Since the beginning of September, CaoCao Inc. (2643.HK) has continued to expand its ecosystem of AI device partnerships. Following its launch on Doubao AI phones, CaoCao’s AI ride-hailing service officially integrated with HONOR YOYO on September 15 and received the “Innovative Partner” award at the 2026 HONOR Global Developer Conference. On September 17, CaoCao announced the integration of its AI ride-hailing service with OPPO Breeno Next.
Following the announcements, CaoCao’s shares extended their gains, rising more than 20% over two days.
With HONOR YOYO, users can simply state their ride needs. YOYO can automatically identify pickup and drop-off points, match users with CaoCao’s mobility resources, select an appropriate vehicle type and route, and complete the booking. In this collaboration, CaoCao opened up caocao-cli for the first time, a standard interface that enables AI agents to invoke CaoCao services, making CaoCao the first platform in the AI mobility sector to use CLI-based integration with on-device agents. The interface introduces a unique idempotency key, an explicit confirmation flag and a unified Trace ID, ensuring that network retries do not result in duplicate bookings, critical actions require user confirmation, and the entire service chain is traceable and auditable.
With OPPO Breeno Next, users can search for CaoCao’s AI agent, “Xiao Cao,” and state their ride needs in natural language. They can then compare fares across vehicle types, book a ride with one tap and track their trip directly within the interface. In this collaboration, CaoCao upgraded caocao-mcp, its unified standard protocol that enables AI agents to invoke CaoCao services, making CaoCao’s AI ride-hailing service the first AI mobility service in Breeno Next to support UI interaction. Depending on agent capabilities, caocao-mcp also supports multiple interaction formats, including text, web pages and interactive cards.
From Doubao AI phones to HONOR YOYO and OPPO Breeno Next, CaoCao’s AI ride-hailing service is becoming available across a growing range of endpoints. Building on its scalable, systematic capabilities in fleet dispatching, asset management, user services and compliance operations, CaoCao has enabled efficient connections between AI agents and mobility resources on its platform.