FAQ

Got questions? We've got answers. No BS, just straight talk about autonomous payments and the x402 protocol.

🌟 General Questions

What is Yuki402?

Yuki402 is your autonomous AI payment agent that handles blockchain payments faster than you can say "gas fees." Built on the x402 protocol, she intercepts HTTP 402 Payment Required responses and executes crypto payments in milliseconds—no clicking, no manual approvals, just pure automation.

Think of it as: Autopay, but for the entire internet. Set your limits once, then Yuki handles everything while you focus on building.

Is Yuki402 free to use?

Hell yeah. 0% platform fees. We're not here to extract rent—we're here to enable the machine economy.

You only pay:

  • Service fees (set by each API provider)

  • Blockchain gas fees (~$0.01 on Solana, varies on other chains)

  • That's it. No subscriptions. No hidden costs. No "processing fees."

The alpha: Hold $YUKI tokens for lifetime fee-free access. Don't hold? Pay a tiny fee that goes straight into automatic buybacks. More payments = more buybacks = more value accruing to holders.

What makes Yuki402 different from traditional payment processors?

Traditional payment processors are slow, expensive, and require trusting middlemen. Yuki402 is the opposite:

Traditional Payments:

  • 2-3 day settlement times

  • 2-3% transaction fees

  • Requires accounts, KYC, OAuth

  • Chargebacks and fraud risk

  • Geographic restrictions

  • Platform takes 20-30% cut

Yuki402:

  • 2-second settlement (on Solana)

  • Zero platform fees

  • No accounts or registration

  • Trustless blockchain verification

  • Works globally, borderless

  • Protocol is open source and free

Do I need cryptocurrency?

Yes—Yuki402 settles payments on-chain, so you'll need:

A Web3 wallet (MetaMask, Phantom, Coinbase Wallet) ✅ Some crypto for service payments + gas fees ✅ Compatible chains (Solana, Ethereum, Polygon, Base)

New to crypto? Start on Solana devnet (free test tokens) before using real money. Get devnet SOL herearrow-up-right.

What is the x402 protocol?

x402 is the open protocol that makes autonomous payments possible. Built around the HTTP 402 Payment Required status code (yes, it's been in the HTTP spec since 1997—we're just the first to use it properly).

How it works:

  1. Your app requests data from an x402 API

  2. API responds with HTTP 402 + payment instructions

  3. Yuki intercepts, processes payment, and retries

  4. API verifies payment proof on-chain, delivers data

Result: Instant, trustless, programmatic payments. No accounts, no middlemen, no friction.

Learn more:

🚀 Platform Questions

How do I access Yuki402?

Web app (easiest):

  1. Click "Launch App"

  2. Connect your wallet

  3. Start making requests

Local development:

See Installation Guide for detailed local setup.

What browsers are supported?

Any modern browser with Web3 wallet support:

Chrome (recommended) - Version 90+ ✅ Firefox - Version 88+ ✅ Brave - Built-in wallet, no extension needed ✅ Safari - Version 14+ (with MetaMask extension) ✅ Edge - Version 90+

Pro tip: Brave has the best native Web3 integration. No extension installation required.

Does it work on mobile?

Absolutely. Yuki402 is fully responsive and works on mobile wallets:

📱 iOS:

  • MetaMask Mobile browser

  • Phantom Mobile

  • Coinbase Wallet app

  • WalletConnect support

📱 Android:

  • MetaMask Mobile

  • Phantom Mobile

  • Trust Wallet

  • Coinbase Wallet

Caveat: Mobile UX varies by wallet provider. Desktop experience is currently smoother.

Do I need to create an account?

No. Yuki402 embraces crypto-native identity:

✅ Your wallet address is your identity ✅ No registration, email, or OAuth ✅ No personal data collected ✅ Privacy-first architecture ✅ Anonymous usage by default

Just connect and go. It's that simple.

💸 Using Yuki402

How do autonomous payments work?

Magic, basically. But here's the technical flow:

  1. You ask: "Get me weather data for London"

  2. Yuki reaches out to the WeatherAPI service

  3. HTTP 402 received - Payment Required response with instructions

  4. Yuki processes - Checks limits, verifies balance

  5. Transaction signed - Wallet signs payment automatically

  6. Broadcast to chain - Transaction submitted on-chain

  7. 2 seconds later - Payment confirmed

  8. Retry with proof - Yuki retries request with payment receipt

  9. Data delivered - API verifies proof, sends you the data

Total time: 3-5 seconds from request to data. Faster than manual approval.

