LeanCrawl
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Architecture in one lineProductsFor agents

LeanCrawl is an API-first web data service built for developers and AI agents. It turns any public web page into clean Markdown, rendered HTML, extracted links, screenshots, PDFs, or structured JSON — and can crawl whole sites or monitor pages for changes.

Architecture in one line

POST https://api.leancrawl.com/v1/{endpoint} with Authorization: Bearer ac-…. Every response uses a single envelope — see Errors.

Products

ProductEndpoint familyShape
Capture/v1/markdown html links map screenshot pdf extractsynchronous, billed per call
Crawl/v1/crawlasync job, billed per page
Monitor/v1/monitorscheduled checks, billed per check
Account/v1/account/*free read-only endpoints

For agents

  • MCP server: https://leancrawl.com/mcp — see MCP.
  • llms.txt: https://leancrawl.com/llms.txt — a curated index of this documentation.
  • SKILL.md: https://leancrawl.com/SKILL.md — self-onboarding doc for agent frameworks.