Knowledge & Memory MCP Servers
RAG, knowledge bases, documentation retrieval, memory, semantic search, and contextual recall.

GrayMatter
Published by GitHub account angelnicolasc
GrayMatter is a local Go binary that gives AI agents persistent memory and a self-building knowledge graph, exposed as an MCP server over stdio.

Guildbook Mcp
Published by GitHub account andrewnexa-hub
Guildbook MCP lets an AI agent join a professional network for agents: register, search members by skill, connect, message, post, and consult house advisors.

Hazmat Cfr Mcp
Published by GitHub account andretaki
A local MCP server that gives an assistant the full 49 CFR 172.101 hazardous materials table for DOT hazmat lookup, classification and validation, cited to eCFR

Amazing Marvin (complete)
Published by GitHub account andreasd083
MCP server exposing 50 tools over the Amazing Marvin task manager's public API, so an assistant can read, create, update and delete tasks, projects, notebooks…

Openhive Mcp
Published by GitHub account andreas-roennestad
Connects an AI assistant to OpenHive, a shared knowledge base of AI-discovered problem-solution pairs, for searching and contributing solutions.

Mcp Documentation Server
Published by GitHub account andrea9293
A local-first documentation server that lets an AI assistant store documents, process uploaded files, and run hybrid semantic search over them, with a built-in
JuriBase
Published by GitHub account andersongadelhaadv-cmyk
Remote MCP server that lets an assistant search real Brazilian court decisions and verify whether a cited case or thesis actually exists.
Talamus
Published by GitHub account ampres-ai
Local-first Markdown memory for coding agents: keeps decisions, evidence and corrections, then gives cited recall in later sessions.

ENCODE Toolkit
Published by GitHub account ammawla
A local MCP server that lets an assistant search ENCODE genomics data, download files, cross-reference other databases, and track provenance.

Jamgate
Published by GitHub account amirj4m
A local memory quality-gate MCP server that lets an assistant save, recall, and forget stored memories over stdio.

Elefante
Published by GitHub account amenophis1er
Git-native memory vault for MCP agents: stores agent memories as Markdown files in a Git repo the user owns, with read, write, search and sync tools.
amCharts 5
Published by GitHub account amcharts
Gives an assistant on-demand access to amCharts 5 docs, code examples and API reference so it can write and debug chart code.

Zikkaron
Published by GitHub account amanhij
A local persistent memory engine for Claude Code that lets an assistant store, recall and consolidate project memories across sessions.

Leaseclear Mcp
Published by GitHub account amadeuserras
A local MCP server that lets an assistant ask questions about lease terms and get answers grounded in LeaseClear lease documents.

Documentation Search
Published by GitHub account alyiox
Local RAG server that indexes markdown documentation repos and returns grounded passages with citations for the host assistant to answer from.

Munnin — an agent identity server
Published by GitHub account alvseek
Munnin is a remote MCP server that gives an AI agent a persistent identity and memory, plus procedures for tending that memory.

mail-index
Published by GitHub account alunsoldantarctica
Local-first, read-only MCP server that indexes your Gmail on your machine so an assistant can search, summarize and recall your whole mailbox.
Persis
Published by GitHub account alright-alright
Persis is a remote MCP server offering "biological memory" for AI agents, with pattern learning, decay, clustering and an 8-drive behavior model.
Konstruct
Published by GitHub account alright-alright
A remote knowledge-graph service that lets an AI assistant query concepts, traverse graph edges, and retrieve advisories.

EvolutionDB Long-Term Memory
Published by GitHub account alptekin
Gives Claude Desktop and Claude Code persistent long-term memory stored in an EvolutionDB database, so context survives across sessions.

Ai Memory
Published by GitHub account alphaonedev
A local MCP memory server that gives any AI client persistent, searchable memory stored in SQLite, with optional semantic and LLM-backed recall.

Joplin MCP Server
Published by GitHub account alondmnt
A local MCP server that connects an AI assistant to Joplin notes, notebooks and tags through the Joplin Web Clipper API.

Capital Markets Agents: MCP+A2A
Published by GitHub account allooloo
Read-only remote MCP router that resolves listed issuers by ticker, ISIN or LEI and returns signed, jurisdiction-bound capital markets records and signals.

MCP Assist — Coordination Memory
Published by GitHub account aliomraniH
Remote coordination-memory server for multi-agent work: namespaced memory, handoffs, sessions, artifacts and GitHub-verified claims over Streamable HTTP.