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.

390servers
267 remote123 localTagged by Odel's AI, which can make mistakes

Best fit

227 made for this, ranked by starsRemoteLocal
  1. Groundwork @nickjlamb/groundworkDeployment-readiness checks for document-QA and extraction AI: grounding, extraction, CI gate.Not assessed yet.Runs on your machine, installed from npm.1 GitHub stars.
  2. ProofGraph (Antigravity MCP) @ai-buildinfra/proof-graphEvidence-first entity and knowledge graph MCP server for AI agents to verify claims.5% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from a package registry.1 GitHub stars.
  3. Academic Research Kernel @xngg1021/academic-research-kernelDeterministic research state, evidence validation and statistical recomputation.5% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.1 GitHub stars.
  4. Solana NFT @p1xelapp/solana-nft-mcpRead-only Solana NFT data for AI: ownership history, custody rules, marketplace sales and floors.4% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.1 GitHub stars.
  5. Korean Patent Status — 특허 존속 여부 판정 @didrod205/korean-patent-mcp특허 검색이 아니라 존속 판정: 특허·실용신안 번호가 지금도 유효한지 등록원부 연차료까지 대조해 소멸 사유와 함께 알려줍니다4% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.1 GitHub stars.
  6. NewsBlog Composer @mohammed-jameal-j/newsblog-composerVerifies news stories, mines SEO keywords, builds schema and reviews your draft. You write it.5% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.1 GitHub stars.
  7. Noether Physics @ranshiv/noether-physicsPhysics assistant: checked equations, live simulations, claims verified against arXiv papers3% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.1 GitHub stars.
  8. ThoughtProof @thoughtproof/thoughtproof-mcpPre-action gate: verify before pay/trade/write/deploy. execute=true only on ALLOW.12% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.1 GitHub stars.
  9. CiteVahti @heidihelena/citevahtiChecks whether each cited source supports the claim it backs. Blinded human-first, local-first.4% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.1 GitHub stars.
  10. Corroborate @chefcohen/corroborate-mcpHonest claim corroboration for AI agents: syndication-aware independent-source counting.3% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.1 GitHub stars.
  11. andon @gulmezeren2-byte/andonDeterministic verification for AI-generated analysis: run a spec, inspect or diff a workbook4% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.1 GitHub stars.
  12. Citeguard @xiaweiyi713/citeguardFalsification-first citation auditor: existence, metadata, and claim-support checks via MCP.5% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.1 GitHub stars.
  13. Opengate @nickjlamb/opengate-mcpCheck whether an AI answer is grounded in its context — deterministic, no LLM judge.5% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.1 GitHub stars.
  14. eleata Claim Verifier @hernaninverso/eleata-verify-mcpGrounding/hallucination guard: verify a claim against evidence (Supported/Refuted/NEE).5% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.1 GitHub stars.
  15. Grounded Reasoning @alexaquarius/grounded-reasoningVerify multi-hop relational claims before an agent asserts them — zero tokens, with proof paths.3% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.1 GitHub stars.
  16. Omneum @omneum/omneumEvaluate your agent's context for unreliable sources, dependencies, redundant and stale claims.5% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from MCPB.
  17. Datumline Agent Guard @datumline/agent-guardChecks an AI agent's 'done' against the files and URLs it claims. Missing = FALSE_DONE.3% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.
  18. Dunstan @barglabs/dunstanChecks a coding agent's handback against the pull request's GitHub record. No model decides.3% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from npm.
  19. ClaimGate - claim check before you publish @caseone115/claimgateFlag marketing claims your evidence cannot substantiate, before you publish.4% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from MCPB.
  20. ClaimGate starter kit - set up a publish gate @caseone115/claimgate-kitSet up a publish gate for AI-assisted marketing copy: policy, evidence folder and CI job.4% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from MCPB.
  21. honesty-mcp @lkopietz3-byte/honesty-mcpMCP server exposing 11 honesty-SDK kits (grounding, trust, audit, corroboration) as agent tools.Not assessed yet.Runs on your machine, installed from npm.
  22. Cyberwarex Council @cyberwarex/cyberwarex-councilSecond opinion for agents: 3-4 AI models answer, one verdict with confidence and dissent.12% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from Docker.
  23. TypeSafe MCP @renwang-huang/typesafe-mcpHost-neutral MCP bridge for TypeSafe AI Jev judgments with typed review, routing, and gate tools.8% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.
  24. Arbitype @renwang-huang/arbitypeTyped decision tools for AI agents, powered by TypeSafe Jev.8% chance this is malicious. Assessed by AI, which can make mistakes.Runs on your machine, installed from PyPI.