Runlayer Sues Rippling Over Alleged Theft of MCP Gateway Tech

Runlayer, a venture-backed startup that builds secure Model Context Protocol (MCP) gateways, has sued HR-tech giant Rippling for allegedly copying its core product after a year-long trial. The dispute pits a $42 million-funded startup against a corporate heavyweight and raises fresh questions about how fledgling AI-infrastructure firms protect intellectual property when courting large-scale customers.

The MCP Gateway and the Trial That Turned Host

MCP, an open-source protocol released by a major AI developer in November 2024, now powers connections between AI models, agents, external data and tools. Startups and established software firms race to sell the secure layer that protects those connections.

Runlayer signed a product-trial agreement with Rippling that included an NDA and a clause forbidding Rippling from copying or deriving anything from Runlayer’s work. During the trial, Runlayer handed over its roadmap, source code and other sensitive details. The collaboration collapsed when the two sides could not agree on a pricing model. Days later, Runlayer’s CEO received a text from a “Rippling insider” saying the company was building a project that was “almost a 1 to 1 copy” of Runlayer’s technology.

Rippling’s Counter-Claim

Rippling has not denied building its own MCP gateway, but it rejects the theft accusation. A spokesperson called the lawsuit a “panicked effort” by Runlayer and said Rippling’s product is a superior design based entirely on its own research. The company insists its gateway was not derived from Runlayer’s material and that the legal claim is unfounded.

Stakes for Startups in the AI-Infrastructure Race

  • Financial exposure. Runlayer, which raised $42 million from investors such as Khosla Ventures and Felicis, now must pay a heavyweight law firm to defend its invention.

The Bigger Picture: Build-vs-Buy in AI

The build-or-buy tension isn’t new, but the MCP gateway case shines a spotlight on it in the AI era. Enterprises that need secure, scalable AI connections may treat a trial as a shortcut to an in-house solution. For startups, the trade-off is clear: a trial can win a customer but also lay bare the assets that make the product valuable.

Takeaways

  • IP protection in trials: Sharing full source code and roadmaps during a test phase can expose startups to theft, especially when the customer is a large, technically capable firm.
  • MCP market surge: The protocol’s rise has flooded the market with gateway providers, turning every claim of originality into a potential flashpoint.
  • Build vs. buy tension: The lawsuit highlights a growing conflict where enterprises use vendor trials as blueprints for internal development, challenging the sustainability of licensing-based business models.