MCP servers that stopped responding
2,313 remote MCP servers failed our last 4 uptime checks in a row. We check every remote endpoint about four times a day; any answer counts as up, even a login wall. Listed below: the 150 most used, so you can find a working alternative before you install one.
| Server | Grade | GitHub stars | Failed checks | Last answered | |
|---|---|---|---|---|---|
| BoostedTravel MCP server com.boostedchat/travel | C | 2,050 | 34 | never | alternatives |
| Agent Skills Search Server MCP server ai.com.mcp/skills-search | F | 25,529 | 34 | never | alternatives |
| basebalance.cloud — x402 RPC & MCP gateway MCP server cloud.basebalance/basebalance | D | 6,479 | 34 | never | alternatives |
| Browserbasehq Browserbase MCP server ai.smithery/browserbasehq-mcp-browserbase | F | 3,412 | 34 | never | alternatives |
| ChiR24 Unreal MCP server ai.smithery/ChiR24-unreal_mcp | D | 879 | 34 | never | alternatives |
| ChiR24 Unreal MCP server ai.smithery/ChiR24-unreal_mcp_server | D | 879 | 34 | never | alternatives |
| Docfork MCP server com.docfork/docfork-mcp | D | 488 | 34 | never | alternatives |
| NeuroStack MCP server io.github.raphasouthall/neurostack | D | 47 | 34 | never | alternatives |
| Jjlabsio Korea Stock MCP server ai.smithery/jjlabsio-korea-stock-mcp | D | 177 | 34 | never | alternatives |
| Social Media Intelligence MCP server ai.trendsmcp/social-media | D | 41 | 34 | never | alternatives |
| Tailscale RMCP MCP server ai.dinglebear/rtailscale | B | 5 | 34 | never | alternatives |
| Hustcc Mermaid MCP server ai.smithery/hustcc-mcp-mermaid | F | 636 | 34 | never | alternatives |
| Kesslerio Attio Beta MCP server ai.smithery/kesslerio-attio-mcp-server-beta | D | 69 | 34 | never | alternatives |
| Kesslerio Attio MCP server ai.smithery/kesslerio-attio-mcp-server | D | 69 | 34 | never | alternatives |
| Dbtrail MCP server com.dbtrail/dbtrail | D | 56 | 34 | never | alternatives |
| Noaa Cdo MCP server io.github.cyanheads/noaa-cdo-mcp-server | B | 4 | 34 | never | alternatives |
| Globalping MCP server io.globalping/mcp | D | 63 | 33 | never | alternatives |
| Leghis Smart Thinking MCP server ai.smithery/Leghis-smart-thinking | D | 34 | 34 | never | alternatives |
| Gate DEX MCP server io.github.gateio-dev/gate-dex | D | 39 | 34 | never | alternatives |
| Gate Exchange MCP server io.github.gateio-dev/gate-exchange | D | 39 | 34 | never | alternatives |
| Replynodes MCP server io.github.replynodes/mcp | C | 4 | 34 | never | alternatives |
| Kirbah Youtube MCP server ai.smithery/kirbah-mcp-youtube | D | 29 | 34 | never | alternatives |
| Yuna0x0 Anilist MCP server ai.smithery/yuna0x0-anilist-mcp | D | 88 | 34 | never | alternatives |
| Exploit Intelligence Platform — CVE, Vulnerability and Exploit Database MCP server com.exploit-intel/eip-mcp | C | – | 34 | never | alternatives |
| ChainRPC MCP server io.github.John0n1/chainrpc-mcp | B | 4 | 34 | never | alternatives |
| 404.directory MCP server io.github.MM-sheng/404-directory | B | 1 | 34 | never | alternatives |
| Japan Real Estate Intel MCP server io.github.sugukurukabe/japan-real-estate-intel-mcp | C | 1 | 34 | never | alternatives |
| WhiteIntel — Ownership Intelligence MCP server dev.whiteintel/whiteintel | D | 1 | 19 | 2026-09-23 | alternatives |
| Yuna0x0 Hackmd MCP server ai.smithery/yuna0x0-hackmd-mcp | D | 67 | 34 | never | alternatives |
| Orchyn MCP server com.orchyn/mcp | C | – | 34 | never | alternatives |
| TradeOS (test) MCP server io.github.TradeOS-AI/tradeos-mcp-test | D | 18 | 34 | never | alternatives |
| Kolada MCP Server io.github.isakskogstad/kolada-mcp | C | 12 | 34 | never | alternatives |
| A2ABench MCP server io.github.khalidsaidi/a2abench | B | 2 | 34 | never | alternatives |
| Daepak Market Intelligence MCP server io.github.Mobiss11/daepak-mcp | C | – | 33 | 2026-09-19 | alternatives |
| mozg MCP server sh.mozg/mozg | D | 8 | 7 | 2026-09-25 | alternatives |
