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Cycls provides the complete infrastructure to build, run, and ship your agents:
  • Open-source SDK that manages dependencies, context, and UI directly in Python, auto-compiling everything into a portable Docker container. Zero Dockerfiles, YAML, or config required.
  • Agent Runtime that wraps your code in a pre-built FastAPI app. Includes a secure REST API, web interface, and OpenAI-compatible endpoint out of the box.
  • Serverless Cloud to build and deploy your agents instantly. Just call app.deploy() and we handle the remote build, serverless hosting, and auto-scaling, giving you a live public link (e.g., agent.cycls.ai) with built-in authentication and monetization.

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Example

Here is an example of an Agent that defines its own environment, connects to OpenAI, and serves a secure chat interface—all in one file. 
import cycls

# Define your app with dependencies declared in the decorator
@cycls.app(pip=["openai"])
async def app(context):
    from openai import AsyncOpenAI

    client = AsyncOpenAI()
    response = await client.chat.completions.create(
        model="gpt-4o-mini",
        messages=context.messages,
        stream=True
    )
    async for chunk in response:
        content = chunk.choices[0].delta.content
        if content:
            yield content

# Run locally for development
app.local()
Here is how the agent looks in action:

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The AI Distribution Layer

Building agents is easy; distributing them is hard. Cycls handles the four pillars of distribution so you can focus on your code:
  1. Instant Interfaces: Cycls auto-generates responsive web UIs with native UI components (thinking bubbles, code blocks, tables, callouts, images) that stream progressively.
  2. Zero-Config Auth: Enterprise-grade user management is enabled by default. Secure login, session management, and user gating are built-in.
  3. Serverless Hosting: From localhost to a global URL in one command. We handle the scaling, the SSL, and the server management.
  4. Native Monetization: Monetize your agent with Cycls Pass subscription integration.
Cycls is Framework Agnostic: It works seamlessly with LangChain, CrewAI, Agno, OpenAI, Anthropic, Groq, and any other Python library.

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Start Building

Ready to build your first agent? Check out our Quickstart guide to create your first AI agent in under 5 minutes.