pay3: The "Linktree" for Crypto Payments—One Link for All Your Wallet Addresses

2026-01-28 | ProductHunt | Official Website

30-Second Quick Judgment

What it does: Turns your multi-chain crypto wallet addresses into a short link (pay3.so/@yourname). Senders can simply open the link, choose their currency, and pay directly without you having to copy-paste 42-character addresses.

Is it worth your attention?: If you frequently receive crypto (freelancing, content creation, splitting bills), it's worth 5 minutes of your time. It's free, has zero fees, and is non-custodial. However, if you're a merchant needing fiat conversion or invoicing, this isn't for you.

Three Questions: Why Should I Care?

Is it for me?

Target Users: Crypto-native users who frequently send/receive stablecoins—freelancers, content creators, small merchants, and friends splitting bills.

Are you one of them? If you've ever done any of the following, you're the target:

• Put a wallet address in your social media bio.
• Sent a message like "Please send USDT to this address, make sure to use the TRC20 network."
• Felt nervous about potentially making a mistake while copying an address.

Use Cases:

• Freelancers: Receiving international payments → Send one pay3 link instead of a list of addresses.
• Creators: Accepting tips → Put one link in your bio.
• Friends: Splitting the check → No need to ask "Which chain do you use?"

Is it useful to me?

ROI Judgment: Zero cost to try. If you receive crypto payments more than once a week, it's worth it.

Is it worth the hype?

The "Aha" Moments:

• One link replaces all wallet addresses, as clean as Linktree.
• Auto-detects chain types and recommends the cheapest network, so the sender doesn't have to worry.

Real User Feedback:

"clean stack. curious how you're handling multi-chain address detection?" — @Saurabh Pandey (ProductHunt)

"it's pattern-based detection, pretty straightforward actually. 0x + 42 chars -> EVM, T + 34 chars -> Tron, 44 char base58 -> Solana" — @Varun Goel (Founder, ProductHunt)

To be honest, it only has 102 votes on PH and few comments. This is a very early-stage product without a massive amount of real-world feedback yet.

For Independent Developers

Tech Stack

• Core Logic: Pattern-based regex detection (identifies chain type based on address format).
• Supported Chains: Ethereum, Tron, Solana, BNB Smart Chain (coming soon).
• Supported Tokens: USDT, USDC, ETH.
• Backend: Likely Java Spring Boot (based on team LinkedIn profiles).
• Frontend: Likely ReactJS.
• Architecture: Non-custodial, wallet-to-wallet direct connection, no intermediate accounts.

How the Core Features are Implemented

Essentially, it's an address routing layer. You register and bind your addresses for various chains. The system displays the correct receiving address based on the sender's choice of token and network. Multi-chain detection is handled via simple regex:

0x + 42 chars → EVM chains (Ethereum, BSC, etc.)
T + 34 chars → Tron
44 chars base58 → Solana

Technically, it's not complex. The core value lies in the product design (UX + branding) rather than a high technical barrier.

Open Source Status

• Not open source. No code for pay3.so is found on GitHub.
• Similar open-source projects: BTCPayServer (Self-hosted crypto payments, but merchant-focused).
• Difficulty to replicate: Low. A full-stack developer could build an MVP in a few days. The challenge isn't the tech; it's user acquisition.

Business Model

• Zero fees, currently completely free.
• Monetization path: Unclear—possible routes include premium features (custom domains, API access, team collaboration) or enterprise versions.
• Parent company Todayq has other revenue streams (Koinpr marketing, HASH media); pay3 might be a traffic funnel for their ecosystem.

Giant Risk

PayPal is already doing similar things. In September 2025, PayPal launched P2P payment links and is adding crypto support. This is a direct threat—PayPal has a massive user base and fiat off-ramp capabilities. pay3's differentiator is being fully decentralized, non-custodial, and zero-KYC—things PayPal cannot do. If users care about "censorship resistance," pay3 has a niche; if they just want convenience, PayPal wins.

For Product Managers

Pain Point Analysis

• Problem Solved: Messy crypto address management—different addresses for different chains, easy to copy-paste wrong, and risk of losing money on the wrong network.
• Severity: A frequent pain point for power users (freelancers, creators). For casual users who transfer once a month, the pain isn't as acute.

User Personas

Feature Breakdown

Competitor Comparison

Key Takeaways

1. Minimalist Registration: Username + Wallet Address = Done. No forms, no KYC.
2. Smart Network Recommendation: Reduces user decision fatigue by picking the cheapest chain.
3. Linktree-style Thinking: Packages complex multi-address problems into a simple, shareable link.

