Anthropic bought Stainless and shuttered its SDK generator. Cloudflare open-sourced Forge instead.

Cloudflare has announced an open source tool that takes an API definition and automatically produces the SDKs, command-line tools, documentation, and other interfaces used to interact with it.

Forge, as it’s called, is available under an Apache 2.0 license , and can be run and modified privately without paying Cloudflare a dime. In a blog post published on Monday by Dimitri Mitropoulos , Matt Taylor , and Samuel MacLeod , Cloudflare notes that the project is still early: it already generates the output required for Cloudflare's cf CLI , its unified command-line interface for working across the Cloudflare platform, with the company's API documentation and SDKs due to move over in the coming months.

“We believe that building tools for APIs is a core part of the Internet, and you should be able to do that without needing a SaaS product.”