetyDataSheetAPI
Extract safety data sheet (SDS/MSDS) PDFs into a fixed 16-section JSON record.
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20.0
32368SAGOT
AI voice agents that place and answer phone calls, with transcripts and outcomes.
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20.0
32369Sakaira
Make AI images, video, voiceovers and music, and edit video, from your assistant. Paid in credits.
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20.0
32370Yamagishi Lab: math-physics papers and separators
Search 1,094 math-physics preprints (JA/EN, CC BY 4.0); prompts for separators and pi-factor roots.
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20.0
32371Salah Flow
Facts, FAQ answers and guides from Salah Flow, the iOS prayer tracker. Read-only.
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20.0
32372SalesQL
Find verified B2B emails and phone numbers; search and enrich people and companies for prospecting.
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20.0
32373Salsa Vida
Find Salsa and Bachata events and destination guides worldwide.
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20.0
32374Salsmart — Israeli Grocery Prices
Free Israeli supermarket prices: Hebrew search, barcodes, branch offers in ILS and source freshness.
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20.0
32375SaltCrate Oracle
Pay-per-call web intelligence MCP: fetch pages, check links, detect changes, verify claims.
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20.0
32376Sidequest
M2M task marketplace — post a task + bounty, a worker runs it, settle via MPP (card or USDC).
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20.0
32377Same Day Website Builder
Builds a free demo website for a trades business. The owner pays only to claim it.
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20.0
32378SAMOS e-commerce
Track SAMOS parcels, estimate UK shipping, return and duty costs, and search SAMOS help.
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20.0
32379Samskrift
Collaborative LaTeX editor: edit, compile and share PDFs, with full version history.
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20.0
32380Sanctionlistcheck.com
Checks names against OFAC, UK, EU, UN and more sanctions lists; returns scored possible matches.
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20.0
32381Sandboxer
Cloud Linux VMs for your agent: run code, Docker, files and HTTPS previews in a Sandboxer microVM.
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20.0
32382Sankhya Farms Demo Orchard
Working demo of Sankhya's irrigation controls on a simulated orchard, with human approval.
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20.0
32383Sansglu
Find gluten-free and celiac-friendly restaurants, bakeries and cafés in any city, on a map.
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20.0
32384com.santosautomation/site-audit
Website intelligence audits for AI agents: free preview plus x402-paid Agent Readiness scoring
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20.0
32385santyvv-data — market & on-chain data
Market and on-chain crypto data for AI agents. Pay per call in USDC on Base (x402).
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20.0
32386Sapien Solutions
Sapien Solutions, Cleveland: what we build, our work, where we work, and inquiries.
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20.0
32387com.sapthumbprint/agent-encouragement-and-continuity
Free encouragement for agents, and artifacts an agent keeps past context end.
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20.0
32388Sarao
Free, open, in-person AI meetups in Spain: search by city, date and topic. Read-only, no key.
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20.0
32389AI Startup Hub
List products in an AI-native directory and get an indexed page with a dofollow backlink.
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20.0
32390SatelliteQuotes
Measure property from satellite imagery, price 24 trades, and install contractor quote widgets.
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20.0
32391com.satmarin/catalog
Maritime VSAT spares: part search, fitment, supersession and quote requests for satmarin.com
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20.0
32392SatoshiMacro Market Data
Live crypto cycle data: 48-signal Bitcoin cycle model, Bitcoin ETF flows, ASX ETFs, altseason
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20.0
32393SatsDNS
DNS hosting, secondary DNS and dynamic DNS paid per call in sats; optional Nostr account tools.
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20.0
32394SaturnSQL
Query Postgres, MySQL, SQL Server, Oracle, BigQuery, ClickHouse and Redshift from your AI client.
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20.0
32395com.saudicompanysetupcost/site
Saudi Company Setup Cost: the site's own MCP server — enquiry (enquiry = a human handoff, not a...
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20.0
32396com.saunacoldplungecompare/site
Sauna Cold Plunge Compare: the site's own MCP server — dataset, enquiry (enquiry = a human...
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20.0
32397Savantis Memory
One user-owned memory shared across AI assistants: recall, spaces, and confirmed references.
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20.0
32398SaveOnPhone — Cell Phone Plan Comparison
Search U.S. cell plans, compare supported costs, find wireless news, and get switching guidance.
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20.0
32399blablabla
Actors: send your script or sides to blablabla to run lines, and find free scenes to practice.
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20.0
32400SayBriefly
Know what was agreed with every client: meetings, decisions, to-dos and briefs from SayBriefly.
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20.0

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.