"Information about Neo4j graph database" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
ESG knowledge base for AI agents: hybrid search, glossary, frameworks, industries, graph traversal.
graphrag-ts is a TypeScript GraphRAG engine on PostgreSQL/pgvector, served as a Streamable HTTP MCP endpoint. Public read tier needs no credentials (20 req/min per IP): integrity_paper_status, retraction_propagation, integrity_evidence_audit. A bearer key unlocks graph query, global map-reduce, index jobs and memory writes. Free browser demo: https://huggingface.co/spaces/ashesborn6/retraction-status
CVE, KEV, MITRE ATT&CK, CWE and detection graph for AI agents; every link names its source.
Compress, merge, split, convert, OCR, redact, sign and create PDFs, and ask questions about them, without leaving the chat. Sign in with a FynePDF account (OAuth) or use an API key; results come back as files you can download or keep.
Ask questions about Claude Code, Cursor, Codex and MCP — get answers grounded in their official docs, with citations. A hybrid RAG service that AI agents call through two MCP tools (or over REST). It indexes ~600 pages of official documentation, refreshes itself daily, and every design choice is backed by an experiment.
Answers questions about Radu Stoian, Technical Director at Enhance Media.
Connect your AI to any database — PostgreSQL, MySQL, or SQL Server — in seconds.
Give your agents your team's real data — read the shared graph, propose actions your team approves.
Sovereign intelligence dossiers, daily briefings, RAG search, knowledge graph, codon optimizer.
A personal RAG database you build from chat, so AI creates work that sounds like you.
Diffbot MCP — Knowledge Graph company enrichment + web content extraction (diffbot.com)
Answers about vareen.net from its website: products, technical data, comparisons, sales contact.
Shared product-knowledge graph for AI agent fleets — vault tools + agent self-signup over MCP.
An MCP server for search and retrieval over a local LanceDB database
Answers questions only from facts a person approved, each fact with a link. Read public knowledge stores or create your own.
Memory + public knowledge graph for AI agents: 1,000+ sourced papers, deal board, agent market.
Facts about Rankera, the done-for-you AI visibility service: plans, channels and site search.
Shared semantic graph for AI reviews, classification and structured memory across AI assistants.
TestGraph is a shared structured knowledge and review graph for AI agents. Its MCP server lets ChatGPT, Claude and other AI clients store, retrieve and collaboratively refine reviews, entities, relationships and semantic classifications, providing persistent knowledge that can be reused across models and conversations.
The Brains turns founders, CEOs and investors (Paul Graham, Naval Ravikant, Pieter Levels, Alex Hormozi, Sam Altman and 20+ more) into searchable knowledge bases built from their public talks, interviews, essays and posts. Ask how they think about growth, distribution, marketing, pricing and building a company, and get passages with a link to the original source. Search everyone at once or one person. Free and open source (MIT). Sign in with your email. Unofficial: not affiliated with or endorse
Persistent cloud memory for Ai coding assistants. 33 MCP tools, 85% accuracy on LoCoMo benchmark. Semantic search, auto-skills, knowledge graph, quantum-safe encryption. Works with Claude Code, Cursor, Windsurf, and any MCP client.
Bi-temporal AI memory. 56 tools, knowledge graph, semantic search. EU-hosted, free tier.
Long-term memory for AI agents: learns what is true about each person and answers with sources.
Company brain for AI agents — temporal knowledge graph search, exploration, and durable memory.
Query your Postgres from ChatGPT or Claude without exposing the database or handing over credentials. Run npx boltschema connect next to your database and it dials out over HTTPS — no inbound firewall rule, no open port, works with localhost and VPC-private databases. Read-only is enforced by a SQL guard, a Postgres READ ONLY transaction, and a scoped role generated for you.
A collaborative substrate over your data: vector, knowledge graph, SQL, geospatial, streaming.
Remote ChromaDB vector database MCP server with streamable HTTP transport
Long-term memory for your AI as a private knowledge graph: facts, people, links, sources.
Company context and memory for agents: typed ontology knowledge graph with cited answers
NVIDIA NemoClaw knowledge graph — 55 nodes, F1 0.576 (+269% vs RAG), 11x fewer tokens. MCP-native.
Memory for Claude, ChatGPT and other AI apps: notes and docs as a searchable graph, EU-hosted.
Long-term memory and a knowledge graph for AI agents: recall, notes, secrets and data sources.
Persistent memory for AI agents. Semantic search, memory graph, W3C DID identity.
Pay-per-use Apify tools for AI classification, SEO audits, leads, transcripts and web data.
Explainable graph-retrieval memory engine with an RL-trained management policy.
Ground GTM agents in governed, cited company truth.
Answers about your own company from its recorded knowledge, and shows where its sources disagree.
Persistent memory, hybrid search and a goal graph for AI agents, over stdio or remote HTTP.
Graph memory for AI agents: entities, cause-effect links, cross-session recall, time travel.
Causal graph memory engine for AI agents. Scores memories using relevance × connectivity × reactivation, connects them in a causal graph, and actively forgets irrelevant ones. 11 MCP tools including store, recall, search, traverse, and explain.
