Add crypto payments
in one prompt
You're building with AI. You need payments. Just tell your agent "add Banksi" — it reads the MCP tools, installs the SDK, and wires up x402 paywalls. USDT & USDC on 5 chains, zero config.
Ethereum
BNB Chain
Arbitrum
Tron
Solana
USDT
USDCCopy this. Paste to your AI.
npm install banksi and read https://banksi.vercel.app/api/docs to add crypto payments to my app.
> Installing banksi SDK...
> Creating paywall middleware for /api/checkout
> Adding BanksiPayButton to checkout.tsx
> Configuring Arbitrum + USDT/USDC
Why Banksi?
The simplest way to add crypto payments to your AI-built app.
AI-Native
MCP server included. Your AI agent can read the SDK docs, generate integration code, and test it — without you writing a line.
One-Line Paywall
createBanksiPaywall({ amount: 0.10 }) — that's the entire integration. Your API returns 402, clients pay on-chain, retry with receipt.
Auto Deposit Addresses
Every payment gets a unique HD wallet address. Funds are automatically swept to your wallet after confirmation — no manual collection needed.
5 Chains, 1 SDK
Ethereum, BSC, Arbitrum, Tron, Solana — all supported out of the box. HD wallets generate unique addresses per payment.
x402 Protocol
HTTP 402 Payment Required, reimagined for crypto. Any endpoint becomes pay-per-use. AI agents handle the whole flow autonomously.
Payment Dashboard
Revenue charts, network/token breakdown, payment history with explorer links — all in one place.
Simple Pricing
No monthly fees. No setup costs. Just a small fee per successful payment.
0.5%
per transaction
Only charged on successful payments. Swept automatically during fund settlement.
How It Works
From prompt to payments in 4 steps.
01
Tell Your AI
npm install banksi and read https://banksi.vercel.app/api/docs to add crypto payments to my app.
02
Agent Installs SDK
Your AI agent installs the SDK, sets up the API key, and wires middleware to your routes.
03
Payment Button & x402
BanksiPayButton for checkout UI, or createBanksiPaywall() for API monetization via x402.
04
Auto Address & Sweep
Each payment gets a unique HD wallet address. Confirmed funds are auto-swept to your wallet.
What Your Users See
A clean, mobile-friendly payment flow. Select network, choose token, pay — done.
Americano
Classic black coffee
$4.50
Select Network
EthereumArbitrumSolanaPay with
USDTUSDC4.50 USDTonArbitrumSend exactly
4.50 USDT
To this address
Tap to copy address
x402 Protocol
x402: Programmable Payments
HTTP 402 Payment Required — reimagined for crypto. Any API can become pay-per-use with a single middleware.
1
402 Payment Required
Protected endpoints return a machine-readable 402 response with payment instructions — chain, token, amount, and deposit address.
HTTP/1.1 402 Payment Required2
Pay On-Chain
Client sends stablecoin to the unique address. No accounts, no API keys — just a blockchain transaction.
Send 0.01 USDT → 0xABC...3
Access Granted
Retry the request with the payment receipt. The server verifies on-chain and returns the content.
X-Payment: <paymentId>MCP Server
Your AI Agent Knows Banksi
The MCP server gives your AI agent everything it needs — SDK docs, code generation, integration testing. Just say "add payments" and it handles the rest.
get_integration_guide
Full setup guide for Next.js / Express / React
generate_paywall_code
Ready-to-paste middleware for your route
get_sdk_reference
Complete SDK API docs for autonomous coding
validate_integration
Test that Banksi is reachable and configured
For API Builders
- Paywall any endpoint with a single middleware function
- x402 protocol returns machine-readable payment instructions
- AI agents can pay your API autonomously via MCP
- Configurable pricing per route — micropayments to subscriptions
For App Builders
- Drop-in BanksiPayButton React component
- Network and token selection UI built in
- Real-time payment polling with confirmation callbacks
- Works with any Banksi instance — self-hosted or cloud
Builders Ship Faster
What vibe coders are saying.
“I told Claude Code to add payments. It installed banksi, wired up x402, done in 3 minutes.”
James Park
Indie hacker
“Adding crypto payments used to be a nightmare. Banksi made it literally one line of code.”
Sophia Chen
Founder, DataPipe AI
“The MCP tools are insane. My Cursor agent generates perfect paywall code every time.”
Marcus Rivera
Full-stack dev
“Managing deposit addresses was the hardest part. Banksi auto-generates and sweeps — problem solved.”
Yuna Kim
CEO, PayFlow
“We needed micropayments for our API. x402 middleware was one line. AI customers pay autonomously now.”
Alex Thompson
CTO, APIHub
“The dashboard shows everything — by chain, by token, explorer links. No more spreadsheet tracking.”
Maria Santos
Ops Lead, CryptoShop
“I was manually collecting funds from 50 addresses. Auto-sweep changed my life.”
David Lee
Indie developer
“Took 5 minutes to add USDT payments to my SaaS. The SDK popup just works.”
Emma Wilson
Founder, DesignKit
“We support 5 chains with one integration. Before Banksi, we needed 5 separate setups.”
Raj Patel
Tech Lead, MultiPay
“The Google login + instant API key flow is so smooth. Signed up and had payments running in 10 minutes.”
Lisa Zhang
Product Manager
Live Demo
See it in action
A crypto-powered cafe built with Banksi. Browse the menu, checkout, and check the merchant dashboard.
Add payments in your next prompt.
Install the SDK. Tell your AI agent to do the rest. USDT & USDC on 5 chains, no smart contracts.