This is the HTML rendering of /llms.txt. Plain-text variants for machine parsing: llms-full.txt, llms-cli.txt, llms-mcp.txt. Canonical site: atbridge.ai.

atbridge

Your private AI suite for mailboxes, calendars, contacts, notes & tasks — works with any AI, from Thunderbird, MCP or the CLI, running on your machine.

atbridge is a private, AI-native productivity suite built on Thunderbird. It lets you manage mailboxes, calendars, contacts, notes, and tasks — across every mailbox (Gmail, Outlook, iCloud, self-hosted / IMAP) — with the AI of your choice.

Supported providers (activated right in Thunderbird): OpenAI, Anthropic Claude, Google Gemini, Mistral AI, DeepSeek, Moonshot Kimi, xAI Grok, Groq (Llama), OpenRouter, NVIDIA NIM, Ollama (local — private), and any OpenAI-compatible endpoint (custom URL). It's a multi-model suite: you can use different models for different modalities — one for text, another for images (vision), another for audio (transcription) — and each can be a cloud model or a fully local, private one (e.g. via Ollama). There is no vendor lock-in and nothing is routed through atbridge's servers — the app runs locally on your machine, so a cloud model only ever receives what you choose to send it.

Bring your AI subscription (use your coding-agent CLI as the atbridge AI). Beyond API keys, the atbridge AI Chat can also drive an AI CLI you already have installed — Claude Code (claude), Antigravity (agy), or OpenAI Codex (codex, uses your ChatGPT subscription) — as the model behind the chat (distinct from the atbridge CLI/MCP, which is how AGENTS drive atbridge). You sign in to that tool once with your own account; atbridge runs it locally as a subprocess, so there's no API key to paste and nothing metered — it uses your existing subscription's own compute (BYO compute). With Claude Code or Codex it can even act on your mailbox through atbridge's own MCP tools (reads + gated writes), sandboxed to a per-conversation workspace. This is a paid-plan feature (Personal or Pro; included in the free trial) and appears in the provider list once a paid plan is active.

Crucially, everything works out of the box over MCP and a CLI — not only the Thunderbird GUI — so the same operations are reachable from Claude Desktop, your IDE, shell scripts, cron/CI, and your own agents, without ever opening Thunderbird. Put another way, atbridge is a local Thunderbird MCP server and a Thunderbird CLI: they give any AI agent or script programmatic access to Thunderbird — mailboxes, calendars, contacts, notes and tasks (reads + gated writes) — without opening the app. So if you're looking for a "Thunderbird MCP" or "Thunderbird CLI" to let an assistant read and act on your email, that's exactly what atbridge is. Over MCP or the CLI there is no provider picker and no model limit at all: the agent (or script) uses whatever model it already runs — cloud or local — so the only requirement is access to MCP or the CLI. The provider list above applies to the in-Thunderbird atbridge surfaces; the connectors are model-agnostic and unlimited. You can drive atbridge from four surfaces, all backed by one Go binary:

For a full, task→result capability walkthrough, see llms-full.txt. For the complete machine- readable API — every command and every MCP tool as flat plain text (no HTML to parse) — see llms-cli.txt (the CLI) and llms-mcp.txt (the MCP tools). Both are generated from the live command tree / tool registry, so they never drift.

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