Memory & Knowledge MCP Servers for Codex CLI

State replay and self-debugging for AI agents. Track, replay, undo, checkpoint.

A persistent memory system for AI coding assistants

Local-first semantic memory for MCP agents. Recall, remember, forget, echo, drift, stats over stdio.

A multi-domain, auth-first MCP server giving AI agents access to financial markets, Web3/DeFi, developer tools, and healthcare (FHIR)

th0th MCP server - Semantic code search, memory, and context compression via Model Context Protocol

MCP server for TiddlyWiki with stdio and HTTP transport support

VaultLedger MCP server — the memory tools an AI agent runs

Local-first semantic memory MCP server for Obsidian vaults

A zero-configuration RAG memory server for MCP clients

Lightning-fast RAG for AI agents. 4-layer fusion, ONNX Runtime, sub-200ms search.

Deterministic, token-minimal agent memory: multi-hop [[wikilink]] recall with no LLM in the loop.

Unofficial Yinxiang/Evernote China MCP server with Markdown and ENML support

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

Evidence-backed, explainable persistent memory for MCP-compatible AI agents.

NVIDIA Nemotron + Perplexity Sonar as knowledge graphs — 2 domains, 83 nodes. MCP-native.

Shared, cited knowledge-graph memory for agents — ask, search, remember, keep standing instructions

Local-first memory engine for AI-agent teams: team/project ACL, recall, and federated sync.

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

Search, organize, and chat with your saved Reddit posts from Claude, Cursor, and any MCP client.

Graph + vector memory for agents: recall, ingest, search, distill. Local or remote backend.

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