fitter

Declarative engine that turns any website or API into structured JSON via config files, usable by AI agents through MCP.

Desktopfree

Fitter is a free, open-source engine that turns any website or API into structured JSON using a declarative JSON/YAML config instead of custom scraping code, with support for HTTP requests, headless browser rendering, JSON paths, CSS selectors, and XPath. Its built-in MCP server lets Claude Code, Claude Desktop, or any MCP client author and run these configs locally, entirely on the user's own machine with no third-party scraping API or billing. It targets developers and AI agent builders who need structured web or API data without maintaining brittle scrapers.

Website

Full match profile

Behind the summary, Matchbox keeps a richer profile of fitter - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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