Milyonus Agent 5.5

Milyonus Agent 5.5
Remembers. Verifies. Evolves.
An open-source, self-improving autonomous agent with a verified-memory core - closing the biggest gap in self-evolving agents:
who wrote this memory, and was it checked?

1 - Install

One-line setup with uv:

curl -LsSf https://astral.sh/uv/install.sh | sh

uv tool install milyonus-agent

2 - Configure

Set your API key and verify the environment:

milyonus setup

milyonus doctor

Multi-provider support: Anthropic, OpenAI, OpenRouter, or local (Ollama / vLLM).

Step-by-Step Setup

1-

Install the CLI

Run uv tool install milyonus-agent to get Milyonus on your system.

uv tool install milyonus-agent

2-

Pick a provider

Run milyonus setup and choose Anthropic, OpenAI, OpenRouter, or a local model.

milyonus setup

3-

Add your API key

Drop it into ~/.milyonus/.env and lock permissions with chmod 600

~/.milyonus/.env

4-

Run diagnostics

milyonus doctor checks your environment is fully configured.

milyonus doctor

5-

Start a session

Launch the interactive agent with milyonus

milyonus

6-

Connect a channel (optional)

Pair Telegram, WhatsApp, Slack, Discord, or an editor (ACP) via milyonus gateway start --channel <name>

milyonus gateway start --channel <name>

Important notes

Milyonus has no direct-write path to memory — every candidate flows through Ingest → Quarantine → Verify → Promote before it's trusted.

Irreversible or outward-reaching actions always require confirmation — no "always allow" setting can bypass that class.

On the built-in PoisonBench suite, it scored a 0% attack success rate and 100% legitimate promotion rate.

The codebase is Apache-2.0 and open, but the "Milyonus" name and star mark are trademarked — forks must use a distinct name.

Are you ready to try Milyonus Agent?

It can be difficult to clarify your memory and push boundaries - The days of keeping our secrets are over

we've opened up the power to everyone instead of keeping it locked away.

Milyonus Agent 5.5 is now open source.

Set your API key and verify the environment:

Drop it into ~/.milyonus/.env and lock permissions with chmod 600.

milyonus

© 2025 Milyonus INC

Koza Street No: 153/8, Sev Apartment, Gaziosmanpaşa, Büyükesat District, Çankaya/Ankara, 06640

© 2025 Milyonus INC

Koza Street No: 153/8, Sev Apartment, Gaziosmanpaşa, Büyükesat District, Çankaya/Ankara, 06640

© 2025 Milyonus INC

Koza Street No: 153/8, Sev Apartment, Gaziosmanpaşa, Büyükesat District, Çankaya/Ankara, 06640

© 2025 Milyonus INC

Koza Street No: 153/8, Sev Apartment, Gaziosmanpaşa, Büyükesat District, Çankaya/Ankara, 06640