The Free Dev Docs Library is Vibgrate's free, version-correct documentation capability, surfaced publicly at /library and delivered locally through vg lib and Vibgrate AI Context. It answers a deceptively hard question: what does the version of this library that I actually depend on do?
This article is for developers who are tired of AI assistants citing the wrong version of a framework, and for leaders evaluating how to make AI-assisted development trustworthy.
Overview
Most documentation on the web is for whatever version was current when the page was written. Your project, meanwhile, is pinned to specific versions in its lockfile. The Free Dev Docs Library closes that gap by resolving documentation against the exact versions you depend on.
It draws from two sources:
- A hosted catalog of popular libraries, kept current.
- Local ingestion for libraries not in the catalog, built from what is installed in your project.
The result is documentation that matches your dependencies, available offline and feedable to any AI assistant.
See what is available
vg lib
This lists the libraries Vibgrate can serve docs for, resolved against your lockfile.
Why "free"
The Free Dev Docs Library requires no account and runs locally. It is the developer-facing label for free library docs via Vibgrate AI Context; you can explore it at /library. There is nothing to buy to get version-correct docs into your editor.
How it reaches your AI
The library is one of the three things Vibgrate AI Context serves over MCP. Start the local server and your assistant can pull version-correct docs on demand:
vg serve
From there, when you ask your assistant about a dependency, it can read the docs for the version you actually have installed instead of guessing.
What it is not
The Free Dev Docs Library is documentation, but Vibgrate AI Context is more than docs — it also serves your code map and drift. Do not think of the local context server as docs-only.
Related
- Listing libraries with
vg lib - Why version-correct docs matter for AI
- What Is Vibgrate AI Context?
- Explore the library at /library