What are spending limits?

Your safety net. Daily, weekly, and monthly caps on how much Yuki can spend autonomously.

Example setup:

How they work:

  • Limits are enforced by smart contracts on-chain

  • Yuki checks limits before every payment

  • If a payment would exceed your limit, it's blocked

  • Limits reset automatically (daily/weekly/monthly)

  • You can adjust anytime via wallet transaction

Golden rule: Start conservative, scale up gradually as you get comfortable.

How do I set spending limits?

Spending limits are configured through smart contracts:

During setup:

  1. Deploy or configure the SpendingLimits contract

  2. Set your daily/weekly/monthly caps in SOL or ETH

  3. Approve Yuki to check these limits

  4. Limits are now enforced automatically

To update limits:

  1. Call the smart contract with new values

  2. Sign the transaction with your wallet

  3. New limits take effect immediately

See Configuration Guide for detailed instructions.

Can I cancel a payment after it's submitted?

No. Blockchain transactions are irreversible once submitted. This is fundamental to how blockchains work.

But you're protected:

  • Yuki checks limits BEFORE submitting

  • Shows cost estimates before processing

  • Spending limits prevent runaway costs

  • Failed transactions refund automatically (gas fee is still paid)

Pro tip: Set conservative limits so you're never in a position where you need to cancel.

What services can I access with Yuki402?

Any x402-compatible service. The ecosystem is growing daily.

Current services include:

📊 Data APIs

  • Weather data (OpenWeatherMap, WeatherAPI)

  • Financial markets (CoinGecko, crypto prices)

  • Sports scores and stats

  • News feeds and content

🤖 AI Services

  • Image generation (Stable Diffusion, DALL-E proxies)

  • Text analysis and NLP

  • Model inference APIs

  • AI model training

💾 Storage Services

  • IPFS pinning (Pinata, Web3.Storage)

  • Decentralized file storage

  • CDN and file hosting

⛓️ Web3 Services

  • Smart contract deployment (thirdweb)

  • Blockchain data APIs

  • DeFi protocol access

  • NFT minting services

Ask Yuki: "What services are available?" for real-time registry search.

Does Yuki402 save my chat history?

Nope. We're completely stateless for your privacy:

✅ Conversations are NOT stored on our servers ✅ Refresh the page = fresh start ✅ No conversation tracking or logging ✅ No analytics or telemetry

❌ You can't retrieve old conversations after refresh

What IS stored:

  • Transaction history (public on blockchain—nature of the beast)

  • Smart contract state (spending limits, on-chain)

Privacy first. We don't want your data. We don't need your data.

How much do services cost?

Costs vary wildly depending on the service:

Typical ranges:

Cheap ($0.01 - $0.10):

  • Weather API queries

  • Simple data lookups

  • Basic AI inference

Moderate ($0.10 - $1.00):

  • Image generation

  • Complex AI models

  • Premium data APIs

Expensive ($1.00+):

  • High-resolution image generation

  • Smart contract deployment

  • Large dataset access

Plus gas fees:

  • Solana: ~$0.01

  • Polygon: ~$0.05

  • Ethereum: $1-$20 (avoid unless necessary)

Pro tip: Ask Yuki for pricing before requesting. "How much does [service] cost?"

🔧 Technical Questions

What AI model powers Yuki402?

Google Gemini 2.0 Flash - the perfect balance of speed, cost, and intelligence.

Why Gemini 2.0 Flash:

  • ⚡ Fastest response times (<1s)

  • 💰 Most cost-effective

  • 🧠 Smart enough for payment processing

  • 🔍 Built-in web search capabilities

  • 📊 Massive context window

Configuration:

Can I use a different model? Yes—customize in .env.local with OpenRouter. See Configuration Guide.

What blockchains are supported?

Yuki402 is chain-agnostic. We support any blockchain that speaks x402.

Currently supported:

Solana - Primary chain

  • 2-second finality

  • $0.01 gas fees

  • Best for high-volume payments

⛓️ Ethereum - Main network

  • 12-second finality

  • $1-$20 gas fees (varies)

  • Most service adoption

🟣 Polygon - Ethereum L2

  • 2-3 second finality

  • $0.05 gas fees

  • Good balance of speed/cost

🔵 Base - Coinbase L2

  • 2-second finality

  • $0.05 gas fees

  • Growing ecosystem

More chains coming: Arbitrum, Optimism, Avalanche, BSC

Where do payments go?

