Voiden.md is an offline-first, Git-native API workspace that unifies specs, docs, tests, and mocks using programmable Markdown blocks. Build APIs the way you actually work.

Traces, evals, prompt management and metrics to debug and improve your LLM application. Integrates with Langchain, OpenAI, LlamaIndex, LiteLLM, and more.

There is a prevailing notion in web development that the frontend—the discipline of creating what someone can see and do on a website or web app—is the only place you need to consider accessibility. This simply isn’t true. Accessibility is a holistic practice that touches every aspect of creating a digital experience. This means it is also a backend web development consideration.