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Renvoy gives you a hosted facilitator endpoint so you can add pay-per-request USDC payments to any API — no infrastructure to run, no keys to manage, no gas to fund. Set a price on your endpoint. We handle the on-chain settlement.

What is x402?

Understand the protocol

Getting Started

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Server Integration

Add payments to my API

Client Integration

Pay for an x402 API

Agent Self-Provisioning

Provision an endpoint programmatically

Plans & Pricing

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API Reference

See all endpoints

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How it works

1

Client requests a protected endpoint

2

Server responds 402 Payment Required with price and payment address

3

Client signs a USDC transfer and retries with the X-PAYMENT header

4

Server forwards the payment to Renvoy, which settles it on-chain

5

Server returns the data

The @x402/express middleware and @x402/fetch client handle steps 2-4 automatically.
New here? Start with Getting Started — you’ll have a working payment flow in under 2 minutes.