quietmoneyResend
An email-sending API for developers, covering transactional and marketing email, with inbound email, a CLI, multi-language SDKs and an MCP Server.
Founder Zeno RoOne-line growth story, compiled by us from public sources; speculation is marked separately below.
Checkout visits over time
| Checkout | 4–6 months ago avg | 3 months ago | 2 months ago | Last month |
|---|---|---|---|---|
| invoice.stripe.com | 0 | 318 | 10,257 | 9,473 |
| buy.stripe.com | 568 | 0 | 0 | 603 |
| pay.stripe.com | 178 | 0 | 1,636 | 0 |
1. Productwhat it sells, to whom, and how it charges
- Product
- An email-sending API for developers, covering transactional and marketing email, with inbound email, a CLI, multi-language SDKs and an MCP Server.
- Users
- Developers and startup teams building products with Next.js/Node and similar stacks who need to add email sending
- Positioning
- A new-generation email API with great developer experience and friendly to React/modern frameworks, positioned against SendGrid and Postmark
- Pricing
- Free tier with 3,000 emails per month; Pro $20/month (50K emails), $35/month (100K emails); Scale from $90/month Billing: subscription Free tier: yes Source: Existing
- Prices on site
- $0/mo (Free, 3,000 emails); $20/mo (Pro 50k); $35/mo (Pro 100k); $90/mo (Scal
- Sharing mechanics
- open source Links to GitHub repos: 'Self-hosted MCP Server' (github.com/resend/resend-mcp) and CLI 'Repository'; no open-source license claim for core product
- Rough new MRR
- $40,304 – $362,736 Checkout visits last month × 20–30% conversion × listed price. New revenue only; renewals skip checkout, so real MRR is usually higher.
“Links to GitHub repos: 'Self-hosted MCP Server' (github.com/resend/resend-mcp) and CLI 'Repository'; no open-source license claim for core product”Quote from the site
2. Channelswhere new users come from and what the traffic looks like
New-user source: Viral (Built-in sharing). Direct 67.2%, search 24.6%, brand keywords 91.8% (resend, resend pricing, resend api). It spreads through developer word of mouth and open-source SDKs/MCP; referrals come from supabase.com 5.22% (integration docs), titan.email 2.11% and producthunt.com 2.06%; social includes YouTube, Facebook and WhatsApp.
Last month's traffic sources
Top channel measured by Similarweb, others estimated by rank
Five-class attribution
| Attributable new users, last month | Share |
|---|---|
| 92% | |
| Other | 8% |
Direct + brand search 92%. Direct and brand search count as viral only when the site shows sharing mechanics; the largest share wins, under 5% means Other.
Countries
| Country | Share of visits |
|---|---|
| United States | 24.51% |
| India | 6.56% |
| Brazil | 6.22% |
| United Kingdom | 6.12% |
| Germany | 3.42% |
Language
English
Social sources
YouTube, Facebook, WhatsApp Webapp; Messaging: WhatsApp
AI assistants
outgoing chatgpt.com 9.05% (not incoming)
Keywords
1.7K keywords · brand ~92% · organic 99.98% / paid 0.02%
| Similarweb top 5 keywords |
|---|
| resend |
| resend email |
| resend pricing |
| resend api |
| resend login |
Referring sites
69 referring sites
| Site | Share of referrals |
|---|---|
| supabase.com | 5.22% |
| titan.email | 2.11% |
| producthunt.com | 2.06% |
Referrer categories
| Category | Share of referrals |
|---|---|
| Programming and Developer Software | 35.4% |
| Web Hosting and Domain Names | 26.82% |
| Computers Electronics and Technology - Other | 9.12% |
| Graphics Multimedia and Web Design | 8.49% |
| Business Services | 1.35% |
Site metrics (Similarweb, last month)
- Visits, last 3 months
- 6.7M (3 months)
- Visits MoM
- -3.84%
- Country rank
- United States #6075
- Category rank
- Graphics Multimedia and Web Design #31
- Bounce rate
- 36.58%
- Pages / visit
- 5.56
- Visit duration
- 00:05:33
- Industry
- Graphics Multimedia and Web Design
- Top 3 channels
- Direct › Organic Search › Referrals (top channel 67.17%)
3. Growth pathhow the first users arrived and what kept it growing
Classification
Basics
Timeline
Growth loop
Revenue and scale clues
Confidence and gaps
Other sites that started via “Existing audience”
Similar sitessame category, also growing via Viral
FAQ
How many checkout visits does Resend get per month?
About 10,076 last month (Similarweb estimate), #324 of 606; the month before was 11,893. Opening checkout is not paying, so this is not revenue.
Where do Resend's new users come from?
New-user source: Viral (Built-in sharing). The site has invite or share mechanics, and direct plus brand search is the largest source Direct 67.2%, search 24.6%, brand keywords 91.8% (resend, resend pricing, resend api). It spreads through developer word of mouth and open-source SDKs/MCP; referrals come from supabase.com 5.22% (integration docs), titan.email 2.11% and producthunt.com 2.06%; social includes YouTube, Facebook and WhatsApp.
How much does Resend cost?
Free tier with 3,000 emails per month; Pro $20/month (50K emails), $35/month (100K emails); Scale from $90/month
Dossier confidence: high. Parts 1 and 2 come from reading the site and Similarweb data; part 3 from public reporting, founder posts, Wayback snapshots, WHOIS and similar, with speculation marked.
The number: checkout visits is Similarweb's estimate of visits from the site to a checkout payment page; opening checkout is not paying, so this is not revenue. Small sites land on fixed buckets.
Data through last month. Page updated 2026-10-26.