AI agents can discover products through web search, pages they browse, third-party sources, directories, or tools already available in their environment. There is no single directory that every agent checks. The route depends on the user’s task and the agent’s access.

Discovery is a chain, not a single ranking

An agent trying to solve a task may first search for the category, then investigate a shortlist, then open documentation or a booking page. It can return to search when a source leaves a question unanswered. Your homepage may be only one stop, or it may never be opened.

For example, Google describes query fan-out in its AI features: related searches across subtopics and sources can help construct an answer. This is a documented Google behavior, not a claim about every assistant. Google’s AI features guidance.

Five routes worth mapping

RouteWhat introduces youWhat to prepare
Web searchA relevant result for a customer taskA useful, accessible page with a clear next step
Third-party evidenceA review, comparison, reference, or cited sourceAccurate identity and claims the source can substantiate
DocumentationA recipe, API reference, or integration exampleInputs, outputs, limits, authentication, and completion
DirectoriesA category or product listingCorrect metadata and a working destination
Connected toolsAn installed or configured integrationDescriptive operations and reliable task completion

These routes overlap. A directory can lead to documentation; a review can lead to a product page; a search can uncover a tool listing. A listing is useful only if a relevant system or user actually encounters it.

A registry is not automatic installation

The MCP Registry publishes server metadata for clients and aggregators to consume. It is a distribution surface, not a promise that a particular assistant will install or call your server. A host can curate its own catalog or require an operator to connect a server. MCP Registry overview.

The same distinction applies to tool search. An application may search a set of tools it has made available; that does not imply a search of every API on the internet. OpenAI documents tool search as a way to discover and load deferred tools configured for an application. OpenAI tool search.

Start with a route hypothesis

Write a testable sentence: “A coding agent helping a developer extract invoice line items can encounter our task guide through web search, then reach our trial and complete an extraction.” Name the source page, intended query, next step, and expected output.

Test both discovery and use. In a discovery test, do not provide your brand name or preinstall your integration. In a separate adoption test, deliberately provide the product and examine whether the agent can use it. The second test reveals friction, but cannot prove the first route works.

What success looks like

A credible record includes the user task, environment, sources retrieved, page or tool selected, and observable result. A screenshot of an answer mentioning the company is evidence of a mention in that run. It is not evidence of an independent customer, referral, or sale. Keep those outcomes separate as you improve the path.

Primary sources

Put the next step to work.

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