Rayfin plugin for Grok Build

Name: Rayfin
Author: microsoft

Community Claude Code plugin, installs in GrokPluginDevelopmentNeeds sign-in

Backend-as-a-Service with built-in auth, data, and more

How to install Rayfin in Grok Build

grok plugin install microsoft/rayfin --trust

✓ Install-checked in Grok Buildchecked Oct 18, 2026

Needs your own API key or sign-in to work fully. We check that it installs and loads, not your account.

Review before you trust it. --trust lets this plugin's hooks, MCP servers and scripts run code on your computer. It's a community repo that neither xAI nor GrokStacks has reviewed, so read its code first.

We install this repo directly: Grok Build 1.0.62 can't install it through its own marketplace file. Then start a new Grok session, or press r in /plugins, to load it.

Command format: Grok Build's plugin guide

Needs a sign-in. Its MCP server is hosted by the vendor, and most hosted MCP servers ask you to sign in the first time. In Grok, open /mcps, select the server and press i to sign in.

What we checked: on Oct 18, 2026 it installed with grok 1.0.62 and Grok found 1 skill. That's an install check only: we haven't run it in a live Grok session.

What it contains

Skills (1)

rayfin-getting-started — Use when starting or creating a NEW Rayfin app, or when a Rayfin task comes up and you are not yet inside a Rayfin project. Gets you into a project with the Rayfin CLI, then hands off to the authoritative, version-locked in-project rayfin s

MCP servers (3)

Github — http server
playwright — stdio server
raymcp — stdio server

About this listing

Rayfin is a community plugin on GitHub by microsoft, written as a Claude Code plugin that Grok Build installs. We install-checked it in Grok; we haven't run it in a live session or reviewed its code. When we installed it, Grok found 1 skill, 3 MCP servers. Its license is MIT. We checked commit 0979439a7a08. It's one of 409 listings in the Development category on GrokStacks.

Rayfin FAQ

How do I install Rayfin in Grok Build?

Run grok plugin install microsoft/rayfin --trust. We install-checked this command in Grok Build. We install this repo directly: Grok Build 1.0.62 can't install it through its own marketplace file. Then start a new Grok session, or press r in /plugins, to load it.

Is Rayfin an official Grok Build plugin?

No. Rayfin is a community plugin on GitHub by microsoft, not in xAI's official Grok Build marketplace. We checked that it installs and what Grok loads from it, but haven't run it in a live Grok session or reviewed its code.

What does Rayfin include?

According to what Grok loaded in our install check, Rayfin includes 1 skill, 3 MCP servers: rayfin-getting-started, Github, playwright, raymcp.

Details

Type: Plugin
Category: Development
Source: Community Claude Code plugin, installs in Grok
License: MIT
Author: microsoft
Version: 0.4.2
Source repo: https://github.com/microsoft/rayfin
Checked commit: 0979439a7a08
Checked by GrokStacks: Install-checked in Grok Build on Oct 18, 2026; not run in a live session

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For maintainers: badge and embeds

Maintain Rayfin? Add the badge; it links to this page.

Markdown

[![Listed on GrokStacks](https://grokstacks.com/badge.svg)](https://grokstacks.com/p/rayfin/)

HTML

<a href="https://grokstacks.com/p/rayfin/"><img src="https://grokstacks.com/badge.svg" alt="Listed on GrokStacks" width="164" height="28"></a>

Embed card (static HTML and inline CSS, no JavaScript). Preview:

RayfinCommunity plugin for Grok Build · 1 skill, 3 MCP serversBackend-as-a-Service with built-in auth, data, and moreView on GrokStacks →

<a href="https://grokstacks.com/p/rayfin/" style="display:block;max-width:380px;box-sizing:border-box;padding:14px 16px;border:1px solid #2a2e3c;border-radius:12px;background:#0a0b0f;color:#e8eaf0;font:14px/1.45 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;text-decoration:none"><span style="display:block;font-size:16px;font-weight:700;color:#e8eaf0">Rayfin</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#9aa0b1">Community plugin for Grok Build · 1 skill, 3 MCP servers</span><span style="display:block;margin:0 0 10px;color:#c9cdd8">Backend-as-a-Service with built-in auth, data, and more</span><span style="font-size:12px;font-weight:600;color:#7c9cff">View on GrokStacks →</span></a>

Markdown summary

**[Rayfin on GrokStacks](https://grokstacks.com/p/rayfin/)**: Community plugin for Grok Build with 1 skill, 3 MCP servers. Install: `grok plugin install microsoft/rayfin --trust`

More on badges, embeds and keeping your listing up to date: GrokStacks for plugin authors.

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