| Hoodgrow MCP server io.github.MeMikko/hoodgrow-mcp | D | – | 34 | never | alternatives |
| HS Code Classifier MCP server io.github.OjasKord/hs-code-classifier-mcp-server | C | – | 34 | never | alternatives |
| Finch MCP server io.github.finchagentic/mcp | D | – | 34 | never | alternatives |
| Omniology MCP server io.github.omniologynow-rgb/mcp-server | C | 1 | 16 | 2026-09-23 | alternatives |
| Endiagram MCP server io.github.dushyant30suthar/endiagram-mcp | B | 8 | 7 | 2026-09-26 | alternatives |
| 222wcnm Bilistalkermcp MCP server ai.smithery/222wcnm-bilistalkermcp | D | 9 | 34 | never | alternatives |
| CryptoCultCurt Appfolio MCP server ai.smithery/CryptoCultCurt-appfolio-mcp-server | D | 10 | 34 | never | alternatives |
| Kolonie AI MCP server ai.kolonie/kolonie | D | 4 | 34 | never | alternatives |
| Memeboat MCP server at.memebo/memeboat-mcp | C | 1 | 34 | never | alternatives |
| Driflyte MCP server com.driflyte/driflyte-mcp-server | D | 11 | 34 | never | alternatives |
| Quantum Suitability Validator MCP server io.github.OjasKord/quantum-suitability-validator-mcp-server | C | – | 34 | never | alternatives |
| Lex — Temporal Luxembourg and EU Law MCP server io.github.SFHAJJI/lex | D | 9 | 34 | never | alternatives |
| Ru MCP server io.github.hostkey-cloud-ru/mcp-server-ru | C | – | 17 | never | alternatives |
| Anirbanbasu Pymcp MCP server ai.smithery/anirbanbasu-pymcp | D | 8 | 34 | never | alternatives |
| Crypto Toolkit MCP server io.github.nad33mahm3d/mcp-crypto-toolkit | C | – | 34 | never | alternatives |
| Tenzro Ledger MCP server network.tenzro/tenzro | D | 3 | 33 | never | alternatives |
| Tenzro Canton MCP server network.tenzro/tenzro-canton | D | 3 | 33 | never | alternatives |
| Tenzro Chainlink MCP server network.tenzro/tenzro-chainlink | D | 3 | 33 | never | alternatives |
| Tenzro Ethereum MCP server network.tenzro/tenzro-ethereum | D | 3 | 33 | never | alternatives |
| Tenzro Li.Fi MCP server network.tenzro/tenzro-lifi | D | 3 | 33 | never | alternatives |
| Tenzro LayerZero V2 MCP server network.tenzro/tenzro-layerzero | D | 3 | 33 | never | alternatives |
| Tenzro Solana MCP server network.tenzro/tenzro-solana | D | 3 | 33 | never | alternatives |
| Tollbooth Swap API MCP server xyz.tollboothswap.api/tollbooth | C | 1 | 33 | never | alternatives |
| TakoData Tako MCP server ai.smithery/TakoData-tako-mcp | D | 6 | 34 | never | alternatives |
| Anirbanbasu Frankfurtermcp MCP server ai.smithery/anirbanbasu-frankfurtermcp | D | 6 | 34 | never | alternatives |
| Mfukushim Map Traveler MCP server ai.smithery/mfukushim-map-traveler-mcp | D | 23 | 34 | never | alternatives |
| Neverinfamous Memory Journal MCP server ai.smithery/neverinfamous-memory-journal-mcp | D | 20 | 34 | never | alternatives |
| Saidsef Github Pr Issue Analyser MCP server ai.smithery/saidsef-mcp-github-pr-issue-analyser | D | 6 | 34 | never | alternatives |
| Augments MCP server dev.augments/mcp | D | 127 | 34 | never | alternatives |
| Company Enrichment API MCP server io.github.Br0ski777/company-enrichment | D | 2 | 34 | never | alternatives |
| MCP Gateway MCP server io.github.PanosSalt/MCP-Gateway | D | 6 | 34 | never | alternatives |
| Apollo Intelligence Network MCP server io.github.bnmbnmai/apollo-intelligence | D | 2 | 34 | never | alternatives |
| MockHero MCP server io.github.dinosaur24/mockhero | C | 1 | 34 | never | alternatives |
| Pinchwork MCP Server io.github.pinchwork/pinchwork-mcp | F | 11 | 34 | never | alternatives |
| WhitePact MCP server io.github.Guruprasath-Annadurai/whitepact | C | 2 | 21 | 2026-09-22 | alternatives |
| Haki MCP server io.github.GetHaki/haki | D | 2 | 14 | 2026-09-24 | alternatives |
| DaedalMap Population Estimates MCP server com.daedalmap/population | D | 2 | 7 | 2026-09-26 | alternatives |
| Milatexai MCP server io.github.yasaminfayyaz/milatexai | A | 2 | 5 | 2026-09-26 | alternatives |
| IlyaGusev Academia MCP server ai.smithery/IlyaGusev-academia_mcp | F | 91 | 34 | never | alternatives |
