Notion Developers has introduced what it calls the "External Agents API," a feature meant to bring "any agent into Notion," including agents built by users themselves. The post also states that Notion has partnered with Claude, OpenAI Codex, Decagon, Cursor, Warp, Cognition, Flora, Amplitude, Console, and Serval so they "work out of the box."
According to the post, having these agents inside Notion would make their work "visible, reviewable, and actionable" alongside team work, while reducing the need to copy and paste context between tools. Notion also points to a waitlist for the External Agents feature.
In a demo shared by the company, Notion states that it is adding the ability to take agents that run outside of Notion on other providers and interact with them in the Notion UI, "just like any other collaborator." The company also says it is working with creators of coding agents like Codex, Claude, and Cursor, as well as partners such as Decagon for customer support and Amplitude for product analytics.
The demo follows a software development task inside Notion. A Claude agent is started from a rough spec and writes a technical plan after connecting to a code repo through a sandbox computer on the Claude Managed Agent's platform. The agent then raises a product-direction question, prompting a thread with a product manager. When she does not know the answer, she tags in a Decagon agent to gather quotes from users about the problems they are experiencing.
With that context in place, the implementation plan is reviewed, a comment is left for an engineer, and Claude is then asked to build the feature. The agent returns a pull request, after which Codex is brought in for a first-pass review. According to the demo, it surfaces a few comments and pushes updates.
Source: Notion Developers
