v0-cli

Command-line tool for creating, refining, and listing AI-generated websites using v0.dev API without interactive prompts.

v0-cli — AI Agent Skill Reference

A CLI tool for creating and iterating on websites using v0.dev from the terminal. Designed for machine/agent use — no interactive prompts.

Prerequisites

• Node.js >= 18
• V0_API_KEY environment variable set (obtain from https://v0.dev/chat/settings/keys)
• Dependencies installed: npm install in this directory

Invocation

node /path/to/v0-cli/src/index.js <command> [options]

Or if installed globally (npm install -g @hlongvu/v0-cli):

v0 <command> [options]

---

Commands

create — Create a new website

v0 create <prompt> [options]

Arguments:

• prompt (required) — Natural language description of the website to generate.

Options:

Flag	Description	Default
-p, --privacy <privacy>	public, private, or unlisted	public
-s, --system <system>	Custom system prompt for the AI	—
--no-open	Skip opening the browser after creation	opens browser

Examples:

# Create and skip browser open (recommended for automation)
v0 create "A dark SaaS landing page with hero, features, and pricing" --no-open

# Create private chat with custom system prompt
v0 create "Admin dashboard" --privacy private --system "Use shadcn/ui components"

Output (stdout):

  Chat ID:  <chatId>
  Preview:  https://v0.app/chat/<chatId>

Key output to parse: Chat ID: line — extract the chatId for follow-up chat calls.

---

chat — Send a message to an existing chat

v0 chat <chatId> <message>

Arguments:

• chatId (required) — The ID of an existing v0 chat.
• message (required) — The refinement message to send.

Output (stdout):

  Chat ID: <chatId>
  Name:    <name>
  URL:     <url>

  v0: <streamed response text>

  Preview: https://v0.app/chat/<chatId>

Examples:

v0 chat abc123xyz "Add a dark mode toggle to the header"
v0 chat abc123xyz "Make the layout responsive for mobile"

---

list — List all chats

v0 list [options]

Options:

Flag	Description	Default
-l, --limit <n>	Max number of chats to display	20

Output format:

   1. <name> [public] 3/31/2026
      ID:  <chatId>
      URL: https://v0.app/chat/<chatId>

---

Automation / Agent Workflow

IMPORTANT — v0 create timeout handling: v0 create can take a long time to complete and may time out before returning output. If the command times out or the output is lost:

• Do NOT rerun v0 create — the project may already have been created.
• Run v0 list to check if the chat was created, then use its chatId to continue.

# 1. Create a site, capture chatId
output=$(v0 create "A portfolio site with dark theme" --no-open 2>&1)
chatId=$(echo "$output" | grep "Chat ID:" | awk '{print $NF}')

# If chatId is empty (timeout / lost output), check if it was already created:
# v0 list --limit 5
# Then extract the chatId manually from the list output.

# 2. Send refinement messages
v0 chat "$chatId" "Add a contact form section"
v0 chat "$chatId" "Make the layout responsive for mobile"

# 3. List all chats
v0 list --limit 10

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Environment Variables

Variable	Required	Description
V0_API_KEY	Yes	API key from https://v0.dev/chat/settings/keys

---

Error Handling

Scenario	Behavior
Missing V0_API_KEY	Prints instructions and exits with code 1
Invalid API key (401)	Prints error with link to settings page
Chat not found (404)	Prints error and exits with code 1
Rate limit (429)	Prints error message from API