Images, PDFs and screenshots from templates, HTML or URLs. JSON layer templates with text that shrinks to fit, {{placeholders}} and per-layer modifications; Open Graph cards from a title alone; PDFs from HTML or any public page; screenshots in a real browser; signed URLs that render on first fetch and cache after; webhooks. Every render returns a hosted URL. One key, JSON in and out, with an MCP server for agents. Operated by APIDirectory.