send21 vs HaiPay

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

send21 compared with HaiPay
Detail	send21	HaiPay
What it does	Non-custodial crypto payment links and API for people and AI agents	Local-first payment infrastructure for global digital businesses
Stage	Not given	Startup
Founded	Not given	2025
Based in	Not given	HK
Pricing model	Paid	Paid
Pricing	One fee per payment: 0.49% on $0-$10, 0.39% on $10-$50, 0.29% on $50-$100, 0.19% on $100-$500, 0.14% on $500-$2,000, 0.09% on $2,000-$10,000, 0.04% on $10,000-$50,000, 0.02% on $50,000-$100,000, 0.01% above $100,000. Minimum $0.01, maximum $100. No subscription, setup fee or monthly minimum.	US-issued cards from 2.5% + US$0.30 per transaction; cards issued outside the US from 4.0% + US$0.30 per transaction; local payment methods from 1.2%; US$0 setup fee, US$0 annual fee, no minimum monthly billing.
Key features	REST API with scoped keys and batch drafts up to 25 per call Support for Bitcoin PSBT and batching wallets like Safe No KYC required, encrypted email storage only Idempotency keys for safe retries Shopify connection with custom app and setup help Fee collected separately on Ethereum and EVM chains via Safe batching	Global card acquiring with direct connection to major card networks Support for 150+ local payment methods including UPI, Pix, MoMo, Alipay and WeChat Subscription and recurring billing management Mass payouts to 50+ markets with minimum fee of 0.1 USD Multi-currency wallet and settlement USD virtual card issuing for advertising and AI subscriptions 24/7 multilingual customer support Local payment settlement as fast as T+1 in selected markets
What makes it different	Not given	Local payment methods reach 90% coverage in target markets with localized interfaces Dispute resolution 50% faster than traditional providers Fee reduction of 30-50% through transparent pricing and volume-based rates Capital efficiency improvement of 3-5x with fast local settlement 98% payout success rate with direct connection to local clearing systems
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	10 +4 (up) since last check	10 +3 (up) since last check
Trust Flow (Majestic)	15	2
Citation Flow (Majestic)	28	26
Referring domains (Majestic)	35	36

4 details filled in for both companies.

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