Rippling Countersues AI Startup Runlayer in Escalating IP Battle
The HR software giant alleges patent infringement after Runlayer accused it of stealing trade secrets during a product trial.
HR software company Rippling has filed a patent infringement countersuit against AI startup Runlayer, escalating a legal battle over the development of AI infrastructure. The move follows an initial lawsuit from Runlayer alleging that Rippling misappropriated proprietary technology to build a competing product.
On August 10, 2026, Rippling filed its countersuit in Delaware federal court, alleging that Runlayer infringed on three of its patents. This action comes in response to a lawsuit filed by Runlayer on July 28, 2026, in the Southern District of New York. In that initial filing, Runlayer accused Rippling of unfair competition, breach of contract, and trade secret misappropriation. According to a Rippling spokesperson, it takes "a certain boldness" to accuse a competitor of violating intellectual property laws while allegedly infringing on that competitor’s own inventions.
The Root of the Dispute
The conflict centers on the Model Context Protocol (MCP), an open standard designed to allow AI agents to connect securely with external software and data. Runlayer, which has raised $42 million in funding from investors including Felicis and Khosla Ventures, provides a secure gateway for this protocol that incorporates governance and cybersecurity features.
The legal friction stems from a nearly year-long product trial. During this period, Runlayer shared its source code and product roadmap with Rippling under a mutual non-disclosure agreement (NDA) and trial agreement. Runlayer alleges that Rippling used this access to build a competing MCP gateway. The startup's claims are bolstered by an allegation that Runlayer CEO Andrew Berman received a text from a Rippling insider warning him that the company was building a "1 to 1 copy" of Runlayer's product.
Industry Implications
This clash highlights a precarious "buyer-beware" dynamic currently permeating the AI infrastructure market. As large tech firms with massive engineering resources trial niche startup products, the line between market research and intellectual property theft becomes blurred. The case serves as a critical test of whether traditional NDAs and trial agreements can protect small innovators when their technology is integrated into the ecosystems of much larger players.
For the broader AI sector, the outcome may define how "open standards" like MCP are commercialized. If large platforms can legally replicate the gateway layers provided by startups after a trial period, it could discourage venture capital investment in the middleware layer of the AI stack.
What's Next
Runlayer founder Andrew Berman has dismissed Rippling's countersuit as a "desperate, retaliatory ploy" intended to distract from the original trade secret allegations. The courts will now determine if Rippling's MCP gateway was an independent development or a derivative of Runlayer's proprietary code. Observers will be watching for the discovery phase to see if the alleged internal communications at Rippling provide a "smoking gun" regarding the intent to copy the startup's technology.