ButterPay Documentation
Non-custodial crypto payment infrastructure for stablecoin settlement. Customers pay any token; merchants receive USDT/USDC. 0.8% fee. Stripe-compatible webhooks.
This documentation covers the public HTTP API and the official @butterpay/core SDK.
What you'll find here
- Overview — what ButterPay is, supported chains, supported tokens, fees
- Getting Started — 10-minute end-to-end integration
- Authentication — Bearer JWT, X-Api-Key, sessionToken
- Webhooks — events, signing, retry policy, security
- API Reference — Invoices, Merchants, Plans & Subscriptions, Webhooks Management
- SDK — @butterpay/core
Status
- Arbitrum mainnet live
- Ethereum / BSC / Polygon coming soon (audit pending)
- API:
https://api.butterpay.io - Dashboard + hosted pages:
https://dashboard.butterpay.io(e.g./pay/<invoiceId>,/subscribe/<planId>)