Communications software provider Sinch has been named a Marketplace Partner in the SpaceX Super Intelligence (SpaceXSI) Partner Network, giving developers building in Grok Build, the AI coding platform formerly known as Cursor, direct access to its voice, verification, messaging and email tools.

Communications tools built into the coding workflow

Through the partnership, developers using Grok Build can add Sinch‘s communications capabilities while building and testing applications, rather than integrating them separately later. The Sinch plugin, available now on the Cursor Marketplace, bundles the company’s Model Context Protocol (MCP) server and 15 Skills into a single installation, giving developers and AI coding agents access to Sinch’s API documentation and tools without searching for it manually.

“Grok Build is massively expanding what developers can develop, and Sinch makes sure what they build can reach customers in production,” said Petter Bengtsson, senior vice-president of AI ecosystem and partnerships at Sinch. “Through the SpaceXSI Partner Network, Sinch is closing the gap between working code and production-ready customer communications.”

Built to scale from first user to millions

Sinch said the integration runs on its existing carrier-grade infrastructure, so applications built through the plugin can scale without requiring developers to re-architect their communications systems as usage grows. The move is part of a wider push by the company to embed its messaging, voice and email infrastructure directly into AI-assisted software development tools, rather than leaving it to be bolted on after an application is built.