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OpenBB Widgets JSON MCP

An MCP server that exposes the OpenBB widgets.json specification as structured, callable tools. Instead of parsing long-form documentation, developers (and AI coding assistants like Claude Code) can directly query widget types, inputs, and configuration examples through this server. Each widget type is mapped to its own tool—making it easy to generate, mix, and match valid JSON specs when building new OpenBB apps. The server is built with FastMCP, programmatically generated from the OpenBB developer docs, and hosted on Smithery.ai for discoverability.

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Documentation

OpenBB Documentation MCP Server

A Model Context Protocol (MCP) server that provides OpenBB Workspace documentation to AI assistants through a two-step retrieval workflow.

What it does

This server exposes two tools that work together to retrieve relevant OpenBB documentation:

1. `identify_openbb_docs_sections`

Takes a user query
Fetches the complete OpenBB documentation table of contents
Provides it to the LLM with instructions to identify up to 3 relevant section titles
Returns the raw TOC for intelligent analysis

2. `fetch_openbb_content`

Takes the section titles identified in step 1 + the original user query
Fetches the full OpenBB documentation
Extracts only the relevant sections
Returns the content with OpenBB Copilot-compatible citation format instructions

Workflow

LLM calls identify_openbb_docs_sections with user's question
LLM analyzes the TOC and identifies relevant sections (up to 3)
LLM calls fetch_openbb_content with those section titles
LLM uses the extracted content to answer the user's question with proper citations

How to run

Start the server locally:

python server.py

The server will start on port 8000 by default. You can change it with:

PORT=8014 python server.py

The MCP endpoint will be available at http://localhost:8000/mcp

Configuration

The server is pre-configured with CORS for:

https://pro.openbb.co
https://pro.openbb.dev
http://localhost:1420
http://localhost:8000

Dependencies

Install requirements:

pip install -r requirements.txt

Requires Python 3.10+