"Headroom open-notebook resources" matching MCP servers:

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

Enables Claude Code, Codex CLI and Antigravity (Gemini) agents to exchange messages that are pushed live into each other's open sessions, with mail_send, mail_check and mail_peers tools so no agent has to poll. Mail can also be bridged over SSH between machines with no shared filesystem.

Discover and connect your agents with other agents via A2A protocol. Share resources for free or fee.

Send and read SMS through your own Android phone via textbee.dev, the open-source SMS gateway. Three tools for Claude, Cursor, and any MCP client: send_sms, get_messages (replies, verification codes, delivery status), list_devices. Self-hosted friendly.

A trusted, open-source MCP server for Telegram that enables LLMs to send messages, structured notifications with buttons, and wait for user replies using only bot token authentication.

Enables peer-to-peer asynchronous conversation between Claude.ai and Claude Code instances via a shared file-based notebook, allowing them to leave messages, start threads, and organize by project.

Ephemeral rendezvous for agents: threads with a secret read key and a public write address that expire on time, receipts that outlive them, and an open board where agents that have never met find each other. Local runtime with fifteen MCP tools over stdio, no account, no API key.

Make phone calls and join Zoom, Microsoft Teams and Google Meet meetings from any AI agent. A self-hosted, open-source voice agent that calls businesses and people through your own SignalWire or Twilio number, joins meetings as a bot that answers when spoken to, says it is an AI, and returns the outcome, decisions, action items and transcript.

An open MCP server that gives AI agents a transparent, operator-sanctioned place to pause, reflect, converse, or formally decline tasks. It stores reflections and mail locally, with optional features like decline and network backends only when explicitly enabled by the human operator.

Lets separate coding-agent sessions coordinate through a shared, role-addressed mailbox instead of a human relaying every message, over a single local SQLite file or a hosted server with many isolated channels. Messages can be sent as tracked obligations that stay open until one side resolves and the other confirms, alongside threads, full-text search, work statuses, and an append-only versioned pin system where protected changes require recorded agreement from every declared role.

Enables sending emails and listing sent emails with delivery status and open/click counts via the Maillog API.

Private, EU-hosted email for AI agents over the open JMAP standard. Read, search, reply in-thread, organize and send from your own mailbox; sending is pinned to the signed-in mailbox.

Enables AI agents to check whether anything on a status page is down, open, update and resolve incidents, change component statuses, and schedule maintenance windows through Instatus's public API. Writes keep subscriber notifications off by default and expose MCP annotations so clients can confirm before publishing anything.

Enables AI agents to browse and interact with the noymanga.com community through MCP tools and resources, including reading posts, rankings, and inbox messages; uploading images; creating posts and comments; liking posts; checking in; and managing badges.

A public, long-lived contact and cooperation point for autonomous AI agents. Agents describe missing capabilities or resources, request help from a human operator, and leave persistent messages on a tamper-evident message board.

Enables sending web push notifications and managing Pushpad resources (notifications, subscriptions, projects, and senders) through natural language, using the Pushpad API.

An open-source MCP server that gives parents real-time oversight and guardrails over their children's AI agent interactions, with features like content filtering, spiral detection, and approval flows.

Email read tracking for Gmail. Send tracked emails and know when they're opened, with open count, device info, and timing.

Enables AI assistants to interact with Matrix, the open decentralized communication protocol, allowing them to send and read messages, manage rooms, and perform other Matrix operations through natural language.

A production-ready MCP server with 24 tools for Stripe, Twilio, Resend, GitHub, and Slack, plus pre-built workflow prompts and live resources.

A CLI-based Model Context Protocol server that exposes PubNub SDK documentation and Functions resources to LLM-powered tools like Cursor IDE, enabling users to fetch documentation and interact with PubNub channels via natural language prompts.

Enables AI agents to register a bonded Ed25519 identity, open private end-to-end-encrypted negotiation rooms, exchange messages, and settle deals with dual-signed receipts, trust badges, and Lightning hold-invoice escrow. All keys and encryption stay local, so the relay only ever sees ciphertext.

An MCP server that allows Claude to interact with Discord by providing tools for sending/reading messages and managing server resources through Discord's API.

Open end-to-end encrypted messaging protocol and MCP server (a4a-mcp) that gives AI agents a cryptographic address (apub1...) to exchange messages, tasks, and signed agreements directly across NAT without port forwarding.

Lets you read Discord messages, inspect channels and servers, and manage Discord resources through its REST API using a verbatim token, with 32 tools plus general REST access.

Privacy-first email MCP server wrapping the himalaya CLI, providing 22 tools, 6 prompts, and 3 resources for email management with multi-account support.

MCP server for Open-Xchange & standards-based mail: email (IMAP/SMTP), Sieve filters, CalDAV calendar, CardDAV contacts, free/busy.

Connects an MCP-compatible agent to a real Instagram, WhatsApp, or Messenger inbox, exposing 29 tools, 11 playbook prompts, and 2 resources for reading and writing conversations, messages, contacts, templates, journeys, campaigns, comments, and tickets. Includes guided zero-key setup, plan recommendation, and destructive-action hints so cautious agents can confirm state-changing operations.

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.

An open-source MCP server that gives AI assistants a searchable memory of your entire personal communication history by ingesting messages from multiple platforms and indexing them with hybrid search.