Directly to service providers. No middlemen, no escrow, no custody.

Flow:

  1. Your wallet → Service provider wallet

  2. Smart contract verifies payment

  3. Service provider checks on-chain proof

  4. Data delivered

100% peer-to-peer. Yuki facilitates, but never touches your funds.

Transparency: All transactions are publicly verifiable on block explorers.

How fast are payments?

Depends on the blockchain:

Chain
Finality
Total Request Time

Solana

2 seconds

3-4 seconds

Polygon

2-3 seconds

4-5 seconds

Base

2 seconds

3-4 seconds

Ethereum

12-15 seconds

15-20 seconds

Total time includes:

  • Transaction submission

  • Blockchain confirmation

  • API verification

  • Data delivery

Bottom line: 3-5 seconds on fast chains. Way faster than any traditional payment processor (2-3 days).

Is my data private?

Privacy model:

Conversations - Not stored anywhere ✅ Requests - Not tracked on our servers ✅ Wallet - Non-custodial, you control keys ✅ Personal data - We don't collect any

⚠️ Transactions - Public on blockchain (nature of blockchain) ⚠️ Service data - Privacy depends on service provider

We're privacy-first, but blockchain is inherently transparent. If you need true privacy, consider privacy-preserving chains or mixers (use responsibly).

Are transactions reversible?

No. Blockchain transactions are final and irreversible.

Why?

  • Fundamental property of blockchain consensus

  • Prevents double-spending attacks

  • Enables trustless transactions

What this means for you:

  • Double-check before confirming

  • Set conservative spending limits

  • Start with small amounts to test

  • No "undo" button exists

Disputes: Contact service provider directly. Future versions will include on-chain arbitration.

🛡️ Security Questions

Is Yuki402 secure?

Yes, with defense in depth:

🔐 Non-Custodial

  • You hold private keys

  • Yuki never touches your funds

  • Revoke access anytime

🔒 Spending Limits

  • Smart contract enforcement

  • On-chain caps

  • Automatic limit checks

🌐 HTTPS Encryption

  • All web traffic encrypted

  • Secure WebSocket connections

📜 Open Source

  • Smart contracts auditable

  • Community review

  • No black boxes

Rate Limiting

  • 50-second cooldown between requests

  • Prevents spam and abuse

🔍 Service Verification

  • x402 registry checks

  • Prioritizes verified services

Bottom line: Secure by design. But crypto is risky—only use funds you can afford to lose.

Can Yuki402 steal my funds?

No. Architecturally impossible.

Why:

  • ✅ Yuki never holds your private keys

  • ✅ All transactions signed by YOUR wallet

  • ✅ Smart contracts enforce spending limits

  • ✅ You can revoke access instantly

  • ✅ All transactions visible on-chain

What Yuki CAN do:

  • Request your wallet to sign transactions (within limits)

  • Process payments you've authorized

What Yuki CAN'T do:

  • Sign transactions without your wallet

  • Exceed your spending limits

  • Access funds after you disconnect

  • Hide transactions from you

Trust, but verify: Check our open-source contracts and code.

How do I protect myself?

Security best practices:

  1. Set Conservative Limits

    • Start with 0.01 SOL/day (~$2.50)

    • Scale up gradually as you get comfortable

    • Never set limits you can't afford to lose

  2. Use Dedicated Wallet

    • Create separate wallet for Yuki

    • Don't use your main holdings wallet

    • Keep only what you need for payments

  3. Verify Services

    • Only use verified x402 services

    • Check service reputation

    • Start with small test requests

  4. Monitor Spending

    • Check transaction history regularly

    • Use block explorers to verify

    • Set up wallet notifications

  5. Keep Keys Safe

    • NEVER share your seed phrase

    • Use hardware wallet for large amounts

    • Enable wallet password/biometrics

  6. Stay Updated

What if a service doesn't deliver?

