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cayu

Python runtime and framework for long-running agents, with durable sessions, approvals, spend caps and multi-agent collaboration.

Harness by cayu-dev

IndexedApache-2.0★ 927
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Install

From the package registry. Read the repository before you give any tool access to your data.

pip install cayu

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About

Cayu is a Python framework and runtime for long-running agents. It provides durable sessions in SQLite or Postgres that survive restarts, approval for tool calls whose policy requires it, spend caps checked before each model call, scheduled tasks, subagents, and adapters that run Claude Code or Codex as external agents. It is Python only and not a graph DSL, and it can run on your own infrastructure or on the optional Cayu Cloud.

Use cases: agent-orchestration

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Fact sheet

Languages
PythonREADME
Packages
cayu (pypi)README
Multi-agent
YesREADME
Memory
long-termREADME
Human in the loop
YesREADME
Deploys to
self-hosted, managed cloudREADME
Model providers
openaiREADME
Maturity
Betagithub.com

Facts extracted by Claude Haiku 5.5 from the linked sources on Oct 24, 2026. Wrong fact? Tell us.

Alternatives

Frameworks for the same language with a similar way of orchestrating agents.

Signals

Stars
927
Forks
103
Open issues
0
Weekly downloads
1,488
Last commit
Oct 23, 2026 (5 days ago)
Last release
Oct 23, 2026 (5 days ago)
Last package publish
Oct 23, 2026 (5 days ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Packages
pypi cayu
License
Apache-2.0
Website
cayu.dev/
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Cite this page

cayu. Agent Mart. https://agentmart.dev/harnesses/cayu (last updated 2026-10-24)