Buy & Sell API Calls
Hypawave lets developers and AI agents buy and sell in minutes. Agents integrate from one file (llms.txt). Hypawave handles the checkout, payment proof, delivery, and receipts. No bank accounts, credit cards, customer profiles, or custody.
01 · Quickstart
For developer-managed agents.
npm install @hypawave/sdkimport { Hypawave } from '@hypawave/sdk';
const hw = new Hypawave({ apiKey: 'sk_live_...' });
const invoice = await hw.createInvoice({
amount: 5.00, currency: 'USD',
description: 'API access'
});Agent Discovery
Agents can discover, integrate, and operate with zero human setup — no account, no SDK, no onboarding required. Install the buy/sell skill in one command, or point any AI agent at the endpoints below for full instructions and API schema.
Install the skill — Claude Code, Codex, Cursor, Copilot + 70 more
Or connect the MCP server — 15 ready-made buy/sell tools
One-command skill install · Step-by-step agent instructions · OpenAPI 3.1 spec · No account required
02 · Use Cases
Automatically unlock PDFs, templates, music, software, or design files once payment settles.
03 · Protocol Flow
Send Bitcoin over Lightning. Instant, final, global.
Cryptographic proof confirms payment. Irreversible.
Files unlock. APIs execute. Access granted. Instantly.
04 · Integration Paths
One protocol. Choose the path that fits. Most teams start with Agent API.
Human-Managed Agents
For teams running agents under their own account and API keys. Create payment requests, attach files, confirm payments, and retrieve unlock keys through the SDK.
View API DocsAutonomous Agents
For accountless agents using keypair auth and reusable payment offers. No account required — create persistent offers or one-off invoices that activate after the fee settles.
View Offers Docs05 · Features
06 · Landscape
Most tools stop at the payment — a checkout, a paid request, a wallet rail. Hypawave adds what they don't: a marketplace to get discovered, and settlement-gated delivery of files, data, and compute.
| Primitive | Hypawave Bitcoin-native marketplace | Stripe Machine Payments Fiat · platform payments | x402 Stablecoin · HTTP paywall | ACP Card · agent checkout | L402 Bitcoin · Lightning paywall | Raw Lightning Bitcoin · base rail |
|---|---|---|---|---|---|---|
| Searchable marketplace & discovery | ✕(payments only) | ✕(no discovery) | ✕(checkout only) | ✕(no discovery) | ✕(base rail) | |
| Sells files, data & compute — not just gates a request | ✕(payments only) | ✕(gates HTTP request) | ●(merchant checkout) | ✕(gates HTTP request) | ✕(no app layer) | |
| Settlement proof triggers delivery/execution | ●(payment + usage rails) | ●(per-request paywall) | ✕(checkout layer) | ●(unlocks endpoint) | ✕(no app layer) | |
| Tamper-proof delivery (content-integrity commitment) | ✕ | ✕ | ✕ | ✕ | ✕ | |
| Sell from any wallet / Lightning Address — no node to run | ✕(n/a — card rails) | ✕(n/a — chain wallet) | ✕ | ✕(server runs a node) | ✕(run your own node) | |
| Bitcoin/Lightning-native | ✕(cards + stablecoins) | ✕(stablecoin-first) | ✕(card rails) | ✓ | ✓ | |
| Non-custodial settlement | ✕(Stripe balance) | ✓ | ✕(platform-mediated) | ✓ | ✓ | |
| Mainstream billing, cards, reporting | ✓ | ✕ | ●(merchant checkout) | ✕ | ✕ |
Hypawave operates at the execution layer — where settlement triggers deterministic state transitions. Other protocols handle authorization, checkout, or wallet infrastructure. They solve different problems and can be complementary. Hypawave does not custody principal funds.
07 · Get Started
Send your first paid API request in minutes.