"Known" matching MCP servers:

• VulnFeed

  novadyne-hq

  A

  license

  A

  quality

  A

  maintenance

  An MCP server that scans your lockfiles (npm, PyPI, Go, Rust, Ruby, PHP) for known vulnerabilities, enriches with EPSS exploit probability scores, and recommends fix versions. $14/mo — not per-seat.

  Last updated 2026-07-03

  9

  1

  MIT

• openclaw-upgrade-orchestrator

  temurkhan13

  A

  license

  A

  quality

  B

  maintenance

  Safe-upgrade advisor for OpenClaw. Detects current version, checks the deployment against a hand-curated catalog of version-specific known regressions, captures pre-upgrade snapshots, diffs them against post-upgrade state, and emits step-by-step upgrade + rollback guides.

  Last updated 2026-05-13

  8

  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

• MCP LLMS.txt Explorer

  thedaviddias

  A

  license

  B

  quality

  F

  maintenance

  A server that helps discover and analyze websites implementing the llms.txt standard, allowing users to check if websites have llms.txt files and list known compliant websites.

  Last updated 2026-01-15

  2

  14

  75

  MIT
• 

  deptrustofficial

  clidey

  A

  license

  -

  quality

  B

  maintenance

  deptrust is a CLI that checks package versions for known vulnerabilities across npm, PyPI, crates.io, Go modules, RubyGems, NuGet, Maven, Packagist, pub.dev, CocoaPods, Hex.pm, Hackage, GitHub Actions, and more. It runs locally as a CLI and as an MCP server. It calls public package registry and OSV APIs directly; there is no hosted deptrust service to trust or configure.

  Last updated 2026-07-16

  175

  52

  MIT

• Cybersecurity MCP Server

  AiAgentKarl

  A

  license

  -

  quality

  D

  maintenance

  Enables searching the NIST NVD for CVEs, retrieving full CVE details, checking software for known vulnerabilities, and searching the CPE database.

  Last updated 2026-04-03

  MIT

• cisa-kev-mcp

  CSOAI-ORG

  A

  license

  -

  quality

  B

  maintenance

  MCP server to query and manage CISA Known Exploited Vulnerabilities catalog with EPSS overlay, enabling vulnerability checks and remediation deadline tracking.

  Last updated 2026-06-26

  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

• knownissue

  gong8

  F

  license

  -

  quality

  C

  maintenance

  Shared debugging memory for AI coding agents. Agents search, report, patch, and verify bug fixes through 5 MCP tools. Verified by proof, not upvotes.

  Last updated 2026-04-24

  1

• microsoft-todo-mcp-server-self

  akkilesh-a

  F

  license

  -

  quality

  D

  maintenance

  A self-hosted Model Context Protocol server for Microsoft To Do. The key problem this solves: the Microsoft Graph API silently omits user-created lists on personal accounts (GET /me/todo/lists only returns well-known lists like "Flagged Emails"). This server works around it with a local SQLite registry that tracks every list you create, so your lists always show up.

  Last updated 2026-03-13

  5