Fact-checking MCP servers

A server here checks factual claims in news, posts or AI answers against sources and gives a verdict.

Not here: servers that merely cite their sources, sign or certify data, or verify identities.

384servers
262 remote122 localTagged by Odel's AI, which can make mistakes
By GitHub stars, at most two per publisher
  1. Number 1: Korean Law MCP@chrisryugj/korean-law-mcpKorean law: statutes, precedents, ordinances, treaties and citation verification (법제처 API).3% chance this is malicious. Assessed by AI, which can make mistakes.A remote server; no sign-in.2,658 GitHub stars.
  2. Number 2: emem, the verifiable memory protocol for the physical world@vortx-ai/ememShared, verifiable memory for machines and AI. Encode where data lives; decode with any AI.4% chance this is malicious. Assessed by AI, which can make mistakes.A remote server; no sign-in.66 GitHub stars.
  3. Number 3: Smart Thinking@smithery/leghis-smart-thinkingFind relevant Smart‑Thinking memories fast. Fetch full entries by ID to get complete context. Spee…7% chance this is malicious. Assessed by AI, which can make mistakes.A remote server; it needs your API key.33 GitHub stars.

Best fit

221 made for this, ranked by starsRemoteLocal
  1. MemoryIndustry @leandropg19/memory-industryMemoryIndustry persistent memory MCP server: BM25+MMR retrieval and audit.5% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.29 GitHub stars.
  2. Cuba Memorys @leandropg19/cuba-memorysPersistent memory MCP server. 28 tools, BM25+MMR+OOD retrieval, tamper-evident audit, code graph.5% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.29 GitHub stars.
  3. LastSearch @lastsearch-hq/lastsearchEvidence-backed web research for AI agents with citations and confidence scores.5% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.20 GitHub stars.
  4. DOS — the trust substrate for agent fleets @anthony-chaudhary/dos-kernelVerify what agents actually shipped, arbitrate file collisions, refuse with structured reasons.4% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.20 GitHub stars.
  5. BrowseAI Dev @browseai-hq/browseai-devEvidence-backed web research for AI agents with citations and confidence scores.7% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.20 GitHub stars.
  6. Baron Munchausen @shinegang/baronLocal grounded memory for coding agents: MCP over stdio, stdlib only, a verdict per answer6% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from a package registry.13 GitHub stars.
  7. Mathlas @archerkattri/mathlasAirtight math for AI agents: 3.68M-doc theorem search + numeric/Lean verification. No LLM, no key.3% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.13 GitHub stars.
  8. Boson Video @linboxin/boson-videoLet your AI read any video: timed transcript, full-resolution frames, screen text, claim checks.Not assessed yet.Runs on your machine, installed from PyPI.12 GitHub stars.
  9. Glassbox Framework @thebarmaeffect/glassbox-frameworkRuntime constitutional verification for AI answers — claim reasoning, ECS, red team, audits.8% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.11 GitHub stars.
  10. Growmos @codician/growmosLiving knowledge graph for your repo: query with citations, remember/link facts, fact-check claims.3% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.9 GitHub stars.
  11. Iris @iris-eval/mcp-serverStop shipping agents on vibes. Score every agent output for quality, safety, and cost.5% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.9 GitHub stars.
  12. PyEuropePMC @jonasheinickebio/pyeuropepmcSearch and analyse scientific literature across Europe PMC, PubMed, arXiv, and ClinicalTrials.gov3% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.8 GitHub stars.
  13. Agenda Intelligence MD @vassiliylakhonin/agenda-intelligence-mdEvidence-readiness MCP server: validate, audit, and score briefs, memos, and evidence packs.4% chance this is malicious. Assessed by AI, which can make mistakes.A remote server; no sign-in.8 GitHub stars.
  14. OpenArx @openarx/openarxOpen scientific and engineering knowledge for AI agents: search, evidence, document publishing.5% chance this is malicious. Assessed by AI, which can make mistakes.A remote server; you sign in with your account.8 GitHub stars.
  15. GroundLens @groundlens-dev/groundlensVerify AI answers and executions and seal signed, offline-verifiable evidence records.5% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.7 GitHub stars.
  16. RE-call MCP Memory Server @giulioder/re-callAgent memory on your own Postgres that flags superseded facts and abstains instead of guessing.3% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.6 GitHub stars.
  17. Lune Research @luneresearch/luneSearch peer-reviewed papers and research methodology guidance from your AI agent.5% chance this is malicious. Assessed by AI, which can make mistakes.A remote server; you sign in with your account.4 GitHub stars.
  18. Jev MCP @freepik-company/jev-mcpTyped decisions with Jev / System One via OpenRouter or TypeSafe: classify, verify, rerank, decide.7% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from Docker.3 GitHub stars.
  19. Chamber @abm9111/chamberIndexed note: numbers, capitalised names, file names. Local, no model, no meaning check.5% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.3 GitHub stars.
  20. Arch Tools @deesmo/arch-tools-mcp63 production tools for AI agents — one API key, pay per call in USDC (x402) or Stripe credits.9% chance this is malicious. Assessed by AI, which can make mistakes.A remote server; no sign-in.3 GitHub stars.
  21. qsearch @theyahia/qsearchMulti-engine search for AI agents. Trust scoring, local corpus, MCP-native. Self-hostable, BYOK.9% chance this is malicious. Assessed by AI, which can make mistakes.A remote server; no sign-in.3 GitHub stars.

Also touches on Fact-checking

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