"Keeper" matching MCP servers:

Exposes 17 tools for adding, searching, maintaining, evaluating, and exporting notes in an Obsidian-based knowledge vault, plus commands to capture session knowledge and research topics into it. Works with Claude Code, Codex, and any other MCP client.

MCP server providing context usage estimation, conversation compaction, and durable semantic memory via local embeddings and SQLite.

Enables Claude AI coding assistants to persist and restore context across sessions, including saved findings, decisions, progress, checkpoints, file caches, and searchable topic channels. Supports shared memory across parallel sessions and Git-aware context organization.

Enables Claude AI coding assistants to persist and restore context across sessions, organize saved work by channels and categories, create checkpoints, search past context, and share state between parallel sessions.

Remote MCP server that exposes context-keeper's rationale store (decisions, pipelines, constraints) over Streamable HTTP, deployable on Cloudflare Workers and usable as a claude.ai custom connector.

Provides a 'library keeper' sub-agent that ingests PDF/EPUB books and answers questions grounded in them via local embedding search, with deterministic classification and knowledge gap logging.