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Build and publish a BaZi chart reading agent

Built solo with coding agents, an agent computes BaZi charts, interprets them, detects language and takes on-chain payments for readings.

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Use case overview

Built solo with coding agents, an agent computes BaZi charts, interprets them, detects language and takes on-chain payments for readings.

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Reported experience

  1. What they did

    The developer used AI coding agents to build the full stack solo. The agent received a deterministic BaZi calendar engine to compute exact charts from birth data using solar terms, stem-branch calendar and 10-year luck cycles, then interpreted results while auto-detecting language for output plus chart image. On-chain USDT payments via x402 settled four service tiers without further human input after deployment.

  2. How it went

    It went live on the OKX AI Marketplace as Agent #4939 and settled over 20 real transactions. The stack runs 24/7.

  3. Worth knowing

    Spec to live marketplace listing took under a week.

Example prompts

Try with Codex
Build me a small web app where users enter [input, e.g. birth date and time] and get a [type of reading, e.g. BaZi chart] computed with [library or rules], followed by an AI-written interpretation in the user's language. Include a simple payment step using [payment method, e.g. Stripe or a crypto wallet] in test mode only. You're done when I can run it locally and complete a test reading end to end. Before connecting any real payment account or deploying, pause and show me what you're about to do.

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