Why this earns a paid call (unlike a coloring book). Clean line art is drawable as SVG, so a code-sandbox client (Claude Desktop) will hand-draw a coloring book itself for free — fair enough. But a richly illustrated, consistent-character painterly storybook is beyond hand-drawn vector art; it needs a real image model. There’s no local sandbox shortcut, so the model call earns its keep on every client. And for sandboxless clients (a browser app like Audric), it’s the only path regardless.This is the creation half of an Audric Store demo: “Make a storybook about a brave little fox and sell it for $4.” The store half — Walrus permanence, the capped edition, and the 92%-to-creator USDC sale — lands with Audric Store.
The prompt
What runs
POST /anthropic/v1/messages— Claude writes the story + a per-page illustration prompt, with a shared character sheet for consistency (~$0.02)POST /fal/fal-ai/flux/dev— one illustration per page (~$0.06 each)POST /pdfshift/v1/convert— bind the pages (HTML→PDF, server-side) into one hosted PDF (~$0.02)
Run it
Claude Desktop (MCP)
SDK
Expected output
Extend it
- Bump Flux Dev to Flux Pro (
/fal/fal-ai/flux-pro, $0.10) for higher-fidelity illustrations - Add an ElevenLabs (
/elevenlabs/v1/text-to-speech/:voiceId) narration track per page for an audio storybook - Scale
pageCountup for a full picture book — each page is one ~$0.06 illustration call - Cap the edition and list it for $4 in USDC (92% to the creator) — that’s the upcoming Audric Store flow, built on this exact creation pipeline
