Kobaru
Managed x402 infrastructure. Handles facilitator duties so developers don't have to run their own payment verification.
Using USDC on Kobaru
Kobaru provides managed infrastructure for the x402 protocol. In the x402 flow, a facilitator is needed to verify that USDC payments have been confirmed on-chain before content is delivered. Running your own facilitator requires blockchain node access, monitoring, and reliability engineering. Kobaru handles all of this as a service. Developers point their x402 server at Kobaru's facilitator endpoint and focus on their application logic. Kobaru supports Base and Solana and offers a free tier for getting started.
Supported networks
Key features
- Managed facilitator service
- No blockchain node required
- Free tier available
- Base and Solana support
- Simple API integration
Other x402
Coinbase x402 SDK
The reference implementation for x402. TypeScript SDK for building clients and servers that handle per-request USDC payments.
SDKthirdweb x402
x402 middleware from thirdweb that integrates with their smart contract and wallet tooling.
SDKx402 Python SDK
Python library for building x402 clients and servers. Ideal for AI agents and data services.
Ready to get started with USDC?
Check out our guides or explore more of the USDC ecosystem.