March 2026 cohort / Finance and payments

x402r Refund Protocol
OnlineProvides escrow-backed refunds and dispute resolution for developers using the x402 payment protocol.
- Status
- Onlinesince Nov 5, 2026
- First launched
- Mar 12, 2026
- Category
- Finance and payments
- Type
- Developer tool
Alternatives to x402r Refund Protocol
All finance and payments →Similar products, all online at their last check.
Lets developers register AI agents, set usage-based payment plans, and accept fiat or crypto payments.
- PayClawpayclaw.meOnline
Provides agent-payment capabilities through a protocol whose contracts run on Base mainnet.