AI Agent Builder offers one-stop solution combining LLMs, APIs, and visual workflows to streamline agent development

Postman, the world’s leading API collaboration platform, today announced the Postman AI Agent Builder, a revolutionary suite empowering developers to quickly design, test, and deploy intelligent agents by combining LLMs, APIs, and workflows into a unified solution. With centralized access to APIs from more than 18,000 companies, no-code modular development using Postman Flows, and built-in testing, Postman simplifies agent creation, enabling faster innovation and enhanced business efficiency.

The rise of agentic AI marks a pivotal shift in how software systems will be built and operated. Investors have already recognized this potential, pouring billions into startups focusing on enterprise applications in the past two years. By 2027, Deloitte predicts that half of companies that use generative AI will have launched agentic AI pilots or proofs of concept.

This shift is analogous to early mobile apps; while initially simple and disconnected from broader services, their utility soared when integrated with cloud services and transformed smartphones into a necessity for the modern world. Agentic AI shows the same potential to transform organizational productivity and efficiency. By combining AI services with API-driven architecture, agentic AI will enable organizations to create adaptive automations that can understand context, make decisions, and solve problems dynamically at scale.

“APIs are becoming a foundational building block for a new class of generative software applications. As agents gain traction, we could see a 10–100X increase in API utility, enabling software systems to execute increasingly complex workflows,” said Abhinav Asthana, co-founder and CEO of Postman. “Eventually humans will have the option to remove themselves or hand off certain workflows, allowing agents to automate processes — so long as the agents are built with the proper guardrails. With AI Agent Builder, Postman makes this simple to achieve at scale.”

Postman is used by more than 35 million developers and 500,000 organizations around the world. Now with AI Agent Builder, the company is setting an industry standard for building, testing, and deploying agents in one trusted, unified location. Key capabilities include:

• Centralized Platform for LLM & API Discovery: Quickly find the necessary LLMs and APIs through the Postman API Network: the world’s largest API hub, home to over 18,000 companies.
• Effortless LLM Testing & Evaluation: Streamline testing of LLM responses by using the Postman client, Collection Runner, or Postman Flows to test prompts and inputs for leading models including OpenAI’s ChatGPT, Google’s Gemini, Anthropic’s Claude, Cohere, and Meta’s Llama.
• Accuracy with Verified APIs: Leverage APIs from any of Postman’s verified publishers including Salesforce, PayPal, and UPS to ensure agents are powered by accurate and reliable tools.
• Ready-to-use APIs: Instantly turn APIs into agent-ready tools for seamless integration within developers’ preferred environment, removing the need to re-write boilerplate code for each tool.
• No-Code, Modular Development: Remove complexity with Postman Flows, a visual canvas that eliminates the need for coding when integrating APIs as agent tools and makes it easy to scaffold multi-step workflows with reusable modules.
• Simplified Testing: Test workflows locally, ensuring accurate and reliable outputs across a variety of scenarios without the complexity of managing testing infrastructure.

Visit Postman’s website to learn more about AI Agent Builder and Asthana’s perspective on the rise of agentic AI:

• Postman AI Agent Builder landing page
• Agentic AI: the rise of agents

About Postman

Postman is the world’s leading API collaboration platform, used by more than 35 million developers and 500,000 organizations, including 98% of the Fortune 500. In a world that is increasingly embracing an API-first mindset, Postman is uniquely positioned to streamline API and AI application development and drive innovation through teamwork by transcending traditional testing and fostering team collaboration across the entire API development lifecycle — from creation to deployment. The company is headquartered in San Francisco with offices in Bangalore and Tokyo. Postman is privately held, with funding from Battery Ventures, BOND, Coatue, CRV, Insight Partners, and Nexus Venture Partners. Learn more at https://postman.com or connect with Postman on X via @getpostman.

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