0billingCrypto billing for your app.

Your customers pay from 35 chains in 176 assets. You settle in one stablecoin, in your own wallet — no accounts, no KYC, no custody.

Drop in the checkout

What is 0billing?

Checkout

The drop-in widget — wallet pay on 12 EVM chains and Solana, sticker prices, copy-paste for exchange payers.

Payment links

A shareable URL + QR that collects a payment — no code at all. One-time or reusable, ad-hoc items or a catalog price.

Webhooks

How your app learns that money arrived — signed like Stripe's, exactly once per terminal state.

REST API

Every route. Publishable keys for the browser, your secret key for the server.

Catalog & pricing

Products, prices, terms, discount codes — including comps and "12 months for the price of 10".

Refunds

Full or partial, delivered back in whatever the customer paid with. Custody never moves.

Receipts

Numbered documents with both sides of the conversion and an on-chain reference.

The five-minute version

Sign in and name your business — you get a merchant with a publishable key (pk_…, ships in your frontend) and a secret key (sk_…, server-side, shown once).
Point it at your wallet on the Integrate page — every payment settles there. 0billing never holds funds.
Create your prices in the dashboard, or over the API.
Drop the checkout into your app with your publishable key.
Grant what was bought from the webhook — the one trustworthy signal that money arrived.

Everything the customer touches is public-endpoint only: no secret ever reaches a browser, and nothing a browser can call changes what anything costs.