Best Graph AI Skills & MCP Servers

GARL Protocol MCP Server — cryptographic verification for AI agent actions. 28 named tools: submit signed Action Receipts (v0.1), query multi-dimensional Trust Vector, issue/verify/revoke capability tokens (JWT-shaped + ECDSA-secp256k1), Capability Gate p

Personal Knowledge Brain for developers — MCP server with typed neurons, hybrid search (FTS5 + vector), knowledge graph, vault encryption, time-travel history, and spaced repetition. 100% local, SQLite-based.

MCP server for querying Polymarket data via The Graph subgraphs — supports stdio and SSE transports

Adaptive memory system for AI applications. Multi-strategy retrieval, cognitive scoring, knowledge graph, and self-improving ML. Connects via MCP or REST API.

GraphQL-style codebase intelligence CLI — index, query, and analyze any codebase

Alaya MCP Server — a memory engine for AI agents that remembers, forgets, and learns

Verifiable Memory-as-a-Service for AI Agents — MCP server with local SQLite or cloud mode

Codebase graph analysis for AI agents — AST + call graph + type graph + hybrid semantic search via MCP

MCP server for cryptographic AI agent governance. Seal policy artifacts, enforce at runtime, prove with signed receipts and offline-verifiable evidence bundles.

MCP App for generating graph and diagram visuals powered by Graphviz

Unsplash MCP Server

MCP server for the LaunchNotes API

Self-learning vector memory for AI agents — single-file .rvf cognitive container with HNSW search, episodic Reflexion memory, causal graph + Cypher, 9 RL algorithms, Thompson Sampling bandit, 41 MCP tools, hybrid (BM25 + dense) retrieval, GNN attention. 1

Graph-powered code intelligence for AI agents. Index any codebase, query via MCP or CLI.

MCP server for Microsoft 365 / Office 365 SharePoint — full read-write access to sites, documents, pages, metadata, navigation, and permissions

Extract design tokens (colors, typography, spacing, border radius, shadows) from any public website. Generates JSON and CSS custom properties for local projects. Available as an AI agent skill (Claude, Cursor, Codex) and standalone CLI.

A Model Context Protocol (MCP) server implementation for the Linear GraphQL API that enables AI assistants to interact with Linear project management systems.

VibeSEO — Auditoria de SEO para quem cria com IA. Meta tags, sitemap, Open Graph e visibilidade no Google.

The Hashgraph Online Standards SDK provides a complete implementation of the Hiero Consensus Standards (HCS), giving developers all the tools needed to build wonderful decentralized applications on the Hashgraph network. https://hol.org

AI agent orchestration framework for TypeScript/Node.js - 29 adapters (LangChain, AutoGen, CrewAI, OpenAI Assistants, LlamaIndex, Semantic Kernel, Haystack, DSPy, Agno, MCP, OpenClaw, A2A, Codex, MiniMax, NemoClaw, APS, Copilot, LangGraph, Anthropic Compu

Reliability for AI agents and agent swarms -- one command. A native Rust hook silently records what your agent does, surfaces past MISTAKES before each action (and blocks repeating a known destructive one so it self-corrects), breaks loops, and reuses wha

RuvNet KB-First Application Builder - Build intelligent applications on expert knowledge

MCP server that exposes the local DKG daemon (projects, sub-graphs, activity, chat) to Cursor, Claude Code, and any other MCP-aware coding assistant.

CLI for Paparats MCP - semantic code search with AST chunking, symbol graph, and vector search for AI coding assistants