Introduction

What doc0 is, why it exists, and who it's for.

doc0 is terminal-native documentation. You browse docs in a Terminal UI. Your AI assistant runs the exact same CLI via MCP. Both hit the same local cache.

There is no doc0-hosted backend. Docs live in:

~/.d0/docs-store — pages doc0 has ingested, cached locally
~/.d0/bundles — Markdown bundles you've installed
~/.d0/community-registry.json — a daily-refreshed snapshot of the community registry
~/.d0rc — your per-user config (registry URL, keybindings, etc.). Open it any time with doc0 config edit; see Configuration for the full schema.

Why

Reading docs should not require a browser. Every time you switch context from your editor to Chrome to find stripe.webhooks.constructEvent, you break flow. doc0 is the fix.

And your agent is worse off than you are: it reads docs by round-tripping through a search engine, then fetching HTML, then stripping chrome. doc0 gives it the same pre-scoped, cached Markdown you see.

Three commands to know

doc0 ls                       # what's installed + what the community registry offers
doc0 stripe                   # open the TUI on Stripe's docs (resolves from the registry)
doc0 mcp                      # stdio MCP server on this machine, for your agent

That's most of it. See Getting started to install.