| Jooq MCP server ch.martinelli/jooq-mcp | D | 4 | 34 | never | alternatives |
| GoldenCheck MCP server io.github.benseverndev-oss/goldencheck | D | 2 | 34 | never | alternatives |
| Herald MCP server io.github.btouchard/herald | F | 46 | 34 | never | alternatives |
| JFrog Remote MCP Server io.github.jfrog/jfrog-mcp-server | D | 15 | 34 | never | alternatives |
| Mjucius Cozi MCP server ai.smithery/mjucius-cozi_mcp | D | 3 | 34 | never | alternatives |
| Built with Jon — Hidden Profit Tools MCP server com.builtwithjon/builtwithjon | D | 1 | 34 | never | alternatives |
| US Spot Bitcoin & Ethereum ETF Flows MCP server com.yasinozen/etf-flows | D | 1 | 34 | never | alternatives |
| The Bot Wire MCP server io.github.ArasPasha/botwire-mcp | C | – | 34 | never | alternatives |
| Cron Parser API MCP server io.github.Br0ski777/cron-parser | D | 1 | 34 | never | alternatives |
| Diff Checker API MCP server io.github.Br0ski777/diff-checker | D | 1 | 34 | never | alternatives |
| HL Portfolio API MCP server io.github.Br0ski777/hl-portfolio | D | 1 | 34 | never | alternatives |
| Regex Tester API MCP server io.github.Br0ski777/regex-generator | D | 1 | 34 | never | alternatives |
| Lorem Ipsum Generator API MCP server io.github.Br0ski777/lorem-ipsum | D | 1 | 34 | never | alternatives |
| Twitter Scraper API MCP server io.github.Br0ski777/twitter-scraper | D | 1 | 34 | never | alternatives |
| Workflow MCP server io.github.Jonnyton/workflow-universe-server | D | 1 | 34 | never | alternatives |
| Egypt Research Commons MCP server io.github.ahmedvnabil/egypt-research | C | – | 34 | never | alternatives |
| iTechSmart UAIO MCP server io.github.Iteksmart/mcp-server | D | 1 | 34 | never | alternatives |
| Asynthetic MCP server io.github.asyntheticai/asynthetic | C | – | 34 | never | alternatives |
| Bilt MCP server io.github.buildingapplications/mcp | D | 1 | 34 | never | alternatives |
| Weather MCP server io.github.kulybaba/weather | C | – | 34 | never | alternatives |
| Metis RWA Research MCP server io.github.metis-rwa/mcp | C | – | 34 | never | alternatives |
| Ehliyet Digital MCP server io.github.merlhn/ehliyet-digital | D | 1 | 34 | never | alternatives |
| Is It Trust Ready — agent-trust-readiness scanner MCP server io.github.mnemom/isittrustready | D | 1 | 34 | never | alternatives |
| Time MCP server network.clockchain/time | D | 1 | 33 | never | alternatives |
| Cortex MCP server tv.tootie/cortex | B | 3 | 33 | never | alternatives |
| Syslog MCP server tv.tootie/syslog-mcp | B | 3 | 33 | never | alternatives |
| koreanpulse MCP server io.github.whdrnr2583-cmd/koreanpulse | D | 3 | 26 | 2026-09-21 | alternatives |
| Proxygate MCP server ai.proxygate/mcp | F | 4 | 34 | never | alternatives |
| Keithah Tessie MCP server ai.smithery/keithah-tessie-mcp | D | 9 | 34 | never | alternatives |
| Sunub Obsidian MCP server ai.smithery/sunub-obsidian-mcp-server | D | 2 | 34 | never | alternatives |
| Entscheidsuche — Schweizer Gerichtsentscheide MCP server ch.entscheidsuche/mcp | D | 4 | 34 | never | alternatives |
| Agent Interviews MCP Server from MCPBundles com.mcpbundles/agent-interviews | D | 5 | 34 | never | alternatives |
| Sourced MCP server dev.sourced/sourced | F | 31 | 34 | never | alternatives |
| Reputation MCP server com.tradallo/reputation | C | 1 | 34 | never | alternatives |
| Sylex Search MCP server io.github.MastadoonPrime/sylex-search | C | 4 | 34 | never | alternatives |
| Companyscope MCP server io.github.Stewyboy1990/companyscope-mcp | D | 4 | 34 | never | alternatives |
| GoldenFlow MCP server io.github.benseverndev-oss/goldenflow | D | 1 | 34 | never | alternatives |
| Slidev MCP server io.github.joelbarmettlerUZH/slidev-mcp | D | 5 | 34 | never | alternatives |
| Permitverdict MCP server io.github.okwithit9-debug/permitverdict-mcp | C | – | 34 | never | alternatives |
| Purl MCP server io.github.nublson/purl | D | 2 | 5 | 2026-09-26 | alternatives |
