How I Built a Markdown Conversion API for AI Agents in Rust (and deployed it for $0.000003 per request) AI agents are only as good as the context you feed them. The problem? Most documentation pages are wrapped in layers of navigation menus, sidebars, cookie banners, and footer links that waste tokens and confuse models. I built CleanMark to fix that — a single-endpoint API that takes any URL and returns clean, structured Markdown ready for LLM consumption. Here's the full story: why I built it, the technical decisions behind it, and what I learned. The Problem If you've ever built a RAG pipeline or an AI agent that reads documentation, you've hit this wall: # What you want docs = load ( " https://docs.stripe.com/api/charges " ) agent . feed ( docs ) # What you actually get " Skip to main content · Products · Docs · Sign in · Sign up · ☰ Menu · API Reference · Charges · ... · © 2024 Stripe, Inc.…