Arc MCP Builder Assistant

Local-only starter kit · no wallet connection

Reusable agent commerce cards.

Compose an agent card, payment request, receipt preview, and event log without invoking the separate guarded Arc Testnet wallet-send lab. The output is a reviewable local JSON contract.

Draft review object

Safety boundary

  • Human approval is required before every wallet action.
  • No private keys, no custody, no wallet permissions, no backend calls.
  • No transaction broadcast and no mainnet path.
  • Arc Testnet facts stay explicit: chain ID 5042002, USDC, ERC-20 USDC 6 decimals.

Scenario builder

Agent card

Payment request

Receipt card

Event log

    Combined review object

    
              

    This JSON is the handoff: any separately reviewed wallet integration should consume the frozen fields instead of asking an AI model to regenerate money-critical values.