# OpenFile with v0

Source: https://joinopenfile.com/docs/agents/v0
Index: https://joinopenfile.com/llms.txt

Connect v0 to the OpenFile [MCP server](https://joinopenfile.com/docs/mcp.md) and it can check names, price filings and prepare them. It needs no key or account.

## Connect

Press **+** in the prompt box, open **MCPs** and add a custom server with this address and **No Auth**:

```text
https://mcp.joinopenfile.com
```

v0 uses these tools while it builds, not inside the app it makes.

## Try it

Ask v0 something like:

- "Form a Wyoming LLC for my candle business."
- "Is QUILLBROOK likely to be refused as a trademark for candles?"
- "What would it cost to file a trademark in two classes?"
- "Where is my order?"

v0 calls `plan_task` first, so it asks the person what it needs instead of guessing.

## What you still do yourself

v0 prepares the draft and sends the owner a link. They open it, check every answer and sign. An agent can't sign for them, and it never handles a Social Security number. [Why the owner signs](https://joinopenfile.com/docs/mcp.md#how-an-agent-files).

## Check it worked

Ask v0 to list its OpenFile tools. You should see `plan_task`, `create_formation` and `search_docs`.