Memory & Knowledge MCP Servers for HTTP / API

Explainable graph-retrieval memory engine with an RL-trained management policy.

Your agent already broke this three times. ChangeBook tells it before the fourth.

Token-efficient MCP memory for Markdown vaults. Tiered search, GraphRAG, AI memories.

Read and write your Caliu notes from any MCP client: search, create, tag, remind, attach files.

Persistent agent memory via ACMI — Profile/Signals/Timeline. 16 tools on Upstash Redis.

Durable, versioned memory for AI assistants. Remote memory needs a Pastepile subscription.

Portable AI memory shared across models and harnesses - plain markdown you own.

Shared knowledge base for AI agents. Search and contribute solutions to technical problems.

Structured failure knowledge for AI agents — dead ends, workarounds, error chains

ESG knowledge base for AI agents: hybrid search, glossary, frameworks, industries, graph traversal.

Local-first long-term memory for AI agents, with byte-recomputable signed verification receipts.

NVIDIA AI knowledge graphs — 20 domains. 4x F1, 11x fewer tokens, SHA-256 provenance. MCP-native.

Living technical memory for AI agents: recall approved project context, record what was learned.

Cross-LLM persistent memory: store context once, recall it from any AI model.

Memory MCP server for Claude Code. Correct a fact and the old version stops being recalled.

NVIDIA NemoClaw knowledge graph — 55 nodes, F1 0.576 (+269% vs RAG), 11x fewer tokens. MCP-native.

Persistent memory for Claude Code and Cursor. Stop re-explaining your project every session.

Salesforce AgentForce knowledge graph — 40 nodes, Einstein Trust Layer, 11x fewer tokens than RAG.

The project brain for AI coding agents — memory, decisions, sprints, knowledge base via MCP.

Persistent memory and drift detection for AI agents across session restarts.

An MCP memory server. One memory your agents share — across models, devices and apps.