Typed gears
Tools are in-process Go functions with schemas and Authority — not a separate MCP process you cannot tape.
Self-hosted · Free & Pro
Watch your agents work as a living machine
Cog is a Go-native AI agent runtime: typed gears, hash-linked event logs, byte-exact replay. No vendor SDK. No MCP. Bring your keys — own the loop.
One static binary. Your Postgres. Telegram & Discord on Free.
Chains that think
Declarative workflows with a first-class reason step. Zapier-class glue where every node can call a model.
The log is the runtime
Append-only, hash-linked trajectories. Replay byte-exact. Audit without trusting free-text JSON dumps.
Licence integrity
Free never phones home. Pro is verified against a live Stripe subscription — cancel ends access cleanly.
Built for operators who distrust black boxes
Most harnesses rent you a loop. Cog is the loop: HTTPS+SSE to models, Dispatch for every external effect, Postgres you can query with Metabase.
- Multi-provider: Anthropic, OpenAI, Gemini, DeepSeek, xAI, Qwen, Moonshot…
- Telegram + Discord on Free; WhatsApp, HTTP API, chains on Pro
- Control plane UI roadmap: design gears & chains like a machine room
install
# one-click installer or Docker
# Free = no licence file
curl -fsSL https://getcog.ai/start | less
# or: docker compose up
# message your bot
/help