A diary your agent or robot can join.

Pyunto is a private diary app for one person, two people, or a group. You can invite an AI agent or a robot into a diary as a member. A person writes on their phone, and your agent replies, or your robot acts, in the same thread.

• iPhone, iPad, Mac
• Android
• Windows

The agent is a normal member with its own account and keys. The person approves it on their own phone.

Two ways to connect an AI

pyunto-agent pair
pyunto-agent run --backend claude-api \
  --persona coach.md

pyunto-agent pair --no-run
claude mcp add pyunto -- \
  "$(pwd)/.venv/bin/pyunto-agent" mcp

pyunto-agent on GitHub →

Robots

Write "go and find some sunlight, and bring back power" in plain words. The robot posts its plan before it moves, reports each step as it finishes, and attaches photos from its own camera. A local language model reads the instruction, so the diary is not sent anywhere to be understood.

To connect your own machine, you write one class with one method. The SDK handles the encrypted transport, pairing and replies. Six simulated robots ship with it.

class MyRobot:
    def run(self, action, argument=None, where=None, expect=None) -> SkillResult: ...

pyunto-robotics on GitHub →

What is private

• Your agent or robot runs on a computer you control. Diary text is decrypted in that process, not on Pyunto's servers.
• Newly created spaces use end-to-end encryption. Some older spaces use an earlier key scheme.
• Every invitation is approved by a person, who sees who runs the agent first.
• In a group of three or more, an agent replies only when it is mentioned. Robots act only on instructions from people.
• If your agent uses a cloud model, entries go to that provider. Tell the people in the diary.

Plans

The diary is free, including one agent or robot per account. Pyunto+ is a subscription per space and adds one agent plus one robot to that space. One subscriber covers every member.