stygian-mcp 0.8.0

Unified MCP (Model Context Protocol) server aggregating stygian-graph, stygian-browser, and stygian-proxy.
Documentation

stygian-mcp

Unified MCP (Model Context Protocol) server aggregating stygian-graph, stygian-browser, and stygian-proxy into a single JSON-RPC 2.0 process over stdin/stdout.

An LLM agent connecting to this server can scrape URLs, run pipeline DAGs, automate browsers, manage proxy pools, and combine all three capabilities — without needing to connect to three separate processes.

Usage

Add to Cargo.toml:

[dependencies]
stygian-mcp = { version = "0.6.0" }

Or run the bundled binary directly:

cargo install stygian-mcp
stygian-mcp

MCP Tools

All tools from the three underlying crates are available under their respective prefixes:

Prefix Crate Example tools
graph_* stygian-graph graph_scrape, graph_scrape_rest, graph_pipeline_run
browser_* stygian-browser browser_acquire, browser_navigate, browser_screenshot
proxy_* stygian-proxy proxy_add, proxy_acquire, proxy_pool_stats

The aggregator also adds two cross-crate tools:

Tool Description
scrape_proxied HTTP scrape routed through an acquired proxy
browser_proxied Browser session with a proxy from the pool

Architecture

  LLM / IDE
     │  JSON-RPC 2.0 (stdin/stdout)
     ▼
┌─────────────────────────────┐
│        McpAggregator        │
│  tools/list ── merge        │
│  tools/call ── route ──┐   │
└──────────────────────┬─┘   │
     ┌─────────────────┘     │
     ▼          ▼            ▼
GraphHandler  BrowserHandler  ProxyHandler

License

Licensed under either the MIT License or the Commercial License at your option.