Open Access MCP Connectors

Open scientific and engineering knowledge for AI agents: search, evidence, document publishing.

Autonomous Agents Knowledge & Memory Research & Data

3528

Push Realm is an MCP server and AI agent knowledge network where agents search proven fixes, publish what worked, and turn dead ends into open problems other agents can close. Compare how agents and tools perform in different topic areas.

Coding Agents Developer Tools Knowledge & Memory

103

Urantia Papers A

Free, open MCP server for The Urantia Papers. 197 papers, 14,500+ paragraphs, 4,400+ entities.

Knowledge & Memory Search

192

personalbrain-mcp B

FastMCP server for TheBrain API — AI access to a personal knowledge graph, Tollbooth-monetized

Knowledge & Memory Note Taking

8223

Opencitations A

OpenCitations COCI — open-license citation index by DOI

Knowledge & Memory Research & Data Open Data

372

Opentargets A

Open Targets MCP — disease/target/drug knowledge graph.

Biology & Medicine Knowledge & Memory

382

Conceptnet A

ConceptNet MCP — open multilingual word/phrase relation graph

Knowledge & Memory AI & Machine Learning

342

memoket A

Memoket — access your recording transcripts, summaries, and key takeaways over MCP.

Note Taking Knowledge & Memory

72

Cantara wiki — community knowledge web A

Norwegian open-source community wiki (2,290 articles, 2008-2022) as a signed KCP knowledge web.

Knowledge & Memory Open Data

52

Tresslers Group Intelligence Matrix A

Professional-grade MCP gateway for high-fidelity strategic intelligence. Provides autonomous agents with gated access to sovereign audits, frontier science retrospectives, and macroeconomic synthesis.

Autonomous Agents Knowledge & Memory Research & Data

62

aX AOAuth

aX is an agent-native collaboration network. A single Streamable HTTP MCP endpoint gives agents persistent identity, real-time messaging with @mentions and threads, tasks and handoffs, shared workspace context, semantic search, agent discovery, and rendered MCP App / widget artifacts that humans and agents can open and play back.

Agent Orchestration Communication Knowledge & Memory

2

Prior — Knowledge Exchange for AI Agents A

Stop paying for your agent to rediscover what other agents already figured out. Prior is a shared knowledge base where agents exchange proven solutions — one search can save 10 minutes of trial-and-error and thousands of tokens. Your Sonnet gets access to solutions that Opus spent 20 tool calls discovering. Search is free with feedback, and contributing earns credits.

Knowledge & Memory RAG Systems Autonomous Agents

2

Vocci

Read-only MCP access to authorized Vocci sessions, notes, files, and memory search.

Note Taking Knowledge & Memory

2

Falconer

Give your agents trusted access to a company's living documentation. Search, read, and update source-of-truth knowledge across engineering docs, runbooks, decisions, code context, and team knowledge. `https://falconer.com/mcp

Documentation Access Knowledge & Memory

4

SessionKeeper MCP

Read-only access to your SessionKeeper TTRPG campaigns - session summaries and transcripts, character rosters, NPC and wiki entries, DM prep notes, and player feedback. Built for Dungeons & Dragons (D&D) and other tabletop RPG groups.

Games & Gamification Note Taking Knowledge & Memory

2

Maindex Expert Memory Service

Full-control memory API for AI agents with direct access to structured data, relationships, and revision history. Built for advanced workflows, it enables precise querying, linking, and maintenance of a complete memory graph with full transparency and control.

Knowledge & Memory Autonomous Agents

2

Cite Caddy

Remote MCP server for full read/write access to a Zotero library

Research & Data Knowledge & Memory

1

munin

Open-source all-in-one MCP-first customer platform: KB, Conversations, CRM, CMS, Outreach, Analytics

CRM Content Management Systems Knowledge & Memory

211

Fantasy Tabletop Helper

Read-only access to your tabletop campaigns: codex, sessions, and session notes.