Getting started

Install

npm install -g doczero

Requires Node 22.13+. No Rust, no native binaries, no database.

The binary installs as doc0 (primary) with d0 as a short alias. Every example below works with either — use whichever your fingers prefer.

Browse something

Every registry entry is addressable by id:

doc0 ls                       # list every entry doc0 knows about
doc0 stripe                   # open the TUI on Stripe docs
doc0 stripe search webhooks   # full-text search inside a bundle / URL source
doc0 stripe read webhooks/quickstart --raw   # dump a page as Markdown

The first call to a URL source fetches llms-full.txt when available (one HTTP call, whole corpus), falls back to sitemap + llms.txt otherwise, and caches everything for 24 hours.

You can also point doc0 at a docs URL directly — no registry entry required:

doc0 https://nextjs.org/docs              # open the URL TUI
doc0 read https://docs.stripe.com/webhooks # print a single page as Markdown
doc0 search https://vercel.com/docs caching

Add your own docs

doc0 add ./my-docs            # any folder with .md / .mdx
doc0 @local/my-docs           # browse it in the TUI

doc0 infers the bundle name from package.json or the folder name, extracts headings for nav, and indexes everything with MiniSearch.

Wire up your agent

doc0 mcp install              # interactive picker: Cursor, Claude Code (coming), Windsurf (coming)
doc0 mcp install --cursor     # skip the prompt, install straight into ~/.cursor/mcp.json
doc0 mcp                      # or run the stdio MCP server manually

See MCP for the tool schema, every install flag, and installed-only mode.

Tweak anything

Every configurable knob — theme, output format, registry URL, keybindings, default bundles — lives in ~/.d0rc:

doc0 config edit      # opens $VISUAL/$EDITOR; creates a commented template on first run
doc0 config show      # print the effective config (file + env vars + defaults)

Full schema and env-var reference: Configuration.