Why Chainless?

Building LLM-powered systems should not require adopting massive, over-engineered agent frameworks.
Most existing solutions are complex, heavyweight, or tightly coupled to one ecosystem — slowing down experimentation and making simple ideas unnecessarily difficult.

Chainless was created as a response to that problem.

A Framework That Doesn’t Get in Your Way

Chainless focuses on being minimal, transparent, and developer-first.
It gives you the essential building blocks — Agents, Tools, TaskFlows, and FlowServer — without forcing a particular architecture or hiding the internals behind abstraction layers.

You stay in control.
You decide how the flow works.
Chainless simply executes what you design.

Built on Real Developer Pain Points

Chainless exists because building multi-step LLM workflows should be:

• Understandable — no magic states, no hidden graph logic.
• Composable — tools, flows, and agents connect naturally.
• Debuggable — you always see what the model does, why it did it, and which tool was used.
• Fast to prototype — create a flow or expose it as an API in minutes.
• Flexible — sync/async tools, structured outputs, multi-agent pipelines, everything works without friction.

Not Trying to Replace Big Frameworks — Just Trying to Fix What’s Missing

Chainless is not meant to compete with massive agent ecosystems.

It is meant to be:

• The framework you choose when others feel too big.
• The tool that lets you build your own logic cleanly.
• The middle ground between “toy examples” and “enterprise agent OS”.

If you want a framework that is:

• lightweight but powerful,
• simple but extensible,
• small but capable,
• and transparent from top to bottom…

Chainless exists for you.