Vendo (YC S26) lets SaaS users build custom features inside products via AI

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Vendo, founded by Yousef and Nour and backed by Y Combinator (S26), is a platform that enables end-users to create custom features—such as dashboards, workflows, and automations—directly within the SaaS products they already use. Developers integrate Vendo via a CLI tool that reads their product's API, theme, and routes, allowing AI-generated React components to look native and interact with existing data. To prevent security risks, generated code runs inside a sandboxed QuickJS virtual machine with no direct DOM or network access, communicating with the host product only through guarded API calls. The platform targets a common SaaS pain point: the backlog of customer-specific feature requests that are too niche for a shared roadmap but too costly for one-off engineering work. Current use cases include custom reporting dashboards, recurring cross-tool automations, and business-logic customizations for B2B clients.

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