SlickFast

A deterministic render engine that converts a JSON spec into charts, boards, and web documents with byte-for-byte reproducibility, addressing unverifiable browser-based screenshots for data visuals. It is for developers and designers in business teams who need to generate and publish charts and documents programmatically, including via AI agents. It is delivered as a SaaS and infrastructure API with a local MCP for free use and a hosted MCP/API requiring a key, positioned as a browser-free alternative with a verifiable .json twin and fingerprint hash.

Key features

• Deterministic JSON to image rendering
• Charts, boards and Pages generation
• No headless browser required
• Verifiable .json twin per Page
• SHA256 fingerprint on Page
• 47 chart types
• Single spec tiled board rendering
• Palette and theme restyling
• MCP integration for local and hosted use
• Unlisted hosted Page URLs