OpenAI AgentKit
by OpenAI
OpenAI's toolkit to build, deploy, and optimize agents from prototype to production
Last reviewed 2026-06-19
OpenAI AgentKit is a platform of building blocks for creating, deploying, and optimizing AI agents, announced at OpenAI DevDay in October 2025 and built on OpenAI's Responses API and Agents SDK. It is aimed at developers and engineering teams, and at enterprises via its admin-governed connector catalog. AgentKit shipped with four headline components: Agent Builder, a visual drag-and-drop canvas for composing multi-step, multi-agent workflows with code export to the Agents SDK; ChatKit, an embeddable, brandable chat UI; the Connector Registry, an admin-governed catalog linking agents to internal systems and third-party tools via prebuilt connectors and MCP servers; and Evals plus Guardrails for testing and safety. Note that in June 2026 OpenAI announced it is winding down Agent Builder and the Evals platform (shutting down November 30, 2026), steering users to the Agents SDK and ChatGPT Workspace Agents, while ChatKit and Guardrails persist.
What it can do
Visually build multi-step agent workflows
SupervisedAgent Builder offers a drag-and-drop canvas of typed nodes (agents, tools, branching) with preview, versioning, and code export to the Agents SDK.
sourceEmbed a branded agent chat UI
CopilotChatKit drops a customizable chat interface into an app or into ChatGPT.
sourceConnect agents to external tools and data
SupervisedThe Connector Registry provides admin-governed prebuilt connectors (Google Drive, SharePoint, Teams) and third-party MCP servers.
sourceApply safety guardrails
AssistantGuardrails, an open-source modular layer, masks PII and detects jailbreaks plus moderation and hallucination checks.
source
Strengths
- +Lowers the barrier to production agents with a visual builder, embeddable chat UI, connectors, evals, and guardrails in one stack
- +Native to OpenAI's API ecosystem with MCP and prebuilt enterprise connectors, plus code export to the Agents SDK
- +ChatKit and Guardrails are open-source
Limitations
- −Major lifecycle risk: Agent Builder and Evals are being deprecated (shutdown November 30, 2026) about a year after launch
- −Usage-based pricing makes total cost hard to predict for heavy multi-step agents
- −Guardrails are not a complete security strategy on their own
Overview
OpenAI AgentKit is a set of building blocks for taking agents from prototype to production, announced at DevDay in October 2025 and built on the Responses API and Agents SDK. It targets developers, with enterprise reach via its connector catalog.
What it does
Agent Builder is a visual canvas for composing multi-step, multi-agent workflows with typed nodes, branching, versioning, and export to the Agents SDK. ChatKit embeds a branded chat UI. The Connector Registry links agents to internal systems and third-party tools through prebuilt connectors and MCP servers. Evals provided trace grading and prompt optimization, and Guardrails adds safety checks.
Integrations & setup
It connects to Google Drive, SharePoint, Teams, and Dropbox, and to third-party MCP servers, and uses function-calling and the Responses API. Models are OpenAI's GPT family.
Pricing
No separate subscription. Designing workflows is free; you pay standard OpenAI API model and tool usage.
Status
Marked deprecated because two of its four headline components are sunsetting. In June 2026 OpenAI announced it is winding down Agent Builder and the Evals platform (shutdown November 30, 2026), steering users to the Agents SDK and ChatGPT Workspace Agents. ChatKit and Guardrails remain.
Best for / not for
Best for teams already on OpenAI who want a fast path to embeddable, connected agents, with awareness of the builder's deprecation. Less suited to teams wanting a stable, long-lived visual builder.
Alternatives
Dify, Stack AI, and Vellum are agent-building platforms; the OpenAI Agents SDK is the code-first path OpenAI now steers builders toward.
What people are saying
We aggregate real LinkedIn discussion into sentiment for the agents people search most. OpenAI AgentKit isn't tracked yet, want it added? Request tracking.
FAQ
Is OpenAI AgentKit still fully available?+
Partly. ChatKit and Guardrails persist, but OpenAI announced in June 2026 that Agent Builder and the Evals platform are being wound down, shutting down on November 30, 2026, with users steered to the Agents SDK and ChatGPT Workspace Agents.
Does AgentKit cost extra?+
There is no separate AgentKit subscription. Building in Agent Builder is free; you pay standard OpenAI API model and tool usage.
Sources
- Introducing AgentKit (OpenAI) · accessed 2026-06-19
- Agent Builder (OpenAI API docs) · accessed 2026-06-19
- Deprecations (OpenAI API) · accessed 2026-06-19
- OpenAI launches AgentKit (TechCrunch) · accessed 2026-06-19
Last reviewed 2026-06-19