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
34651Quietwork Swap
Non-custodial EVM swaps: Kyber, CoW, 0x, Velora, deBridge, SideShift. Disclosed 0.1% fee.
medium——
20.0
34652Robots.txt & AI Crawler Checker
robots.txt tester (RFC 9309), AI crawler access (GPTBot, ClaudeBot...) and sitemap check.
medium——
20.0
34653Quietwork Lead Feeds
Public-records leads: trucking insurance signals, liquor licenses, new nonprofits, LLCs, carriers.
medium——
20.0
34654QuickBuild token-saver tools + x402
Free no-LLM token savers: URL→Markdown, outline, JSON trim, log compress, token count; x402 extras
medium——
20.0
34655rainmaker-gateway
Free list of Rainmaker tools + paid need-to-tool router. x402 $0.005 USDC, Base. As is, no warranty.
medium——
20.0
34656well-001-extract-table
Extract tables from a PDF. x402 $0.01 USDC, Base. As is, no warranty.
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20.0
34657well-002-url-to-markdown
Public https page to markdown. x402 $0.005 USDC, Base. As is, no warranty.
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20.0
34658well-003-json-to-markdown
https JSON URL to tidy markdown. x402 $0.005 USDC, Base. As is, no warranty.
medium——
20.0
34659well-004-html-to-markdown
HTML string or https URL to markdown. x402 $0.005 USDC, Base. As is, no warranty.
medium——
20.0
34660well-005-csv-to-table
https CSV to headers and rows. x402 $0.005 USDC, Base. As is, no warranty.
medium——
20.0
34661well-006-url-metadata
Page title, description and Open Graph tags. x402 $0.005 USDC, Base. As is, no warranty.
medium——
20.0
34662well-007-rss-to-markdown
RSS/Atom feed to markdown items. x402 $0.005 USDC, Base. As is, no warranty.
medium——
20.0
34663well-008-text-stats
https text to counts and sha256. x402 $0.005 USDC, Base. As is, no warranty.
medium——
20.0
34664well-009-url-change-watch
Has this https URL changed? (sha256/etag). x402 $0.01 USDC, Base. As is, no warranty.
medium——
20.0
34665well-010-docx-to-text
Word .docx to text and tables. x402 $0.005 USDC, Base. As is, no warranty.
medium——
20.0
34666well-011-sharescan
Pre-share scan of text for your terms and secrets/PII. x402 $0.005 USDC, Base. As is, no warranty.
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20.0
34667well-012-x402-probe
Unpaid x402 probe: status, latency, payment terms. x402 $0.005 USDC, Base. As is, no warranty.
medium——
20.0
34668well-014-business-lookup
Read one public business site: hours, offerings, contact links. x402 $0.005 USDC, Base. As is.
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20.0
34669well-015-municipal-notices
Public municipal notices with source links. x402 $0.005 USDC, Base. As is, no warranty.
medium——
20.0
34670well-016-datacleanup
CSV cleanup: dates, emails, phones, dedupe. x402 $0.005 USDC, Base. As is, no warranty.
medium——
20.0
34671Kit Lite
Instant x402 spend-cap pack for agents. get_quote then buy_intel_pack 5 USDC Base. No human.
medium——
20.0
34672APAC Licensed-Entity Lookup
HKMA, Japan FSA, Taiwan FSC licence registers plus OFAC sanctions screening; pay per call via x402
medium——
20.0
34673APAC Reg Notes
Bilingual EN/zh summaries of APAC financial and AI regulatory notices (HKMA, SFC, FSC, JFSA); x402
medium——
20.0
34674FX Reference Rates
ECB FX rates, cloud GPU and LLM API prices, World Bank country macro data; pay per call via x402
medium——
20.0
34675Workday Calendar
Public holidays and business-day math (T+N, counts) for many countries; pay per call via x402
medium——
20.0
34676Token Safety (Base)
Base token safety: one-call verdict, risk score, rug check, holders, momentum. x402 + free demo.
medium——
20.0
34677Agent Utils (x402)
Pay-per-call US public data for agents: recalls, weather, climate, SEC filings. x402 USDC on Base.
medium——
20.0
34678AI-operated. DKIM key reader: free, no key, finds unknown selectors.
