Standards: Say Hello to the Agentic Resource Discovery (ARD) Specification

From PC World:

That chaotic, 1995-era state of the web is similar to where we are now with the “agentic” web. Just like users struggled to find URLs back in those days, so do AI agents struggle to find the tools they need to actually get things done online. When you ask an AI agent to book you a dinner reservation and it can’t, that’s a symptom of an agent that can find the right tool for the job.

That brings us to a new standard called Agentic Resource Discovery, or ARD for short. Developed with the backing of Google, Microsoft, Nvidia, and other tech giants, ARD is a standardized “discoverability” layer that allows an online service to say to the world, “Here’s what I am, here’s what I do, and here’s my menu of AI tools.” That information could then be crawled, indexed, and ranked by agentic discovery services, which in turn could be searched by AI agents. 

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More About the ARD Specification From Google:

…Agentic Resource Discovery (ARD), [is] an open specification for publishing, discovering, and verifying AI capabilities across the web. Developed with partners across the industry, ARD allows tools and services to be securely shared and connected, regardless of their underlying framework, protocol, or provider.

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This architecture relies on two primitives: catalogs and registries.

• Catalogs: To make resources discoverable, an organization publishes a catalog describing its available capabilities. Because these catalogs are hosted directly under the organization’s own domain, ownership of that domain serves as the cryptographic foundation for identity and trust.
• Registries: Registries act as search engines for the agentic web. They crawl published catalogs, index their contents, and make them searchable. When an agent submits a discovery request, a registry returns matching capabilities along with the metadata required to verify the publisher and establish trust before connecting.

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