Knowledge Graphs

MCP server for Google's free public Knowledge Graph Search API - search for structured entity information

Onta MCP server — expose context graph tools to AI agents

MCP server and recordkeeping protocol for fact-specific written interpretations between two parties: JIAs, RMAs, no-action letters, advisory opinions, private letter rulings. Plain markdown, manifest-checked, gist-bound. The verifiable-records layer of th

Fast, in-memory structured markdown knowledge base (.agent-kb/) with 2D neural graph visualization, live SSE activity stream, and MCP stdio integration.

Cut your AI coding agent's token usage. MCP server + CLI that turns any codebase into a deterministic code graph and serves Claude Code, Cursor, Codex & Windsurf a ranked, token-budgeted query surface — agents query structure (symbols, imports, call edges

Adaptive memory system with cognitive scoring, knowledge graph, and self-improving ML.

Understand any codebase in 60 seconds — an MCP server that turns any repo into an architecture diagram.

align CLI — an architecture-conformance verification oracle for LLM coding agents, with a built-in MCP server.

Uniswap MCP over The Graph — V2/V3/V4 on 6 chains. Simulates swaps offline with the protocol's own concentrated-liquidity math (wei-exact vs @uniswap/v3-sdk, no RPC, no extra key): amount out, effective price, price impact. Refuses to guess instead of shi

An LLM wiki your coding agent writes — agent memory you can open and read. The agent does the writing; easymem does the storage, full-text search and knowledge graph. No embedding model, no vector database.

Meta (Facebook and Instagram) Ads: 34 read tools and 10 write tools that preview first.

High-performance MCP server for OWL ontology management, written in Rust

CodeAtlas MCP server — 57 tools + 8 resources that expose live codebase architecture (routes, sequences, diffs, impact analysis, architecture violations, read-only SQL access) and AI-driven code review (per-entry-point review, evidence-gated findings, cus

Evidence-first reverse-engineering workbench for humans and AI agents

Aikoql — The Agent-First Knowledge Database. Single binary, zero deps. MCP server for knowledge CRUD, aikoql queries, graph traversal, hybrid search, context compilation, document ingestion, and more.

Fast, lightweight MCP server that fetches any web page, strips HTML bloat, converts it to clean Markdown, and extracts metadata and links for LLM analysis.

AI Memory & Knowledge Management MCP Server — 32 tools, BM25 R@5=95%, hybrid search (RRF), knowledge graph, analytics, cloud sync, Obsidian compatible. Works with Claude Code, Cursor, Gemini CLI, Windsurf, hermes-agent.

Email MCP server for Codex and Claude with IMAP, SMTP, Apple Mail, Microsoft, and Mailtrap

Provider-neutral agent runtime for coding workflows. Verified DAG execution with evidence gates, worktree isolation, and local graph memory.

MCP server for TheBrain 15 — semantic operations over the local API