> ## Documentation Index
> Fetch the complete documentation index at: https://upstash.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

The **Agents API** of Upstash Workflow enables you to:

* Execute an individual agent or facilitate collaboration among multiple agents.
* Integrate any tool compatible with AI SDK or LangChain.
* Reliably invoke agents without concerns about timeouts or transient errors.
* Unlike mainstream agent frameworks, we prioritize debuggability and extensibility.

To get started, you can refer to the [Getting Started page](/workflow/agents/getting-started). For more details about the features, you can refer to [the Features page](/workflow/agents/features).

<Note>
  This feature is not yet available in
  [workflow-py](https://github.com/upstash/workflow-py). See our
  [Roadmap](/workflow/roadmap) for feature parity plans and
  [Changelog](/workflow/changelog) for updates.
</Note>

## Agent Patterns

If you're interested, you can also explore our rich examples that showcase how various patterns can be built using the Agents API:

<CardGroup cols={2}>
  <Card title="Prompt Chaining" icon="link" href="/workflow/agents/patterns/prompt-chaining">
    Sequential LLM calls where each output becomes the input for the next, enabling structured reasoning and step-by-step task completion.
  </Card>

  <Card title="Evaluator-optimizer" icon="arrows-rotate" href="/workflow/agents/patterns/evaluator-optimizer">
    A feedback loop where LLM outputs are evaluated and refined iteratively to improve accuracy and relevance.
  </Card>

  <Card title="Parallelization" icon="arrows-to-dot" href="/workflow/agents/patterns/parallelization">
    Distribute tasks across multiple LLMs and aggregate the results for efficient handling of complex or large-scale operations.
  </Card>

  <Card title="Orchestrator-workers" icon="sparkles" href="/workflow/agents/patterns/orchestrator-workers">
    A central orchestrator directs multiple worker LLMs to complete subtasks and synthesize their outputs for complex operations.
  </Card>
</CardGroup>

<Snippet file="workflow/agent-examples.mdx" />