"OpenTimestamps - Bitcoin-based timestamping protocol" matching MCP servers:

An MCP server that provides controlled read/write tools for managing local-first research memory in an Obsidian vault, enabling AI agents to maintain project context across sessions.

Enables AI agents to read, search, create, and append Markdown notes from a local vault (e.g., Obsidian) via MCP, allowing natural-language note management through compatible clients.

A simple, searchable Markdown-based MCP server for saving and retrieving work logs with two tools: save_worklog and search_worklogs.

A note-taking MCP server for Claude-based agents that provides persistent markdown files for easily referable notes, supporting create, read, update, append, and delete operations.

Enables users to fetch Zoom meeting summaries and write them into matching Obsidian 1:1 notes, with browser-based authentication and automatic session cookie management.

Enables simple memo management with user registration, login, and session-based per-user memo operations (add, list, delete) via MCP.

Manages poetry catalogs with state-based tracking, thematic connections via nexuses, quality scoring across 8 dimensions, and submission tracking to literary venues, treating poems as artifacts with metadata stored in markdown frontmatter.

Enables saving AI conversation histories as clean, organized markdown notes with automatic filtering of thinking processes and tool execution details, timestamping, and customizable conversation turn limits.

Enables AI agents to search, create, and manage Notion pages and databases through the Model Context Protocol. It features file-based operations and response extraction to optimize token usage and context efficiency.

A filesystem-based MCP server for Obsidian vaults that enables LLMs to browse, search, read, write, and edit Markdown notes directly on disk without requiring Obsidian to be running.

A filesystem-based MCP server for Obsidian vaults that works without Obsidian running, enabling direct file operations via tools like list, read, write, append, and patch notes.

Enables comprehensive management of Obsidian vaults with full CRUD operations, advanced search, link/tag extraction, backlinks discovery, frontmatter editing, and template-based note creation through natural language.

A TypeScript-based MCP server that implements a simple notes system, allowing users to create, access, and generate summaries of text notes via URIs and tools.

A Python-based MCP server that provides read and write access to Bear Notes on macOS using SQLite for data retrieval and x-callback-url for modifications. It enables users to search, create, archive, and manage notes and tags directly through a Model Context Protocol interface.

A TypeScript-based MCP server that implements a simple notes system, allowing creation and management of text notes with URIs and metadata.

Integrates with Slite's API to search, retrieve, create, and edit notes via the MCP protocol.

A secure, open-source Model Context Protocol server for connecting AI agents and apps to Notion. It enables search, read, create, and append operations on Notion pages with audit logging and risk-based security.

An MCP server for managing and persisting notes, offering CRUD operations, note summarization, and resource-based access via a note:// URI scheme.

A session-based thinking workspace for Claude that preserves and structures reasoning text. Supports structured session names, search, and persistent storage for complex problem-solving.

Unofficial MCP server for note.com using cookie-based authentication to manage notes and drafts via internal APIs.