Cayu
Cayu is an open-source Python framework for building and running domain-specific, long-horizon agents on a durable runtime. Sessions survive restarts and redeploys from SQLite or Postgres stores, tool policies can require human approval before side effects, spend caps are checked before each model call, and timers, background tasks, subagents and forks cover longer multi-agent work. It is Apache 2.0 licensed.
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About Cayu
Cayu is listed in our frameworks category and is aimed at builders. Cayu is an open-source Python framework for building and running domain-specific, long-horizon agents on a durable runtime. Sessions survive restarts and redeploys from SQLite or Postgres stores, tool policies can require human approval before side effects, spend caps are checked before each model call, and timers, background tasks, subagents and forks cover longer multi-agent work. It is Apache 2.0 licensed. Pricing, as the maker states it: Open source. Maturity: Active. We last checked the official link on 2026-10-22.
Cayu at a glance
- Category: Frameworks
- Built for: Developers and teams building with AI agents
- Pricing: Open source (as the maker states it)
- GitHub: cayu-dev/cayu · 922 stars (as of Oct 22, 2026)
- Official site: cayu.dev
- Listed on AgentScout: Oct 22, 2026
Cayu FAQ
What is Cayu?
Cayu is an open-source Python framework for building and running domain-specific, long-horizon agents on a durable runtime. Sessions survive restarts and redeploys from SQLite or Postgres stores, tool policies can require human approval before side effects, spend caps are checked before each model call, and timers, background tasks, subagents and forks cover longer multi-agent work. It is Apache 2.0 licensed.
How much does Cayu cost?
Cayu's pricing, as the maker states it: Open source. Open-source tools are free to use, though you may still pay for model API usage or a hosted plan. Check the official site for current plans.
Where can I find Cayu's source code?
On GitHub at cayu-dev/cayu, which had 922 stars as of Oct 22, 2026.
What are alternatives to Cayu?
Similar tools include Agno, AgentScope, CAMEL, Antigravity SDK, Unreal Agent and BabyAGI.
Facts from our link-checked listing, the GitHub repository and the official site. See something wrong? Suggest an edit.
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Cayu alternatives
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Antigravity SDK
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Unreal Agent
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BabyAGI
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