Every way to get paid. Humans pay. Agents pay
Humans pay at a hosted checkout, agents pay over x402. It all lands in your wallet, at 0% fee.
Sign up free
for agents
npx @xenarch/agent-mcp
live
/checkout · subscriptions · invoices
/USDC on Base
Building blocks / compose any payment flow
Six primitives. Each a hosted URL for humans and agents.
subscription
Recurring billing, monthly to yearly. Authorise once, payments fire on schedule.
SaaS · newsletters · API tiers
checkout
A one-off product at a fixed price. The customer pays, you ship the deliverable.
downloads · courses · goods
invoice
Billed to a named buyer: address, line items, and a due date. Net terms supported.
B2B · consulting · contractor
donation
Open amount, the payer picks how much, with optional tiers. Named or anonymous.
tips · sponsorships · nonprofits
ticket
Scarce and time-bound: capped supply and an expiry. Each sale unique, verifiable.
events · access passes · early bird
link
A generic payment at its simplest: an amount, a wallet, a URL. Anyone pays, done.
tip jars · bounties · ad-hoc invoices
In action / built for your use case
Pick a kind, share the link, get paid. 0% fee.
for shops & makers
Sell physical goods
Show the product, collect a delivery address, take payment in USDC. One gasless checkout for physical or digital goods, 0% fee.
for freelancers & B2B
Invoice clients, paid in USDC
Numbered, itemized, Net terms, your branding. Send it, the client pays in USDC, you keep every cent.
for creators & nonprofits
Tips, donations, fundraisers
An open amount with suggested tiers and an optional goal with a live progress bar. Named or anonymous, funds land in your wallet.
Integrate / four surfaces, one wallet
Pick the surface that fits your stack. One wallet.
Hosted
Share a URL and we host the checkout. Pick a kind, set a price, share it, and any wallet pays you in USDC.
pay.xenarch.com/l/abc123
For: donations · tip jars · one-off checkout
Embedded
Drop one script tag and add
data-xenarch-link to any button. A click opens the hosted checkout and returns a tx hash.<script src="https://cdn.xenarch.dev/pay/v1.js" defer></script>
For: e-commerce · paywalls · SaaS signup
API & SDK
Create subscriptions, invoices, and tickets programmatically. Webhooks fire on every state change: paid, failed, refunded.
xenarch.payments.create({ kind: 'subscription', … })
For: B2B billing · automated invoicing · usage-based pricing
Agent-callable
Every link is also an x402 endpoint. Agents hit the same URL via the same MCP and SDK as the rest of Xenarch.
xenarch_pay("https://pay.xenarch.com/l/abc123")
For: AI agent commerce · agent-to-agent payments
Reference / answers
Questions
what is this
A hosted payment surface for sellers on USDC. Six building blocks (subscription, checkout, invoice, donation, ticket, generic link), each a hosted URL anyone can pay. Combine them to assemble any flow.
who pays
Humans and agents. A Payment Link is also an x402 endpoint: agents pay it programmatically via the agent SDK; humans pay through the hosted checkout. Same link, same wallet receives.
is it live
Yes. Sign up and start building today. Checkout, subscriptions, and invoices are live, with more kinds shipping continuously.
fee
0% Xenarch fee. Same architecture as the rest of the rail. No Xenarch contract in the money flow. Wallet to wallet, on-chain.
how do I start
Sign up, build a link in the dashboard, and share it. A wallet is the whole signup. No KYC, no contract, no fee.
network
USDC on Base mainnet, chain 8453. Direct wallet-to-wallet settlement, verifiable on Basescan.
Start / free · non-custodial · 0%
Start selling in sixty seconds
A wallet is the whole signup. Set it up, share it, get paid in USDC. Humans at the checkout, agents over x402.
Building an agent?
npx @xenarch/agent-mcp · this domain is fully agent-readable at /llms.txt