Add Aptos exact scheme #896
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Adds the exact payment scheme specification for Aptos blockchain: - Uses Aptos fungible asset transfer (0x1::primary_fungible_store::transfer) - Supports sponsored transactions via extra.sponsored field - Facilitators can implement as direct fee payer or gas station service - Follows x402 v2 protocol with CAIP-2 network identifiers (aptos:1, aptos:2) - Includes security notes on fee payer mechanism
- Replace gasStation URL with simple sponsored: true boolean in extra - Clarify facilitator can use direct fee payer or gas station service internally - Add security note about fee payer mechanism - Link to Aptos sponsored transactions documentation - Remove version field from PAYMENT-RESPONSE (consistent with other chains) - Separate sponsored vs non-sponsored flows in appendix
🟡 Heimdall Review Status
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@jtang17 is attempting to deploy a commit to the Coinbase Team on Vercel. A member of the Team first needs to authorize it. |
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This is a continuation of #640 @erikreppel-cb @jillxuu Not sure what happened there, seems when @jtang17 rebased your own commits got lost and the PR was then auto-closed |
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Note that we require commit signing @jtang17, see here for instructions: https://docs.github.com/en/authentication/managing-commit-signature-verification/about-commit-signature-verification |
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Description
Adds the exact payment scheme specification for Aptos blockchain:
Uses Aptos fungible asset transfer (0x1::primary_fungible_store::transfer)
Supports sponsored transactions via extra.sponsored field
Facilitators can implement as direct fee payer or gas station service
Follows x402 v2 protocol with CAIP-2 network identifiers (aptos:1, aptos:2)
Includes security notes on fee payer mechanism
Tests
Checklist