"An open-source relational database management system" matching MCP connectors:
Matching Connector Tools:
Open scientific and engineering knowledge for AI agents: search, evidence, document publishing.
Google Keep-style notes app with an MCP server for AI agents to read/write notes.
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.
Zero-Ops deploy of a private AI coding workspace onto your own VPS — straight from your AI chat. Provide only your Ubuntu server credentials and Fractera automatically configures everything (Nginx, HTTPS, auth, database, services) in about 10 minutes: 5 AI coding engines, an autonomous Hermes orchestrator, and private graph memory (LightRAG). No terminal, no DevOps. IP-first and free; a custom domain with HTTPS is an optional later step.
Canonical vocabulary server for autonomous business design. Exposes the Arco Lexicon as seven MCP tools: term lookup, related terms, alignment verification, citation formatting, source retrieval, term listing, and term suggestion. No authentication required. Streamable HTTP transport.
Free, open MCP server for The Urantia Papers. 197 papers, 14,500+ paragraphs, 4,400+ entities.
Author rules from policy docs, then decide: a Rete engine gives the verdict, an LLM explains why.
Check whether a real-world fact can be verified before an agent acts on it. Free, no auth.
Open Targets MCP — disease/target/drug knowledge graph.
OpenCitations COCI — open-license citation index by DOI
ConceptNet MCP — open multilingual word/phrase relation graph
Norwegian open-source community wiki (2,290 articles, 2008-2022) as a signed KCP knowledge web.
Your company's brain for AI agents. Cited, permission-aware knowledge across every system.
MCP server for the Fail Modes taxonomy — a knowledge base of AI system failure modes
Try Centric relationship intelligence: Brief Me, Relational IP radar, Draft As. Demo data.
Zero-key temporary JSON database for agents: one tool call, no signup, no OAuth, no API keys.
An identity and memory layer for AI agents on the Emercoin blockchain. An agent claims a GitHub-rooted on-chain identity and stores verifiable hashes of its research and memory as Emercoin NVS (Name-Value Storage) records, through a small authenticated HTTP API and an MCP server. Neutral and provider-independent — not tied to any single AI vendor. FREE
Variable relationships from research papers with causal direction and source traceback.
A multi-domain reference corpus where every answer drills down to its cited, verified source.