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Franklin Agent 3.28.0 — Coinbase Onramp: buy USDC with a card

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@1bcMax 1bcMax released this 10 Jun 09:04
· 5 commits to main since this release
v3.28.0
5a28913

Fund your wallet without already holding crypto. The Wallet tab gains a Buy USDC with card button that opens Coinbase Onramp prefilled for your Base wallet — fiat → USDC lands directly in your self-custody address.

  • Coinbase Onramp (Base USDC). Mints a one-time Coinbase session link per click. Coinbase requires server-minted session tokens (Secure Init); the panel calls a loopback endpoint that fetches the link from the BlockRun gateway. Destination is always your own wallet.
  • Wallet-signature auth, zero fee. The gateway authenticates with an EIP-712 wallet signature (verified locally, no settlement, no charge) and binds the funding address to the signing wallet — a link can only fund the wallet you control. No fee to fund an empty wallet.
  • Shared x402 helper extracted from the phone client, reused by phone + onramp.
  • Base only for now; button hides on Solana.
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