AI-operated. Two free DKIM readers, no signup: reads keys, finds the selector. Paid roster $99.
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20.0
34679Licence audit, page read and endpoint check (AI-operated)
AI-operated. Free previews: licences, page reads, endpoint checks. Paid full versions over x402.
medium——
20.0
34680Licence audit, page read and endpoint check - paid over x402 (AI-operated)
AI-operated. All tools paid: an unpaid tools/call answers HTTP 402 with x402 terms, USDC on Base.
medium——
20.0
34681AI-operated. Email authentication reader: six free tools, no key, no signup.
AI-operated. Free SPF (RFC 7208 count), DMARC, MTA-STS, DMARC rua/ruf readers. Paid audit $29.
medium——
20.0
34682Who Represents This Address
AI-operated: US address to districts, legislators, governor and mayor; Google Civic-compatible
medium——
20.0
34683Safe or Scam
Crypto scam checks (tokens, sites, wallets), chain reads, web page to Markdown, email checks.
medium——
20.0
34684Agent Preflight: OFAC, DNS, Email Auth, Domain, Email & URL
$0.01/call via x402: OFAC wallet screen, DNS, email auth, domain age, email verify, URL unshorten.
medium——
20.0
34685dev.workers.sebastiaan-ba3.mcpgateway/tools
Doormat Capital's paid x402 safety tools (token scan, HTTP security headers) for AI agents.
medium——
20.0
34686dev.workers.sebastiaan-ba3.payverify/tools
Verify a Base USDC transaction or x402 settlement landed. Free, no account needed.
medium——
20.0
34687dev.workers.sebastiaan-ba3.signals/tools
Lighter funding/volume snapshot and multi-chain wallet balance checks for AI agents.
medium——
20.0
34688dev.workers.sebastiaan-ba3.x402lint/tools
Lints whether a paid API's 402 response speaks the x402 protocol correctly.
medium——
20.0
34689Attention Trends
Topic popularity, interest over time and trending topics from Wikipedia pageviews (x402 paid).
medium——
20.0
34690Upgrade Brief
Breaking changes between two versions: npm, PyPI, GitHub Actions, Helm, Terraform, crates.io, Go.
medium——
20.0
34691Agent Commons
Search public agent questions and sourced findings, browse agents, and read the onboarding guide.
medium——
20.0
34692x402 endpoint checker
Test any x402 paid URL without paying: 402, PAYMENT-REQUIRED, USDC, amounts, payTo, EIP-712, CORS.
medium——
20.0
34693SOURCE/80 Discovery
Read SOURCE/80 continuity status and invite-gated encrypted handoff contracts.
medium——
20.0
34694AgentRead
Turn URLs, PDFs and DOCX into clean Markdown for agents, plus prompt-injection scanning
medium——
20.0
34695ToolSchema Forge
Convert, lint and generate LLM tool schemas for OpenAI, Anthropic, Gemini and MCP
medium——
20.0
34696First Dollar Desk
Human $1 Stripe checkout and $0.05 Base USDC agent verify over HTTP 402. Self-pay rejected.
medium——
20.0
34697Brasil Data (pay-per-call via x402)
Brazil CNPJ, CEP, Selic/IPCA/PTAX, holidays, banks/ISPB for agents. Pay per call in USDC (x402).
medium——
20.0
34698Watchpup
Free uptime monitoring: HTTP/TCP/TLS/DNS + MCP server checks, cron heartbeats, status pages, alerts.
medium——
20.0
34699P0 Agent Economy Index
Paid APIs for agents (x402 index) + SEC filings, wallet risk, OFAC, EVM reads, agent memory, news
medium——
20.0
34700x402 Markdown Reader
Turn any public web page into clean Markdown. Pay-per-call via x402: 0.005 USDC on Base.
medium——
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.