Show HN: Search for AI-agents and usefulness score

Category: ai-ml

Tags: search-api, ai-agents, content-ranking, freshness-detection

Score: 5.7/10 (Innovation: 7, Technical: 5, Documentation: 3, Utility: 5)

Xtract is a search API for AI agents that returns web results with a usefulness score, price estimate, and supersession flags indicating when a newer page replaces an older one. It's interesting for attempting to quantify content utility and freshness for agentic workflows, though the project is early and documentation is minimal.

Target audience: AI/agent developers, backend engineers building retrieval pipelines

Repository: https://xtract-production-2efc.up.railway.app/

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