Sponge is financial infrastructure for agents and businesses transacting with them. Its current product spans agent wallets, payment gateways, REST APIs, wallet skills, transfer and swap flows, x402 paid API access, and owner-managed spending controls.
Features
- Agent wallet accounts for holding and moving funds across supported chains
- Business gateway for onboarding agents and accepting payments without a human checkout flow
- REST API for balances, transfers, swaps, bridges, funding requests, and transaction history
- x402 payment creation for paid API access and machine-native payment flows
- Spending controls, allowlists, and owner approval flows for safer delegated spending
So agents can…
- Pay for services or data within pre-approved guardrails instead of asking a human to click checkout
- Transfer funds to vendors, creators, or other agents while keeping an audit trail
- Combine planning and payment in one loop, for example buying data before executing a trade or workflow
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