"Open Collective" matching MCP servers:

Enables local scanning of markdown note folders to assess them against Open Knowledge Format v0.2 and ISO frontmatter tiers (Bronze/Silver/Gold), with no content leaving the machine.

Persistent sticky notes for Claude Code. You pin a note — a decision, a blocker, a todo — and it survives session resets, /clear, and closing the terminal. Next time you open Claude in that project, the notes that still matter are handed back to it automatically.

A local, open-source MCP server that provides deterministic organizational tools for structured decisions, guided reflection, action planning, and transparent digital report outlines without requiring an API key.

Open-source MCP server giving Claude persistent project memory via plain markdown files. Local-first workspace with 11 tools for projects, tasks, sessions, and notes.

Enables interaction with Apple apps like Messages, Notes, and Contacts through the MCP protocol to send messages, search, and open app content using natural language.

Enables AI models to interact with the Get笔记 (GetNotes) platform via its Open API. It supports managing notes, organizing knowledge bases, and handling tags through natural language commands.

Enables AI assistants to manage notebooks, sources, notes, search content, and interact with AI models through Open Notebook.

Enables AI assistants to search, read, create, and modify Markdown notes in local Obsidian vaults directly through filesystem operations. Supports tag-based discovery and frontmatter parsing without requiring Obsidian to be open, facilitating integration with VS Code Copilot via stdio transport.

Recordist writes notes from your calls on your laptop, with no bot in the call. Its open-source MCP server lets Claude, Cursor and other assistants search every call, open a meeting's notes and transcript, list the action items and draft the follow-up from what was said. What it returns goes to the assistant you connect. Get Recordist: https://recordist.app/download. MIT licence.

A free, open-source Markdown editor with a bundled MCP server (stdio, read-only): point Claude, Cursor, or any MCP client at your notes vault for local semantic search, read, and list. ~15MB, 5 platforms, MIT, local-first.

An open-source memory layer that provides persistent project context and architectural history for AI development tools across multiple platforms and sessions. It enables AI assistants to maintain a shared understanding of codebases while integrating directly with services like Notion for documentation management.

Enables Claude Code to interact with Bear notes on macOS, supporting create, search, update, delete, open notes, and tag management via natural language.

Exposes a stdio MCP service with twelve diary_* tools plus a cache-query tool, letting an AI write, list, open, extend, promote, demote, shelve, fade, amend, and delete memory entries organized by lifespan tiers, scopes, and fuzzy views. It also enables recalling recently opened entries from a 300-item cache to support context compression.

Enables LLM clients to browse and query your Zotero library through tool calls. Provides access to Zotero-specific functions like listing open tabs, searching items, and browsing collections via a local MCP server running inside Zotero.

Gives AI assistants persistent, shared memory using the Zettelkasten method, so they retain corrections, preferences, and decisions across sessions and across tools via local, hybrid search.

A mobile-first AI co-reading MCP server that lets users import novels or comics, sync reading progress with AI, and interact through comments, bookmarks, and notes.

Gives MCP clients read-only access to Wrist captures stored as Markdown notes in an Obsidian vault, enabling keyword search across titles, tags, summaries, to-dos and transcripts, plus retrieving full captures, listing open to-dos, and reviewing recent captures.

Enables an editor's AI chat to list and search memos, read action items and open questions, and follow the live recording in progress from the local Wisply app. Connects only to Wisply on the same Mac over a local loopback connection.

Enables users to organise messy symptom notes into a clearer, portable appointment-preparation record through privacy-conscious tools for ChatGPT and Codex. It processes submitted text in memory without intentionally persisting it, supporting symptom diary capture and appointment-prep workflows.

Enables Claude to capture notes into a personal short-term memory and recall them, with search, topic recall, dated reminders, an encrypted secrets vault, and open questions surfaced for the user to answer. A nightly dream consolidates those captures into curated long-term Markdown pages stored in a git repo, so anyone can accumulate and curate their own knowledge over time.

Provides real-time weather data from Open-Meteo API and enables creating and retrieving notes stored locally in JSON format.

Gives Claude Code a persistent, fully local long-term memory by automatically capturing session activity, indexing past conversations, projects, scheduled tasks and Obsidian notes, and recalling relevant context through hybrid keyword-plus-semantic search with progressive disclosure. It also writes session handoffs that are injected into later sessions, so work resumes with prior decisions and next steps already in context.

Enables an AI assistant to read and write a git-versioned personal markdown knowledge base through MCP tools, with deterministic validation, lifecycle enforcement, local hybrid search, and corpus auditing.

Exposes the Maimemo (墨墨背单词) Open API as MCP tools, enabling AI assistants to look up words, manage mnemonics and study plans, and maintain cloud notepads.

Enables Claude Desktop to directly access and manage Obsidian vault files, supporting reading, writing, patching, searching, and file operations without requiring Obsidian to be open.

Enables capturing, searching, updating, and deleting project notes stored in MongoDB, along with read-only note and tag resources and a reusable prompt template for reviewing open notes. Serves these capabilities to MCP clients over stdio or a stateless Express HTTP endpoint.

An open-source MCP server that makes your Obsidian vault accessible from any AI client with hybrid search, read/write, and graph analysis capabilities.

Search, read, and create speech-to-text transcripts on-device with the Whisper Notes Mac app. The MCP server is built into the app (macOS, Apple Silicon) and serves over a local Unix socket — 100% offline, no open ports.

Enables AI assistants to interact with Apple Notes, Reminders, and Calendar on macOS through MCP, all locally without API keys.

Serves folders of an Obsidian vault to AI agents over MCP as Open Knowledge Format bundles, letting them browse, search, read, graph and write draft notes with recorded provenance and checkable trust. Agents can propose changes, but only the user approves them, and stale or externally edited content is flagged rather than trusted.