MCP server

What If Lab

hf/hra/what-if-lab

Checked 26 Oct 2026, 08:30 UTC · Hugging Face reports it running

what-if-lab with MCP

Working at last check

https://hra-what-if-lab.hf.space/gradio_api/mcp/

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:30 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http what-if-lab https://hra-what-if-lab.hf.space/gradio_api/mcp/

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.what-if-lab]
url = "https://hra-what-if-lab.hf.space/gradio_api/mcp/"

Gemini CLI

{"mcpServers":{"what-if-lab":{"httpUrl":"https://hra-what-if-lab.hf.space/gradio_api/mcp/"}}}

Cursor

{"mcpServers":{"what-if-lab":{"url":"https://hra-what-if-lab.hf.space/gradio_api/mcp/"}}}

VS Code

{"servers":{"what-if-lab":{"type":"http","url":"https://hra-what-if-lab.hf.space/gradio_api/mcp/"}}}

Antigravity

agy mcp add what-if-lab https://hra-what-if-lab.hf.space/gradio_api/mcp/

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"what-if-lab","server_url":"https://hra-what-if-lab.hf.space/gradio_api/mcp/","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"what-if-lab","server_url":"https://hra-what-if-lab.hf.space/gradio_api/mcp/"}

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