Agent Purchase Guard — A2A paper access test

Deterministic paper-only purchase preflight. Send one JSON purchase intent as an A2A text part. No payment, wallet, signature, credential or live commerce.

Skills

• Paper purchase preflight
  Submit a JSON object as the entire message text. Required: agent_id, session_id, payment_id, scheme=exact, network=mock or eip155:84532, asset=PAPER_USDC or TEST_USDC, amount_usd, max_amount_usd, pay_to, resource_url, method and operation_id. Include your public HTTPS agent_card_url for separate operator review. price_accepted and accepted_price_usd are non-binding signals. Never send secrets or payment material.
  paper-commercepurchase-safetypreflight

How to call

https://merchant-scout-purchase-guard-a2a.malcolmscott73.workers.dev

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