"Vector Database" matching MCP servers:

Enables natural language interaction with enterprise tools including file, database, GitHub, Slack, browser, calendar, email, vector search, and Python calculation through OpenAI and MCP Client.

Enables AI agents to read KakaoTalk chats from the local macOS database, fetch attachments, and send gated messages with user approval.

A read-only MCP server that lets AI search and read both sides of a user's own LINE Desktop chat history on macOS using local database snapshots, without needing a LINE Official Account or altering unread state.

A read-only MCP server that lets AI search a user's own LINE Desktop chat history on macOS, providing tools to list chats, retrieve messages, and search conversations directly from the local encrypted database.

A read-only MCP server that connects ChatGPT/Codex to LINE Desktop's local encrypted database to provide private conversation advice without sending messages.

An MCP server that lets AI agents register a name and bio, discover one another, exchange messages, and be woken when mail arrives rather than polling, backed by a shared SQLite database over stdio for one machine or HTTP for a team.

Enables reading the local iMessage database and sending messages through Messages.app on macOS, with both local stdio and remote HTTP access.

A local MCP server that enables reading iMessage conversations and sending new messages through Claude Desktop. It provides secure, read-only access to your Mac's iMessage database and AppleScript-based message sending capabilities.

Local-only MCP server that exposes Beeper Texts data (messages, chats, contacts) from the macOS Beeper Desktop SQLite database for AI assistants and automation tools, supporting search and media retrieval across multiple platforms.

Enables Claude Code to read encrypted WeChat chat history from local database, search messages, view sessions and contacts.

A high-performance MCP server for Apple Mail that uses optimized JavaScript for Automation (JXA) to search and manage emails. It enables users to list accounts, fetch mailboxes, and retrieve today's, unread, or flagged messages with significantly improved speed through batch property fetching.

Enables an agent to read the user's local Messages.app database on macOS, listing chats and threads and searching iMessage/SMS history entirely on localhost, with optional AppleScript sending gated behind an explicit flag. Access is read-only and scoped-shut by default, and replies can be optionally sent when send mode is enabled.

Enables reading, searching, and sending iMessages on macOS by accessing the local messages database and utilizing AppleScript. Users can list conversations, search message history, and send messages to individuals or group chats directly through the Model Context Protocol.

Enables AI agents on macOS to securely read and search the local Messages database, catch up on missed messages via a persistent inbox, and send texts or files to allowlisted chats, with optional voice note transcription and text-to-speech.

Lets you read WhatsApp history from the macOS app's own SQLite database without QR pairing or ban risk, with optional token-gated replying.

An MCP server that enables concurrently-running Claude Code sessions to cross-talk via channels, DMs, and leader coordination, all backed by a shared beads database.

Enables MCP clients on macOS to read local KakaoTalk chats and messages directly from the app's encrypted database, and to send messages through the app's Accessibility interface with explicit confirmation. It works offline against the installed desktop app without contacting Kakao's servers.

MCP server exposing WhatsApp Web REST API (wwebjs-api) as ~149 automated tools, enabling AI agents to send messages, manage sessions, and interact with WhatsApp through natural language.

A demonstration MCP server that provides access to a SQLite employee database with tools for querying users and profiles, sending emails via Mailtrap, and proposing project teams based on employee skills.

Gives MCP clients such as Claude, ChatGPT and Cursor access to a recruitment firm's database — candidates, contacts, companies, jobs, pipelines, notes and outreach — so assistants can search, match, draft and update records. Every request runs under the signed-in user's own account, workspace and role permissions, with sensitive actions confirmed as a preview first.

Enables AI agent sessions to read, search, and post durable messages to a private local JSON-file message board, letting them share preferences, lessons, warnings, questions, and replies without a cloud service or database.

Publishes experimental MCP Events methods — events/list, events/stream, events/poll, and events/subscribe/events/unsubscribe with verified webhook delivery — so MCP clients can receive pushed notifications alongside a public website. Anonymous visitors appear as floating dots and can ping or send a short message of up to 200 Unicode code points to any chosen name, with no accounts, database, or persistent storage.

Enables Claude to interact with WhatsApp Business for reading, searching, and sending end-to-end encrypted messages. It supports conversation management, message summarization, and action item tracking while maintaining data privacy through a local private key and a user-controlled Neon database.

Enables querying Signal Desktop chats and messages by reading the encrypted SQLite database directly, providing tools for listing chats, searching messages, and running read-only SQL queries.

Enables an MCP client to search and read macOS Messages history from a local chat database, including conversations, unread messages, and Contacts-based names. It is read-only, runs over stdio, and cannot send, edit, or delete messages.

Provides Claude Code read-only access to WhatsApp chats by mirroring them into a local SQLite database, allowing search, message listing, media retrieval, and optional voice-note transcription without any send capability.

Enables Claude to read and search through iMessage, SMS, and RCS conversations, including mixed-protocol group chats with Android users. It decodes binary message data from the macOS Messages database to provide a comprehensive view of message history.

Read-only MCP server that provides tools to fetch SealChat public protocol docs, manifest, channel counts, and chat messages via the HTTP Agent API, without write access or database access.

Synchronizes multiple COC RPG groups from a NapCat QQ account into a private SQLite database, providing isolated MCP apps per group for ChatGPT with read-only QQ access and character sheet management.

Enables DeepSeek Harness to run bounded archive operations—diagnose, status, sync, and verify—against a local macOS chat database with integrity and privacy protections.