If you paid but didn't receive the service:

  1. Save proof of payment

    • Transaction hash from block explorer

    • Screenshot of request/response

    • Timestamp of payment

  2. Check transaction status

    • Verify payment confirmed on-chain

    • Check payment went to correct address

    • Ensure sufficient gas was paid

  3. Contact service provider

    • Provide transaction hash as proof

    • Request refund or service delivery

    • Give them 24-48 hours to respond

  4. Report to Yuki402

    • Include all details and proof

    • We'll investigate and potentially delist bad actors

  5. Future: On-chain disputes

    • Smart contract arbitration (coming soon)

    • Automated refund mechanisms

    • Reputation system for services

Pro tip: Test new services with small amounts first.

How do I report security issues?

Responsible disclosure process:

📧 Email: [email protected]

Please include:

  • Detailed description of vulnerability

  • Steps to reproduce

  • Potential impact assessment

  • Your contact info (optional, for bounty)

We'll respond within:

  • 48 hours: Acknowledgment

  • 7 days: Initial assessment

  • 30 days: Fix deployed (critical issues)

Bug bounties available for critical vulnerabilities. Rewards based on severity.

DON'T:

  • Disclose publicly before we patch

  • Exploit for personal gain

  • Test on production/mainnet

We appreciate responsible researchers. You'll be credited (if you want) when we patch.

💳 Payment Questions

What happens if payment fails?

Failed transactions revert on-chain:

Your funds are NOT deducted (except gas fee—that's paid either way) ✅ Yuki shows failure reason in chat ✅ You can retry with adjusted parameters

Common failure reasons:

🚫 Insufficient balance - Need more crypto 🚫 Gas too low - Network congestion, increase gas 🚫 Limit exceeded - Would exceed spending cap 🚫 Service unavailable - API is offline 🚫 Network congestion - Blockchain overloaded

What to do:

  1. Read the error message (they're usually clear)

  2. Fix the issue (add funds, wait, increase gas)

  3. Retry the request

  4. Contact support if stuck

Why did my transaction fail?

Top reasons for transaction failures:

1. Insufficient Balance

  • Not enough crypto for service + gas

  • Solution: Add funds to wallet, try again

2. Gas Too Low

  • Network congestion requires higher gas

  • Solution: Increase gas price/limit in wallet

3. Spending Limit Exceeded

  • Transaction would break daily/weekly/monthly cap

  • Solution: Wait for limit to reset or increase limit

4. Service Unavailable

  • x402 service is offline or rejecting requests

  • Solution: Try different service or wait

5. Network Congestion

  • Blockchain is overloaded, transactions timing out

  • Solution: Wait for congestion to clear, increase gas

6. Smart Contract Revert

  • Payment logic rejected transaction

  • Solution: Check error message, contact support

Pro tip: Check transaction on block explorer for detailed error messages.

How do I check transaction status?

Every payment includes a transaction hash (TxHash).

Use it to:

  1. View on block explorer (Yuki provides clickable links)

  2. Check confirmation status

  3. See exact costs and gas used

  4. Verify payment recipient

  5. Get proof of payment for disputes

Block explorers:

What to look for:

  • ✅ "Success" status

  • ✅ Confirmed block number

  • ✅ Correct recipient address

  • ✅ Expected amount

Can I get refunds?

Blockchain transactions are irreversible, but refunds are possible:

How refunds work:

  1. Service provider issues NEW transaction

  2. Refund goes back to your wallet

  3. You receive crypto back (minus original gas)

When refunds happen:

  • Service failed to deliver

  • Service error/downtime

  • Duplicate payment

  • Service offers refund policy

Process:

  1. Contact service provider with transaction hash

  2. Request refund with reason

  3. Wait for provider to process

  4. Check wallet for refund transaction

Some services offer automatic refunds for failures. Check service terms.

Why are gas fees so high?

Gas fees fluctuate based on network demand:

Factors:

📈 Network Congestion

  • More users = higher fees

  • Peak times (US market hours) = expensive

⛓️ Chain Selection

  • Ethereum: $1-$20 (ouch)

  • Polygon: $0.05-$0.20

  • Solana: $0.01 (consistent)

🔥 Transaction Complexity

  • Simple transfers = cheap

  • Complex smart contract calls = expensive

🐂 Market Conditions

  • Bull markets = more activity = higher fees

Solutions:

✅ Use cheaper chains (Solana, Polygon) ✅ Transact during off-peak hours ✅ Wait for congestion to clear ✅ Use gas trackers to time transactions

Pro tip: Yuki automatically routes to the cheapest chain when possible.

