Keyforge vs send21

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

Keyforge compared with send21
Detail	Keyforge	send21
What it does	Automated licensing for the software you sell	Non-custodial crypto payment links and API for people and AI agents
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Not given	Paid
Pricing	Personal plan: $199 once (2,000 licenses, 4 products, up to 5 devices per license, up to 1 payment account). Scale plan: $39/month (6,000 licenses, 8 products, up to 12 devices per license, up to 2 payment accounts, 14-day free trial).	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.
Key features	Payment automations with Stripe, Polar, and Lemon Squeezy integration Offline license validation with signed JWT tokens License upgrades and renewals Subscription management Device and activation management Magic link portal access Compatible with any programming language and framework	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
What makes it different	Offline verification - licenses validated locally with JWT tokens even without internet Secure AES-256 encryption for payment API keys	Not given
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)	24 no change since last check	6 +2 (up) since last check
Trust Flow (Majestic)	4	15
Citation Flow (Majestic)	25	28
Referring domains (Majestic)	30	35

3 details filled in for both companies.

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