Fuel Network & Sway Language MCP Server
About
A Fuel MCP server which provides support for Fuel docs and various coding IDEs such as Cursor.
Explore
- Local semantic search of docs.fuel.network content
- No Docker dependency - runs with just Bun
- Fast file-based vector storage with Vectra
- Enhanced result filtering and formatting
- Hybrid search with keyword fallback
Setting up with Highlight
This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:
- Download and install Highlight from highlightai.com/download
- Navigate to the plugins tab and select "Add Custom Plugin"
-
Configure the plugin with the settings below
Plugin Name
Fuel Network & Sway Language MCP ServerCommand (node, npx, python, etc.)Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
- Enable "Start Automatically" if you want the plugin to start when Highlight launches
From the repository
- Bun: Install from bun.sh
``bash
bun install
| Variable | Default | Description |
|----------|---------|-------------|
| VECTRA_INDEX_PATH | ./vectra_index | Vector database location |EMBEDDING_MODEL
| | Xenova/all-MiniLM-L6-v2 | Hugging Face model |CHUNK_SIZE
| | 2000 | Target tokens per chunk |NUM_RESULTS
| | 5 | Search results count |LOG_LEVEL
| | | Set to debug` for verbose output |
query
(string): Search query
nResults
(number, optional): Number of results (default: 5)
includeScore
(boolean, optional): Include relevance scores
searchFuelDocs
- query (string): Search query
- nResults (number, optional): Number of results (default: 5)
- includeScore (boolean, optional): Include relevance scores
provideStdContext
- Returns Sway standard library paths and types
Claude Desktop / Cursor
Paste into your MCP client config file to install this server.
{
"mcpServers": {
"fuel network & sway language mcp server": {
"fuel-mcp-server": {
"command": "bun",
"args": [
"run",
"src/indexer.ts",
"./docs"
]
}
}
}
}McpServers
{
"fuel-mcp-server": {
"command": "bun",
"args": [
"run",
"src/indexer.ts",
"./docs"
]
}
}This project provides a Model Context Protocol (MCP) server for the Fuel Network and Sway Language ecosystem. It allows IDEs (like Cursor) to search and interact with Fuel documentation directly within the development environment.
The server indexes Fuel and Sway documentation into a local Vectra vector database using open-source embeddings (via Transformers.js) for powerful semantic search capabilities.
Features
- Local semantic search of docs.fuel.network content - No Docker dependency - runs with just Bun - Fast file-based vector storage with Vectra - Enhanced result filtering and formatting - Hybrid search with keyword fallbackQuick Install
```bash
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