Open Assistant

Spec sheet

Purpose

Open Assistant is a self-hosted personal assistant that connects email, calendars, files, notes, and messaging in one conversational interface.Read 11 Oct 2026 · open-assistant.org

Free plan

YesRead 21 Sep 2026 · open-assistant.org

App integrations

YesRead 21 Sep 2026 · open-assistant.org

Security

The site says credentials are encrypted at rest with Fernet, integrations use OAuth2, and tool invocations are recorded in an audit log.Read 11 Oct 2026 · open-assistant.org

Support

The site provides a contact email, [email protected], for help.Read 11 Oct 2026 · open-assistant.org

Agents and tools

The homepage describes 9 specialized agents and 88+ tools for routing and carrying out requests.Read 11 Oct 2026 · open-assistant.org

Automation

It supports recurring tasks using cron expressions, one-time future reminders, and multi-step agent workflows.Read 11 Oct 2026 · open-assistant.org

Commercial use

The site says commercial use requires a separate agreement.Read 11 Oct 2026 · open-assistant.org

Custom integrations

The site says users can connect REST APIs through a plugin system, with bearer, header, and basic authentication support.Read 11 Oct 2026 · open-assistant.org

Email and calendar

It can read, search, send, and draft Gmail and Outlook email, and manage Google and Outlook Calendar events.Read 11 Oct 2026 · open-assistant.org

Files and notes

It connects to OneDrive, Google Drive, Nextcloud, Notion, and OneNote, and can create or edit Google Docs, Sheets, and Slides.Read 11 Oct 2026 · open-assistant.org

Hosting and install

The product runs in a single Docker container and the site provides a one-command self-hosted installation.Read 11 Oct 2026 · open-assistant.org

LLM providers

The site says it works with OpenAI-compatible LLMs, including GPT-4o, Claude, Gemini, and Ollama.Read 11 Oct 2026 · open-assistant.org

Messaging and voice

It supports messaging through its web UI, WhatsApp, or Slack, including voice note processing and transcription.Read 11 Oct 2026 · open-assistant.org

Pricing limitation

LLM API usage is not included; the site estimates it typically costs $5–20 per month depending on usage and provider.Read 11 Oct 2026 · open-assistant.org

Telemetry and data

The site says there is no telemetry and that outbound calls go only to the chosen LLM provider and explicitly configured services.Read 11 Oct 2026 · open-assistant.org

Web search

YesRead 21 Sep 2026 · open-assistant.org

Plans and prices

Every Open Assistant plan and price →

Where Specifiction places it

• AI chatbots and assistants#50 of 657.7