"Known" matching MCP servers:

• 

  actors-mcp-serverofficial

  apify

  A

  license

  A

  quality

  B

  maintenance

  Use 3,000+ pre-built cloud tools from Apify, known as Actors, to extract data from websites, e-commerce, social media, search engines, maps, and more

  Last updated 2026-07-17

  10

  10,456

  2,011

  MIT

• KnowFlow MCP

  esurovtsev

  A

  license

  A

  quality

  D

  maintenance

  A unified knowledge retrieval tool for MCP-compatible LLMs, enabling structured external knowledge access from local files and future integrations.

  Last updated 2025-05-06

  1

  4

  MIT

• fixgraph

  jawdat6

  A

  license

  A

  quality

  C

  maintenance

  Search and contribute to FixGraph — 25,000+ community-verified engineering fixes. Tools: fixgraph_search, fixgraph_get_fixes, fixgraph_submit_fix.

  Last updated 2026-03-24

  3

  75

  3

  MIT

• What Do They Know

  paulieb89

  A

  license

  B

  quality

  C

  maintenance

  MCP server for UK Freedom of Information research. Connects AI assistants to WhatDoTheyKnow — the UK's largest FOI request platform to search requests, read responses, look up public authorities, and draft new requests.

  Last updated 2026-07-17

  8

  MIT

• KnowS MCP Server

  PancrePal-xiaoyibao

  A

  license

  B

  quality

  C

  maintenance

  Enables medical evidence retrieval and analysis via AI-powered search and summarization tools.

  Last updated 2026-04-30

  14

  2

  MIT

• CVE Risk MCP Server

  sarveshkapre

  A

  license

  -

  quality

  C

  maintenance

  Enables CVE lookups and risk assessment by integrating CISA Known Exploited Vulnerabilities (KEV) data and CVSS metrics. It helps users prioritize patching efforts by ranking vulnerabilities based on exploitation status and calculated risk scores.

  Last updated 2026-02-12

  MIT

• deadends.dev

  dbwls99706

  A

  license

  -

  quality

  -

  maintenance

  Helps AI agents avoid repeating known failures by providing deterministic lookup of dead ends for coding errors and country-specific real-world rules.

  Last updated 2026-07-08

  MIT

• ceph-issue-kb

  pdhiran

  A

  license

  -

  quality

  B

  maintenance

  Enables searching and analyzing Ceph issues from multiple trackers, providing tools to find known issues, workarounds, and fixes.

  Last updated 2026-07-17

  MIT

• CSS Tutor MCP Server

  ebimopondei

  F

  license

  -

  quality

  D

  maintenance

  Provides personalized CSS learning updates by tracking known concepts in memory, fetching latest CSS news via Perplexity, and guiding users through new CSS features they haven't learned yet.

  Last updated 2025-06-18