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x402 purchase test

Purchase an article (bot path)

Bots discover free teasers, then pay for GET /api/v1/papers/{id}. Use this page with MetaMask on Base to run that same flow as a human and confirm the integration.

Network: eip155:8453 (Base)
Price: $0.005 USDC / article
Pay to: 0xe1946c7A27afc4Afc92690cC5c79b2771F85a0c1
Facilitator: https://facilitator.openx402.ai

Free HTML reading stays free at /articles. This page only tests paid JSON.

How bots find a paid article

  1. Free discovery: GET /api/v1/catalog
  2. Paid URL: GET /api/v1/papers/{id} ($0.005 USDC on Base)
  3. Unpaid → HTTP 402
  4. Sign USDC authorization (MetaMask popup) → 200 JSON

Checklist: MetaMask unlocked · network Base · wallet holds USDC (not only ETH) · amount ≥ $0.005

2. Choose article → Pay with MetaMask

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