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Defined in: server.ts:155 Payment scheme identifiers supported by the simplified CDP route format.
  • "exact" — (default) Transfer a fixed amount, locked at signing time. Supports EVM and Solana networks.
  • "upto" — Usage-based billing: the client authorizes a maximum amount and the server settles the actual amount charged (≤ max) via Permit2. EVM-only (eip155:*).
  • "batch-settlement" — High-throughput stateful payment channels. Clients deposit once and sign off-chain vouchers per request. EVM-only (eip155:*).