For Tech Bloggers

Founder Story

• Founder: Varun Goel
• Background: Dropped out of school at 16, started in crypto in 2017. From an Indian middle-class family; father is a retired HUL employee.
• Life Turning Point: Suffered a severe car accident just one month into school, leaving him bedridden for six months. He started his business on a laptop two weeks into recovery, beginning with Instagram motivational pages and eventually building Todayq.
• Todayq Ecosystem:
  • Koinpr — Web3 marketing studio
  • HASH Media — Crypto culture media (formerly Todayq News)
  • pay3 — Crypto payment links
• Quote: "We put a man on the moon but still make people type hexadecimal strings to send $100."

Controversies / Discussion Angles

1. The "This is too simple" angle: The technical barrier is extremely low. Where is the moat? What is the competitive advantage?
2. The PayPal Entry angle: Giants launched similar features in 2025. How can a small team survive?
3. The "Does anyone actually use crypto for payments?" angle: 430 million people hold crypto, but daily payment usage remains extremely low.

Hype Data

• PH Ranking: #11 Daily Top, 102 votes—decent, but not a viral hit.
• Twitter/X Discussion: Almost no public discussion; very low buzz.
• Media Coverage: Reported by bitcoinethereumnews.com and coindoo.com (crypto niche media).

Content Suggestions

• Best Angle: The "16-year-old dropout's crypto journey" is a compelling narrative.
• Comparison Piece: pay3 vs. PayPal Payment Links—the battle for decentralized vs. centralized crypto payments.
• Not Recommended: A pure product review (the features are too simple to sustain a full article).

For Early Adopters

Pricing Analysis

It appears to be completely free. Note: You still pay gas fees; pay3 just doesn't add an extra fee on top.

Getting Started Guide

• Setup Time: 2 minutes
• Learning Curve: Extremely low
• Steps:
  1. Visit pay3.so and register a username.
  2. Bind your wallet addresses (supports EVM/Tron/Solana).
  3. Share pay3.so/@yourusername with the sender.
  4. The sender opens the link, picks a token, enters the amount, and pays.

Pitfalls and Precautions

1. Limited Chain Support: Currently only Ethereum, Tron, and Solana. BNB Chain is "coming soon." No Bitcoin, no Layer 2s (Arbitrum, Optimism, etc.).
2. Limited Token Support: Only USDT, USDC, and ETH. Want to receive DAI or WBTC? Not supported.
3. No Security Audit: No third-party audit reports found. For a product handling financial data, this is a risk.
4. New Product: Small user base means higher risk of the product being discontinued.
5. Non-custodial but requires trust: While it's non-custodial, you must trust that the frontend code hasn't been tampered with to swap addresses. Without open source or audits, this relies purely on trust.

Security and Privacy

• Data Storage: Unclear.
• Custody Model: Non-custodial, direct wallet-to-wallet.
• Security Audit: No public audit.
• Privacy: No KYC required.

Alternatives

For Investors

Market Analysis

• Crypto Payment App Market: $623.92M in 2025 → $2.95B in 2035, CAGR 16.8%.
• Crypto Payment Gateway: $1B in 2021 → $5.4B in 2031, CAGR 18.7%.
• Growth Drivers: 430M global holders, clearer regulations, rising stablecoin usage.
• Niche: pay3 targets "personal crypto payment links," a very small sub-segment with no independent market size data.

Competitive Landscape

Timing Analysis

• Why now?: Stablecoin usage is surging in 2025-2026. PayPal's entry into crypto links validates the demand.
• Risk: Giants can cover pay3's entire functionality as a minor feature. This feels more like a feature for a larger platform than a standalone product.

Team Background

• Varun Goel: Founder/CEO. Started at 16, no traditional Big Tech background. Todayq has been operating since 2017, providing crypto industry experience.
• Team Size: Unclear, but appears to be a small team based on the PH launch.
• Past Products: Koinpr (Web3 marketing), HASH Media (crypto media)—both are active.

Funding Status

• pay3.so: No public funding info.
• Note: Online searches for "Pay3 $583K funding" refer to a different company, pay3.money (an enterprise stablecoin platform).
• Currently appears to be bootstrapped, with the parent company Todayq providing revenue.

Conclusion

A clean little tool that solves a real, albeit small, pain point. The technical barrier is almost zero; success depends on whether they can quickly capture the crypto-native community.

Resource Links

Sources

• bitcoinethereumnews - pay3 Turns Any Username into a Crypto Payment Link
• coindoo - pay3 Turns Any Username into a Crypto Payment Link
• Crunchbase - Varun Goel
• Crunchbase - Todayq
• imvarungoel.com
• founderINDIA - Todayq
• PayPal P2P Crypto Payment Links (TechCrunch)
• Crypto Payment Apps Market (ResearchNester)
• Crypto Payment Gateway Market (Allied Market Research)
• Crypto Payments Industry Statistics (CoinLaw)

2026-01-28 | Trend-Tracker v7.3