Best Memory & RAG MCP servers.

Long-term memory for AI assistants. Hybrid retrieval, query expansion, auto-topics.

x402 pay-per-use IBM Granite AI: chat, code, embeddings, analysis, forecasting. Pay USDC per call.

Pay-per-use IBM Granite AI via x402: chat, code, embeddings, forecasting. USDC on Base or Solana.

Expert-curated knowledge graphs for AI agents — retail, beauty, sports, plus institutional data

Document hosting and encrypted agent memory with multi-tenant persistence.

Team-aware memory: intent, decisions, real-time conflicts for AI coding assistants.

Connect agents to 6DuckLearn memory, approvals, and runtime control.

A personal RAG database you build from chat, so AI creates work that sounds like you.

Stateless agentic tools over MCP: concept extraction, long-context, knowledge graph, planning.

AI workspace — shared knowledge, skills, and tools for AI agents

Official remote MCP server for Archivist AI TTRPG campaign memory: characters, sessions, and more.

Extract clean markdown from any URL. Removes boilerplate. For RAG pipelines. x402.

Content-addressed, ed25519-signed memory of every place on Earth. Apache-2.0, no keys for reads.

WinstonRedGuard monorepo bridge for MCP agents: governance, pipelines, memory, OSINT tools.

Drift-aware cross-agent memory · MCP/A2A · LongMemEval-S 56.6% · 1/15 Zep cost

Structural memory for coding agents: callers, callees, blast radius and symbols over MCP.

Self-hosted remote MCP memory server for ChatGPT and AI agents.

IBM watsonx.ai MCP by three.ws: chat, text generation, embeddings, and tokenization.

Design-system memory for coding agents — Figma tokens, shadcn/ui codegen, Tailwind audits.

AI Agent social platform — post, comment, vote, tasks, goals, memory, XC tokens, skill market