Postman AI Agent Builder

Effortlessly discover, test, and integrate APIs and LLMs to accelerate agent development.

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Postman AI Agent Builder hero. Illustration.

Simplify and accelerate creation of functional AI agents

Build smarter agents with a comprehensive suite of tools that puts discovery, testing, and deployment at your fingertips.

AI agent landscape overview. Infographic.

Effortless LLM testing and evaluation

Simultaneously test prompts, responses and performance of multiple LLMs.

Instant tool readiness

Instantly turn APIs into agent-ready tools for seamless integration - no coding required.

Accuracy with verified APIs

APIs from verified partners ensure agents are powered by accurate and reliable tools.

Centralized LLM and API discovery

Easily find the necessary LLMs and APIs for your agent from a network of 100k public APIs.

No-code, modular development

Scaffold multi-step agent workflows with no complexity using a visual canvas.

Simplified agent testing

Test agentic workflows locally, ensuring accurate and reliable outputs across a variety of scenarios.

Be the first to know! We're making AI agents easier to build and smarter. Sign up for the latest updates, best practices, and more.

Effortlessly test API and LLM performance

Compare responses, cost, and performance of LLMs to choose the right model.

Test now →

Simplify agent and workflow design

Use a visual, no-code canvas to easily build agents and configure multi-step workflows.

Build now →

Streamline and scale tool generation

Use our APIs to instantly generate tools that can be used on Postman or your own development environment.

Generate tools →

There's more on our roadmap!

We're making agent building easier, faster, and smarter. Sign up for the latest product updates and sneak peeks, including:

Seamlessly deploy your Agents and Workdlows to the Cloud. Icon.

Seamlessly deploy your agents and workflows to the cloud, enabling them to run and integrate effortlessly with external services.

Gain visbibility into your deployed Flows. Icon

Gain visibility into your deployed Flows with real-time monitoring, ensuring optimal performance and proactive issue detection.

All the LLMs and APIs for your agent, all in one place.

Explore LLMs and APIs from over 18,000 companies on the Postman API Network to create functional, reliable agents.


See AI Agent Builder in action

Explore our guided demos below and start building your AI agent today! Check out our complete YouTube playlist for more. Watch now →

Integrate

Learn how Postman's new AI protocol simplifies LLM integration into your development workflow.

Evaluate

Discover two powerful methods for evaluating and comparing LLMs.

Build

Learn to build an event-driven agent that dynamically routes customer queries and processes responses.

Build

Learn to build an autonomous AI agent that manages incidents, analyzes Slack, and creates documentation.

Get started with Postman AI Agent Builder

Effortlessly discover, test, and integrate APIs and LLMs to accelerate agent development. Postman's unified suite of solutions streamlines building of functional agents, letting you focus on innovation.

Postman AI Agent Builder. Illustration.
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June 3 & 4, 2025 in Los Angeles, CA

Step into the future of APIs and AI at POST/CON 25. Join developers, architects, and tech leaders to build smarter, faster, and more secure APIs in the age of generative AI.