AgentKit: OpenAI's no-code agent builder is here

OpenAI's AgentKit is the company's most direct play for businesses that want to build agents without hiring a developer. It is three products that fit together. Some are generally available, some are in beta. All are included in standard API pricing — no separate AgentKit subscription.

Agent Builder: the visual canvas

Agent Builder is a drag-and-drop interface for composing multi-agent workflows. You add nodes — tools, models, guardrails, branching logic — and wire them together. You can run preview executions, configure evals inline, and version the whole workflow. Currently in beta.

The closest comparison is Notion's Custom Agent builder, but Agent Builder is meant to live inside your own product or backend rather than inside a Notion workspace. If you have a custom app and you want to bolt an agent into it, this is the path.

Connector Registry: managed integrations

The Connector Registry is OpenAI's centralized list of pre-built connections — Dropbox, Google Drive, Sharepoint, Microsoft Teams — plus a growing list of third-party MCP servers. Admins control which connectors are available across the org. Currently rolling out in beta to API, ChatGPT Enterprise, and Edu customers.

For a small business, this is the part that matters most. The bottleneck in building agents has always been the plumbing — getting clean, permissioned access to Drive, your CRM, your ticketing tool. The Connector Registry is OpenAI taking that on so you do not have to.

ChatKit: embeddable agent UI

ChatKit is a toolkit for embedding a customizable chat experience into your own website or product. Generally available. If you have wanted to add an AI-powered chat to your customer support flow or a product walkthrough, ChatKit is the path that does not require building the chat UI yourself.

How it stacks up against the others

AgentKit's sweet spot is a business that has a custom app or website and wants to add an agent to it, with clean integrations to enterprise tools. Pick AgentKit if: you have a developer or technical partner, you want to embed agents into your own product, and your team lives in Google Workspace or Microsoft 365.

Pick Notion Custom Agents instead if your team already runs the business in Notion and you want to keep things in one place. Pick Claude Skills if you want general-purpose agents that work in chat across whatever tools you have. Pick Hermes if you need to self-host.

What we would do this month

If you have a custom client portal, a booking flow, or a product walkthrough that confuses users, embed ChatKit with a focused agent behind it this month. It is the fastest way to get measurable value out of AgentKit while Agent Builder finishes its beta. ChatKit is GA, the connectors plug into the tools you already use, and you can ship it in a week.

For the broader picture of why all four agent platforms shipped within 90 days and what to do about the convergence, see our hub piece on the spring 2026 agent wave.