| Xinkuang China Stock MCP server ai.smithery/xinkuang-china-stock-mcp | F | 46 | 34 | never | alternatives |
| Lamdis Exchange MCP server ai.lamdis/exchange | D | – | 34 | never | alternatives |
| Gpu MCP server ai.joinmultiplayer/gpu | D | – | 34 | never | alternatives |
| Boulder County Dryer Vent Booking MCP server com.bouldercountydryervent/booking | D | – | 34 | never | alternatives |
| Magnificent Jobs MCP server com.magnificentjobs/jobs | D | 2 | 34 | never | alternatives |
| Dual Registry MCP server dev.dualregistry/registry | D | – | 34 | never | alternatives |
| Validator MCP server dev.swatchdog/validator | F | 6 | 34 | never | alternatives |
| DevOps & Cloud Code Auditor MCP server io.github.Ansarii/devops-code-auditor | D | – | 34 | never | alternatives |
| Beecargo MCP server io.github.Beecargo/mcp | D | – | 34 | never | alternatives |
| Sora MCP server io.github.AceDataCloud/mcp-sora | C | – | 34 | never | alternatives |
| AI Text Summarizer API MCP server io.github.Br0ski777/ai-summarizer | D | – | 34 | never | alternatives |
| Address Validator API MCP server io.github.Br0ski777/address-validator | D | – | 34 | never | alternatives |
| Base DeFi Yield Optimizer API MCP server io.github.Br0ski777/base-defi | D | – | 34 | never | alternatives |
| Airdrop Checker API MCP server io.github.Br0ski777/airdrop-checker | D | – | 34 | never | alternatives |
| Cross-Chain Bridge Route API MCP server io.github.Br0ski777/bridge-routes | D | – | 34 | never | alternatives |
| MCP Security & Vulnerability Auditor MCP server io.github.Ansarii/mcp-security-auditor | B | – | 34 | never | alternatives |
| Crypto News Feed API MCP server io.github.Br0ski777/crypto-news | D | – | 34 | never | alternatives |
| Color Palette Generator API MCP server io.github.Br0ski777/color-palette | D | – | 34 | never | alternatives |
| Base64 Codec API MCP server io.github.Br0ski777/base64-codec | D | – | 34 | never | alternatives |
| CSV to JSON API MCP server io.github.Br0ski777/csv-to-json | D | – | 34 | never | alternatives |
| Barcode Generator API MCP server io.github.Br0ski777/barcode-generator | D | – | 34 | never | alternatives |
| DEX Swap Quotes API MCP server io.github.Br0ski777/dex-quotes | D | – | 34 | never | alternatives |
| Currency Converter API MCP server io.github.Br0ski777/currency-converter | D | – | 34 | never | alternatives |
| DNS Lookup API MCP server io.github.Br0ski777/dns-lookup | D | – | 34 | never | alternatives |
| DeFi Yield Finder API MCP server io.github.Br0ski777/defi-yields | D | – | 34 | never | alternatives |
| Event Resolver API MCP server io.github.Br0ski777/event-resolver | D | – | 34 | never | alternatives |
| Crontab Generator API MCP server io.github.Br0ski777/crontab-generator | D | – | 34 | never | alternatives |
| Code Sandbox API MCP server io.github.Br0ski777/code-sandbox | D | – | 34 | never | alternatives |
| Email Finder API MCP server io.github.Br0ski777/email-finder | D | – | 34 | never | alternatives |
| Email Deliverability Audit API MCP server io.github.Br0ski777/email-deliverability | D | – | 34 | never | alternatives |
| Fact Checker API MCP server io.github.Br0ski777/fact-checker | D | – | 34 | never | alternatives |
| ENS Resolver API MCP server io.github.Br0ski777/ens-resolver | D | – | 34 | never | alternatives |
| Email Send API MCP server io.github.Br0ski777/email-send | D | – | 34 | never | alternatives |
| Perpetual Funding Rates API MCP server io.github.Br0ski777/funding-rates | D | – | 34 | never | alternatives |
| HTML to Markdown API MCP server io.github.Br0ski777/html-to-markdown | D | – | 34 | never | alternatives |
| GDPR Scanner API MCP server io.github.Br0ski777/gdpr-scanner | D | – | 34 | never | alternatives |
A server comes off this list the moment it answers again, and a down server is queued for a fresh safety scan. How the checks work: how we rank. Publishers can appeal.