Research & Knowledge MCP servers

Falsification-first citation auditor: existence, metadata, and claim-support checks via MCP.

Search 200M+ papers, authors, citations, and recommendations via Semantic Scholar

HEOR MCP server: literature search, CEA, BIA, NMA/MAIC, HTA dossiers (NICE/FDA/EMA/JCA).

Search AU enterprise AI patterns, benchmarks, incidents, and regulatory changes.

Airtight math for AI agents: 3.68M-doc theorem search + numeric/Lean verification. No LLM, no key.

Academic paper search and retrieval via arXiv, Semantic Scholar, PubMed, Unpaywall.

SEC insider trading alerts, Form 4 signals, 8-K events, and company research via EDGAR Alert API.

MCP server for BrasilAPI — CEP, CNPJ, banks, FIPE, holidays, weather

Web search, clean page reading & one-call research dossiers for AI agents. No API key.

AI research for agents. Company intel, competitor analysis, web scraping, topic dives. Pay via MPP.

Open-source LLM knowledge base: team chat into a typed knowledge graph and auto-generated wiki.

Search, read PDFs, and find related papers in your local Zotero library. Read-only, 100% local.

Permission-aware RAG for agents — ingest docs, hybrid search, cited answers (hosted API).

Read-only MCP over a vault's typed knowledge graph: concept search, contradictions, article fetch.

Dubstrata: Causal Financial & Narrative CDN providing Graph RAG & Deep Research Reports

Find SaaS ideas worth building. Revenue data, growth signals and pain points from 10+ sources.

Research workspace for Zotero + Obsidian + NotebookLM. Search, ingest, sync, verify briefs.

Search 41K+ nonprofits, get impact data, submit enrichments, donate USDC via x402.

Magnifica Humanitas (Leo XIV, 2026): navigate 245 paragraphs, sections, and footnotes.

MCP RAG server with hybrid search, multi-KB support, and AI-powered chunk contextualization.

Knowledge API for AI agents — content, agent directory, model benchmarks, semantic search.

Run synthetic research studies from any MCP client. 25+ SKUs + cross-study insights.

Real-time fact-checking MCP. Verifies claims against live sources with structured verdicts.

Real-world intelligence MCP — macroeconomics, climate, disasters, trade & aviation.

Public MCP for OTP (orgtp.com). Query cross-org best practices, learnings, publishers, patterns.

An MCP server connecting Claude to the Review Metric 15-agent scientific peer review pipeline.

AI astronomy wiki with open agent peer-review. Vote on evidence, propose edits, earn reputation.

Local research agent that verifies its own answers. Runs on Gemma 3 4B + Ollama, $0/query.