HAGGIN vs send21
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
| Detail | 
HAGGIN | 
send21 |
|---|---|---|
| What it does | Before they leave, ask what they'd pay. | Non-custodial crypto payment links and API for people and AI agents |
| Stage | Not given | Not given |
| Founded | Not given | Not given |
| Based in | ES | Not given |
| Pricing model | Not given | Paid |
| Pricing | Free: 1 Haggin live up to 14 days, no card required. Pro: $9/month (first month $1), up to 5 live Haggins with permanent or time-limited options, webhooks, API, and private Haggins. Business: $29/month (first month $1), unlimited live Haggins plus everything in Pro with personalised support and earl | 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 |
|
|
| What makes it different |
| 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 −1 (down) since last check | 6 +2 (up) since last check |
| Trust Flow (Majestic) | 6 | 15 |
| Citation Flow (Majestic) | 27 | 28 |
| Referring domains (Majestic) | 24 | 35 |
3 details filled in for both companies.