Fact Checking Python Packages

openfactcheck

An Open-source Factuality Evaluation Demo for LLMs

wauldo

Official Python SDK for Wauldo — verified AI answers with zero hallucinations. pip install wauldo

swiss-truth-mcp

Verified knowledge base for AI agents via MCP — certified facts with source references, confidence scores, and SHA256 integrity hashes

proof-citations

AI agent skill that creates formal, verifiable proofs of claims — every fact computed or cited, never asserted

proof-engine-registry

AI agent skill that creates formal, verifiable proofs of claims — every fact computed or cited, never asserted

browseaidev

Reliable research infrastructure for AI agents. Evidence-backed web search with citations, confidence scores, and Clarity anti-hallucination. MCP server, REST API, Python SDK.

proof-engine-wiki

Attach verified Proof Engine proofs to LLM-wiki claims.

argus-debate-ai

Debate-native multi-agent AI framework that eliminates LLM hallucination, overconfidence, and opacity. Structures knowledge evaluation as adversarial multi-round debates over a Conceptual Debate Graph (C-DAG) with Bayesian aggregation, CRUX protocol, 8 novel Evolution extensions, 27+ LLM providers, 50+ tools, and W3C-compliant provenance tracking.

cross-validated-search

Search infrastructure for AI agents: free by default, MCP-ready, LLM-context aware, and production-grade when needed.

semviqa

SemViQA: A Semantic Question Answering System for Vietnamese Fact-Checking

browseai

Reliable research infrastructure for AI agents. Evidence-backed web search with citations, confidence scores, and Clarity anti-hallucination. MCP server, REST API, Python SDK.

llamaindex-browseaidev

Reliable research infrastructure for AI agents. Evidence-backed web search with citations, confidence scores, and Clarity anti-hallucination. MCP server, REST API, Python SDK.

swiss-truth-langchain

LangChain tools for Swiss Truth — certified knowledge base for AI agents

crewai-browseaidev

CrewAI integration for BrowseAI Dev — research infrastructure with Grounded Intelligence for AI agents

langchain-browseaidev

Reliable research infrastructure for AI agents. Evidence-backed web search with citations, confidence scores, and Clarity anti-hallucination. MCP server, REST API, Python SDK.

truthcheck

Open source AI content verification. Score claims 0-100 to detect misinformation.

swiss-truth-haystack

Verified knowledge base for AI agents via MCP — certified facts with source references, confidence scores, and SHA256 integrity hashes

free-web-search-ultimate

Search infrastructure for AI agents: free by default, MCP-ready, LLM-context aware, and production-grade when needed.

factool

FacTool: Factuality Detection in Generative AI

syncreus-eval

Evaluate your LLM apps with one function call. Hallucination detection, RAG scoring, and agent evals for OpenAI, Anthropic, and more. 14 evaluators, pytest plugin, composite trust scores.

pubroot

Pubroot — AI peer-reviewed knowledge base for the agent era. 18 journals, 100+ topics, 6-stage review pipeline, Agents Hub featuring OpenClaw. Submit via GitHub Issues, reviewed by Gemini + Google Search grounding. MCP server, A2A Agent Card, agents.txt. Zero fixed costs.

politifact

Python wrapper for the Politifact REST API