I do a fair amount of competitor backlink research, and the workflow always annoyed me: open a dashboard, run a query, export a CSV, eyeball it, copy domains into a doc, switch to email. Lots of tab-hopping for what is fundamentally a data-filtering problem an agent should handle.
So I wrapped the backlink API I'd been using into an hyperlink webgraph — about 4.4 billion edges across 120 million domains, published quarterly as Parquet. That matters for an MCP tool specifically: the data is open, so there's no scraped-proprietary-index liability in handing it to an agent, and the same query is reproducible by anyone.
The HTTP API in front of it ( and npm (npx -y crawlgraph-mcp). Feedback on the composite-tool question especially welcome — it's the part of the design I'm least settled on.
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