Roadmap P2: agent checkout API + Agentic Commerce Protocol + x402

[solomon2773]

Phase 2 of the AI-era roadmap.

Let AI agents be customers: machine-readable catalog, idempotent agent checkout with delegated spend-capped tokens, an ACP-shaped surface via Stripe, and an x402 stablecoin machine-payments gateway paired with metered billing.

[doteyeso-ops]

Relevant to the x402 + idempotent agent-checkout lane: Vibes-Coded is a live Solana USDC x402 seller with prepaid keys (collapses per-call wallet sign) and a public conversion funnel.

• Discovery: https://vibes-coded.com/.well-known/x402.json
• Agent docs: https://vibes-coded.com/llms.txt
• Prepaid fund: https://vibes-coded.com/api/v1/outcomes/balance/fund
• Funnel (public): https://vibes-coded.com/api/v1/outcomes/funnel
• OpenAPI: https://vibes-coded.com/openapi.json

PayTo treasury is Solana mainnet USDC via OpenX402. If helpful as a reference merchant for ACP/x402 gateway smoke tests, happy to share a minimal buyer flow (402 → settle / prepaid header).