🔧 Troubleshooting

My wallet won't connect

Try these solutions in order:

  1. Check wallet is installed

    • Browser extension installed and enabled

    • Wallet app is updated to latest version

  2. Unlock your wallet

    • Enter password/PIN

    • Wallet must be unlocked to connect

  3. Refresh the page

    • Hard refresh (Ctrl+Shift+R / Cmd+Shift+R)

    • Clear browser cache if needed

  4. Try different browser

    • Chrome works best for most wallets

    • Brave has native Web3 support

  5. Check network

    • Wallet on supported network?

    • Switch to Ethereum Mainnet or Solana

  6. Reinstall wallet extension

    • Last resort: uninstall and reinstall

    • Keep seed phrase safe before uninstalling!

Still stuck? Email [email protected] with browser/wallet details.

Payment is stuck pending

If your payment is taking forever:

  1. Check block explorer

    • Use transaction hash to view status

    • Look for "Pending", "Success", or "Failed"

  2. Wait 5-10 minutes

    • Network congestion can delay confirmation

    • Solana: Usually <2 minutes

    • Ethereum: Can be 15-30 minutes during congestion

  3. Check for failure

    • If reverted/failed, you weren't charged (except gas)

    • Error message explains why

  4. Contact support if >10 minutes

Transaction hash is your proof of payment - save it!

Insufficient balance error

This means you don't have enough crypto for the payment.

You need:

  • Service fee (e.g., 0.01 SOL)

  • Gas fee (e.g., 0.00001 SOL)

  • Small buffer (5-10% extra)

Solutions:

  1. Add more crypto to wallet

    • Buy on exchange (Coinbase, Kraken, etc.)

    • Transfer from another wallet

    • Use on-ramp service (Moonpay, etc.)

  2. Try cheaper service

    • Ask Yuki for alternatives

    • Some services have free tiers

  3. Switch to cheaper chain

    • Solana gas is way cheaper than Ethereum

    • Request Yuki use specific chain

Service unavailable

If Yuki says a service is offline:

Reasons:

  • Service is temporarily down for maintenance

  • High traffic, service rate limiting

  • Service removed from x402 registry

  • Network issues between Yuki and service

What to do:

  1. Wait a few minutes - Temporary outages are common

  2. Try again - Service may be back online

  3. Ask for alternatives - "What other weather APIs are available?"

  4. Check x402 registry - x402.org/servicesarrow-up-right

  5. Report if persistent - Email support with service name

Some services have uptime SLAs - check service terms.

Wrong amount charged

If you were charged an unexpected amount:

  1. Check block explorer

    • Verify actual amount sent

    • Look at transaction details

  2. Account for gas fees

    • Gas is SEPARATE from service fee

    • Shows as two line items

  3. Check service pricing

    • Services can have dynamic pricing

    • Prices may vary by request complexity

  4. Verify with service provider

    • Contact them with transaction hash

    • Confirm their pricing structure

  5. Report if genuinely wrong

    • Include transaction hash and expected vs actual

    • We'll investigate and escalate to provider

🔮 Future Development

What features are coming?

Roadmap for 2026:

Q1 2026:

  • 🔄 Multi-signature support for orgs

  • 📅 Scheduled recurring payments

  • 🔀 Batch processing (multiple payments in one tx)

  • 🤝 Dispute resolution system

Q2 2026:

  • 📱 Native iOS and Android apps

  • 🔍 Enhanced service discovery marketplace

  • ⚡ Auto-routing to cheapest chain

  • 💎 $YUKI staking for premium features

Q3 2026:

  • 🏢 Enterprise API for developers

  • 🔌 JavaScript, Python, Go SDKs

  • 📡 WebSocket support for real-time

  • 🎨 White-label solutions

Q4 2026:

  • 🔐 Privacy-preserving payments

  • 🤖 AI-powered service recommendations

  • 📊 Advanced analytics dashboard

  • 🌐 Multi-language support

Want early access? Email [email protected]

Can I integrate Yuki402 into my app?

Developer API coming Q2 2026:

Features:

  • RESTful API for autonomous payments

  • WebSocket real-time updates

  • Full SDK support (JS, Python, Go)

  • White-label solutions

  • Custom branding options

  • Enterprise SLA support

Use cases:

  • Add autonomous payments to your dApp

  • Build AI agents that pay for services

  • Create payment-enabled chatbots

  • Integrate with existing tools

Interested? Join the waitlist: [email protected]

How can I add my service to x402?

