Vercel v0

Use Vercel v0 models for web development with Kern agents.

The Vercel v0 API provides large language models, designed for building modern web applications. It supports text and image inputs, provides fast streaming responses, and is compatible with the OpenAI Chat Completions API format. It is optimized for frontend and full-stack web development code generation.

For more details, refer to the official Vercel v0 API documentation.

Authentication

Set your V0_API_KEY environment variable. You can create an API key on v0.dev.

1export V0_API_KEY=your-v0-api-key

1setx V0_API_KEY your-v0-api-key

Example

Use V0 with your Agent. The following example assumes you have the V0 Python class (as you provided) located at kern/models/vercel.py.

1from kern.agent import Agent
2from kern.models.vercel import V0
3
4agent = Agent(
5    model=V0(id="v0-1.0-md"),
6    markdown=True
7)
8
9# Print the response in the terminal
10agent.print_response("Create a simple web app that displays a random number between 1 and 100.")
11
12# agent.print_response("Create a webapp to fetch the weather of a city and display humidity, temperature, and wind speed in cards, use shadcn components and tailwind css")

Note View more examples here.

Parameters

Parameter	Type	Default	Description
`id`	`str`	`"v0"`	The id of the Vercel v0 model to use
`name`	`str`	`"V0"`	The name of the model
`provider`	`str`	`"Vercel"`	The provider of the model
`api_key`	`Optional[str]`	`None`	The API key for Vercel v0 (defaults to V0_API_KEY env var)
`base_url`	`str`	`"https://api.v0.dev/v1"`	The base URL for the Vercel v0 API

V0 extends the OpenAI-compatible interface and supports most parameters from the OpenAI model.