Purchase router · pre-launch
Buy anything.
Pay any way.
Say what you want. b.uy finds the best way to get it, takes payment on whatever rail you have, and routes the money to the seller and the thing to you. Humans and AI agents welcome.
Not a store, a bank, or a custodian. b.uy never holds funds. It quotes, routes, and tracks.
Start with crypto
The first thing b.uy routes is digital and instant: fiat to crypto, and crypto to crypto, delivered to your own wallet. Quotes compare real all-in prices across licensed providers and pick the best one for your country, payment method, and asset.
1. Intent
Tell b.uy what you want in plain words or a JSON body. It turns that into comparable offers.
2. Route
b.uy picks the provider with the best all-in price for your rail and country. They do KYC and settlement. We never touch the money.
3. Deliver
The asset lands in your own wallet, or the goods ship to you. You get one receipt either way.
For agents
Agents can find things but very few can finish a purchase safely. b.uy gives them one short domain, one buy endpoint, spending limits set by a human, and a receipt. Payments speak HTTP 402, so a stock x402 client pays without changes.
POST https://b.uy/buy
{ "want": "100 USDC on base", "deliver_to": "0xYourWallet", "max_spend": "105 USD" }
→ 402 Payment Required (pay the quote) or 200 { "order": "ord_…", "receipt": "…" }Discovery at /.well-known/ucp. Status and docs at /api.
Where this goes
- Crypto router. Fiat to crypto and crypto to crypto, into your own wallet. Web, API, MCP.
- Digital goods and services. Anything deliverable online, paid in fiat or crypto.
- Physical goods. Shopify, Amazon, and Stripe merchants, with a human concierge for the long tail.
- Open supply. Sellers list directly and choose their payout rail.