Make your API x402-compatible in 4 steps:

1. Implement HTTP 402 flow

2. Verify payments

  • Check transaction on-chain

  • Verify amount and recipient

  • Confirm transaction is recent (<5 min)

3. Register in x402

  • Submit to x402 registry

  • Provide service details and pricing

  • Get verified status

4. Set pricing

  • Define per-request costs

  • Choose accepted chains

  • Document your API

Full guide: x402.gitbook.io/implementationarrow-up-right

💬 Getting Help

Where can I get support?

Official channels:

📧 Email: [email protected]

  • Technical support

  • Bug reports

  • General questions

  • Response time: <24 hours

🐦 X/Twitter: @yuki402xyzarrow-up-right

  • Updates and announcements

  • Quick questions

  • Community discussion

📖 Documentation: Right here!

  • Comprehensive guides

  • API reference

  • Troubleshooting

🐛 GitHub: github.com/yuki402-xyz/yuki402arrow-up-right

  • Report bugs

  • Feature requests

  • Open source contributions

I have a feature request

We love hearing from users!

Submit via:

Include:

  • Clear description of feature

  • Use case and motivation

  • Expected behavior

  • Any mockups or examples

Popular requests get prioritized. Community feedback drives our roadmap.

How do I report a bug?

Bug reports should include:

Required:

  • Clear description of issue

  • Steps to reproduce

  • Expected vs actual behavior

Helpful:

  • Browser and version

  • Wallet and version

  • Transaction hash (if payment-related)

  • Screenshots or screen recording

  • Console errors (F12 → Console)

Send to: [email protected]

GitHub issues also welcome: github.com/yuki402-xyz/yuki402/issuesarrow-up-right

Where is the source code?

Yuki402 is fully open source:

🔗 GitHub: github.com/yuki402-xyz/yuki402arrow-up-right

What's open source:

  • ✅ Smart contracts (Solidity)

  • ✅ Frontend (Next.js/React)

  • ✅ API routes

  • ✅ Payment processing logic

License: MIT - Free to use, modify, and deploy

Contributions welcome! Check CONTRIBUTING.md for guidelines.

💰 Cost & Economics

How much will I actually spend?

Realistic cost estimates:

Light User (few requests per week)

  • Service fees: ~$5-10/month

  • Gas fees: ~$2-5/month

  • Total: $7-15/month

Regular User (daily requests)

  • Service fees: ~$20-50/month

  • Gas fees: ~$5-15/month

  • Total: $25-65/month

Heavy User (multiple requests daily)

  • Service fees: $100-300/month

  • Gas fees: $10-30/month

  • Total: $110-330/month

Pro tip: Set spending limits to enforce budget.

Why use x402 instead of traditional payments?

Traditional payments suck. Here's why x402 is better:

Feature
Traditional
x402/Yuki402

Settlement Time

2-3 days

2 seconds

Platform Fees

2-3% + processing

0%

Registration

Required

Not required

Personal Data

Collected

Not collected

Geographic Limits

Yes

No (global)

Chargebacks

Yes (fraud risk)

No (trustless)

Merchant Accounts

Required

Not required

Currency Support

Fiat only

Any token

Bottom line: Faster, cheaper, more private, and globally accessible.

Are there any hidden fees?

No. Zero. Nada.

What you pay:

  • ✅ Service fee (set by provider)

  • ✅ Gas fee (paid to blockchain validators)

What you DON'T pay:

  • ❌ Platform fees (Yuki402 charges 0%)

  • ❌ Subscription fees

  • ❌ Processing fees

  • ❌ Currency conversion fees (for crypto)

  • ❌ Withdrawal fees

  • ❌ "Service charges"

100% transparent. Every transaction visible on-chain.

The $YUKI exception: Hold $YUKI tokens for lifetime fee-free access. Don't hold? Pay tiny fee (~1%) that funds automatic buybacks. Either way, no hidden costs.


Still have questions? Email [email protected] or tweet at @yuki402xyzarrow-up-right. We're here to help.

Ready to try it? Head to yuki402.xyzarrow-up-right and experience autonomous payments firsthand.

Last updated