"Search for Open Source Intelligence (OSINT) Tools" matching MCP servers:

Enables an AI assistant to read and search the user's own Telegram account chats through a local server with no write operations. It also runs a background watcher that pre-filters incoming messages with substring, word, or regex rules and, optionally, has Claude judge each hit against plain-language criteria to surface only the alerts that matter.

23 tools for AI agents working with Nostr Open source. No API key. No account. NIP-46 remote signing Publish notes, reply, react, repost Encrypted DMs (NIP-04 + NIP-44) Fetch events, profiles, social graph

Enables ChatGPT to search, read, send, and organize email in a self-hosted inbox through private MCP tools.

Enables full-text search of macOS iMessages including link preview metadata. Works as an MCP server for Claude Desktop to search your messages locally.

Provides MCP-compatible AI clients with full access to a Flarum forum's API, enabling reading, searching, creating discussions, replying, moderation, and management of users, tags, and groups.

lark-tools-mcp connects Lark and cursor. It provides cursor with the ability to read documents, send messages, process tasks, and perform data analysis.

A collection of MCP servers for Apple macOS apps (Mail, Contacts, Notes, Memory, Messages, Calendar, Reminders) enabling AI assistants to read, search, create, and update data via JXA, SQLite, and EventKit.

Enables ChatGPT and Codex to interact with Zoho Mail through Zoho's official MCP service, with safe workflows and capability boundaries.

Shows your current Claude Desktop activity as Discord Rich Presence, including model, status, usage, and subscription info.

Enables AI assistants to book meetings, check availability, and manage Cal.com scheduling through natural conversation.

A Model Context Protocol server that enables AI assistants to interact with Microsoft Outlook for calendar management, email operations, and search functionality.

A local MCP server for Cursor and Claude Desktop that reads Telegram subscriptions over MTProto and exposes channel posts for digests and natural-language queries.

Enables searching and retrieving messages across Slack workspaces using Slack's search API. Supports pagination, filtered results, and returns message details including text, timestamps, users, channels, and permalinks.

Enables AI assistants to manage multiple Outlook/Microsoft 365 mailboxes simultaneously through MCP tools, with local OAuth token storage.

Brings live project context into Slack via MCP, enabling developer teams to check service health, recall team decisions, search code, and query project context directly from chat.

A self-hosted WhatsApp gateway that exposes messaging capabilities via MCP, allowing AI agents to send, receive, and manage WhatsApp messages through a single-command setup with SQLite storage.

Enables permission-checked search of past chat history that links older messages with the latest activity, returning supporting context such as timestamps, speakers, and surrounding conversation. Authorization is re-verified against current room membership and approved groups on every search, message fetch, and period read.

Enables AI assistants to interact with Slack workspaces by listing channels, posting messages and thread replies, adding emoji reactions, retrieving channel history and thread replies, and inspecting user profiles. Supports both stdio and Streamable HTTP transports for flexible integration.

Enables Claude to interact with WhatsApp on macOS through the Model Context Protocol. It allows reading messages, searching contacts, listing chats, and sending replies via natural conversation.

Enables read-only local search across Telegram chats for Codex and Gemini CLI on macOS, with message retrieval, context, and media previews using a single shared login.