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MCP servers tagged fact-checking
58 live MCP servers tagged "fact-checking", ranked by trust score. Tags come from package metadata and repository topics, so this list covers servers across every category that work with fact-checking.
Brain In The Fish
Score any document. Prove every claim.
Jev Judge MCP
Typed judgment tools for MCP agents. TypeSafe's Jev model as verify, screen, find, classify, rerank, decide, compare, extract, review, gate, and score: the model judges, policy de…
Genpark Hallucination Fact Grounding Checker Skill
GenPark AI Agent Skill - Sentence-level fact grounding and hallucination verification engine comparing LLM claims against retrieved source evidence.
webcite-server
WebCite MCP Server - verify AI claims against authoritative sources, bind quotes back to their source passage, and extract document figures deterministically. Works with any MCP-c…
Autopunk Media Skills
400+ free AI skills and 9 agents for media professionals — journalists, producers, podcasters, YouTubers. Quality-tested. Works with Claude, ChatGPT, Cursor, any MCP client, and m…
Zero API Key Web Search
Search infrastructure for AI agents: free by default, MCP-ready, LLM-context aware, and production-grade when needed.
Claimchain
Verify that an AI agent's on-chain claims are actually true. A claim-level groundedness checker for Solana / memecoin agents.
Contentforge
An open-source editorial production system that researches, verifies, drafts, and delivers publication-ready long-form content with human review and provenance built in.
Webcite MCP Server
WebCite MCP Server - verify AI claims against authoritative sources, bind quotes back to their source passage, and extract document figures deterministically. Works with any MCP-c…
Synorive
Search your files by meaning and fact-check the web, fully offline.
Marvnor
Hosted MCP server and HTTP API for agent memory: record-based verification, conflict detection, correction and deletion. Proprietary backend.
Aloth
Applied AI researcher & author. Building tools for information integrity (JudgeGPT, CRED-1, Origin Lens), developer productivity (olcli MCP, Trackless Links), and health tech (Min…
Originality MCP
MCP server for Originality.ai — AI detection, plagiarism, fact checking, readability, grammar, and SEO optimization
Groundcheck MCP
MCP connector that verifies a claim's grounding against reality (quotes, citations, code, repos, math) with no LLM in the verification path. Works in Claude and Gemini.
Librarian
Librarian is a MCP Server that allows any LLM with a compatible MCP client to query for information on Wikipedia
Sentinel
OSS safety runtime for sponsored recommendations in AI conversations; API/MCP verification, signed receipts, deterministic gates.
Atlas MCP
MCP server for Claude Desktop that applies Popperian falsifiability to verify claims from social media, news and blogs — with real academic sources, not opinions.
Research Engine
Reproducible research engine that contests its own findings and logs every source choice.
Corvee
A local, multi-agent-aware CLI task tracker and fact store for AI coding agents, with humans as a secondary user.
Deep Research
A human-gated, 7-phase agentic deep-research skill for Claude Code. Fans out across the open web (Tavily), GitHub, academic open-graphs (OpenAlex/arXiv/Semantic Scholar), and live…
Research Engine
Reproducible research engine that contests its own findings and logs every source choice.
BrowseAI-HQ/BrowserAI-Dev
backed). MCP server, REST API, and Python SDK.
wd041216-bit/free-web-search-ultimate
time information before answering factual questions. Supports 10+ search engines (DuckDuckGo, Bing, Google, Brave, Wikipedia, Arxiv, YouTube, Reddit) and deep page browsing. No AP…
nangman-infra/touch-browser
page session synthesis via MCP.
chefcohen/corroborate-mcp
mcp`.
Source Radar
给 AI 用的可审计信息采集引擎。SearXNG 元搜索聚合、MCP Server、证据卡、自适应质量评估。支持中文互联网搜索、抓取、社区采集。
Council MCP
MCP server that gives Claude a review council - other LLMs fact-check responses before you see them
Truth
Deterministic fact-checker for AI coding agents — verify an agent's claims about its own work against the real code, git diff & logs. Local MCP server, cited verdicts, refuses to…
Deepcheck
Lightweight synthetic-media detector with C2PA validation
Veritap
Check whether a real-world fact can be verified before an agent acts on it. Business-exists claims answered free with registry evidence (GLEIF, SEC EDGAR, Wikidata). MCP, no auth.
Llmflow Search
LangGraph web research agent for macOS with Ollama
Litmuz Agent
Claim-level verification for life-sciences research agents: honest, auditable, per-claim traffic-light verdicts against the primary literature and genomic reference data. MCP-nati…
LLM Sidecar
Local sidecar that gives every tool on your machine grounded, cited, routed AI — no API key required. Library + OpenAI-compatible daemon + MCP server + dashboard.
AI Fact Gate
Checks receipts on LLM claims (as a json), verifies and kicks it back for lyin'
Paper Verify
Standalone citation fact-checking tool for markdown/docs — extract, fetch, judge, score, report.
Doubt
Turn contested questions into interactive, source-grounded evidence maps.
Truthlens
AI hallucination detector with formally verified trust scoring for LLM outputs. No API keys needed.
Machine Meaning Layer
Open protocol proposal for AI-readable, claim-level, verifiable web content using JSON-LD, provenance, signatures, embeddings and trust signals.
FactAnchor MCP
Reduce AI hallucinations by 80% with zero-cost, local context anchoring (MCP server).
Aurelius
A fact-checked research MCP server — screen a topic, draft it, and verify every citation and claim against live web sources. Works in Claude, Gemini CLI, Cursor, and any MCP app.
Evidence Gate
Stop your AI from making up facts about your own data. A pre-generation grounding gate for LLM/RAG apps — zero-dep, MIT, JS + Python, with an MCP server.
Knowledge Curator MCP
Local, zero-cost MCP server that fact-checks Markdown/Obsidian notes using a local LLM (Ollama) + free sources (Wikipedia, DuckDuckGo)
Debriefer
Multi-source research orchestration engine. Queries 35+ sources with Wikipedia RSP reliability scoring, phased execution with early stopping, per-query cost control, and pluggable…
CortexIQ AI
CortexIQ AI is an open platform that make AI more useful, reliable, transparent, and controllable.
Narrativediff
News bias & framing diff across 50+ outlets per event
Dev Slackathon Agent
A Slack-native fact-checker that turns claims into chart-rich verdict cards using Anthropic Claude, MCP, and the Datatype variable font.
Epstein Files Plugin
MCP server + CLI for the public DOJ Epstein Files Transparency Act release - search ~1.4M documents across 20 databases (emails, images, transcripts, OCR, knowledge graph), resolv…
Agentic Pipelines
Composable, agentic pipelines for MCP — fact-checking (DSPy), RAG (hybrid search), document intelligence (DeepPipe), and clinical voice (Groq/ElevenLabs). 31 AI tools, one command…
Reddit Radar MCP
MCP server to find Reddit threads where your product genuinely fits, reconstruct the conversation, and gate drafted replies against a claim boundary you define. Read-only: never p…
Referencesource MCP
MCP server for referencesource.org — verified reference data where every record carries its source URL and a verbatim quote. Includes verify_quote.