Public chat API changelog

This page lists every version of the public chat API. The current version is 1.0. Minor versions add things and keep existing clients working. Major versions can break clients and come with a deprecation period. See the versioning and deprecation policy.

1.0 (2026-09-09)

Added

• First versioned release of the public chat API, under /public/v1/agents/{embedToken}/.
• Five routes: agent configuration, create a session, read a session, read MCP App card HTML, send a message and stream the reply.
• The reference page documents the routes, the server-sent events, the error codes, the CORS behavior and the limits.

Migration

• None. This is the first published version of the contract.