Master Astro AI with our step-by-step tutorial, detailed feature walkthrough, and expert tips.
Explore the key features that make Astro AI powerful for enterprise agents workflows.
Postman AI Agent Builder is a feature within the Postman platform that enables developers to create AI agents capable of discovering, integrating, and interacting with APIs. It builds on Postman's existing API development tools, collections, and public API Network of over 100,000 APIs. It is cataloged in this directory under the name Astro AI for indexing purposes; the official Postman product name is AI Agent Builder.
While prior Postman experience is not strictly required, the platform is designed to leverage Postman's ecosystem — API collections, workspaces, monitoring, and the public API Network. Teams already using Postman will find the onboarding faster since agent configurations build on familiar concepts like collections and environments.
Standalone frameworks like LangChain and CrewAI provide general-purpose agent-building capabilities across many domains. Postman AI Agent Builder is specifically optimized for API interaction scenarios, offering structured discovery across its 100,000+ API catalog, OpenAPI-spec-aware request generation, and built-in OAuth 2.0 and API key authentication handling. The trade-off is breadth versus API-specific depth.
Agents can access any API configured in your Postman workspace, plus APIs from Postman's public API Network, which hosts over 100,000 documented APIs from providers including AWS, Stripe, Twilio, Salesforce, GitHub, and others. Custom APIs can be added by importing OpenAPI 3.x specifications, collections, or other API documentation formats that Postman supports.
Postman AI Agent Builder is included within Postman's pricing tiers: Free ($0), Basic ($14/user/month billed annually), Professional ($29/user/month billed annually), and Enterprise (custom pricing via sales). The free tier provides access to core features with usage limits. Specific AI Agent Builder quotas per tier may evolve, so verify current details at postman.com/pricing.
Now that you know how to use Astro AI, it's time to put this knowledge into practice.
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Tutorial updated March 2026