Guided path over the public live API
This page is a reviewer-facing walkthrough for the same public Railway host as Live. It uses MARKET_DATA_MODE=live — outcomes depend on real upstream market state, funding, and serviceability checks. You may see 503 PRE_PAYMENT_SERVICEABILITY_FAILED when the live book is not serviceable; that is fail-closed behavior, not a scripted fixture.
Public live API base
https://growthbase-production.up.railway.app
Quick links
Step 1. Confirm live readiness
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Recommended video sequence
Show the product story in this order: Policy, Identity, live readiness, live /offers, live purchase spec, Latest Artifact, Verify, then Evidence for the canonical payment-proof bundle and limitation note.
Step 2. Show the latest live artifact
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External proof (CLI)
For submission-style evidence against this host: PROOF_TARGET=live, API_BASE_URL=https://growthbase-production.up.railway.app, funded Base USDC, pnpm.cmd proof:external. Full commands: docs/runbook.md.
Operators can also run PROOF_TARGET=deterministic-demo against an explicit MARKET_DATA_MODE=fixture host (local or tunnel) for offline-repeatable bundles — that path is documented in the runbook and does not imply a second public Railway service.
Canonical public payment-proof example for the demo video: tx hash 0x436ecfefe0a4fea553e85350ca2d44ee5ee9d2c193d6b4d1264fd66bf66efe6e with its historical funded Railway bundle documented on /evidence.
Site entrypoint: https://growthbase-web.vercel.app