8 businesses built with FastAPI
Every business on Build Radar that runs on FastAPI, with its monthly revenue, age and moats — and whether you can vibecode it. Find one. Build it with Leapd.
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- All
- AI204
- SaaS61
- Marketing58
- Content Creation44
- Productivity44
- Dev Tools35
- Education28
- Social Media23
- E-comm16
- Fintech16
- Design Tools15
- Analytics14
- Marketplace14
- Entertainment13
- Health & Fitness12
- Community9
- Sales9
- Utilities9
- Games7
- No-Code7
- Recruiting & HR6
- Security6
- Customer Support5
- Travel5
- Real Estate4
- Legal1
- News & Magazines1
- Other1
- Uncategorized1
Top businesses by revenue
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 $46.3k/mo Adspirer is the AI-powered paid media agent for every business. We're building a future where any founder, marketer, or agency can manage their entire advert… Marketing · 8 moKinda Build This →Adspirer is the AI-powered paid media agent for every business. We're building a future where any founder, marketer, or agency can manage their entire advert… Marketing · 8 moKinda |
$25.3k/mo A tool for self-publishing authors to manage their social media. Content Creation · 3 yrsKinda Build This → |
$11.1k/mo AltIndex is an alternative data platform for investors. Every day it collects Reddit, TikTok, Instagram, news, job posting, insider/congress trading data and more on about 3,000 US stocks, with history back to 2021, and turns it into one 0 to 100 score per stock. Live products: a freemium web and mobile app (iOS and Android) with monthly and annual Pro plans, a B2B data API, and an AI assistant connector. The AltIndex newsletter adds sponsorship revenue. Fintech · 3 yrsKinda Build This →AltIndex is an alternative data platform for investors. Every day it collects Reddit, TikTok, Instagram, news, job posting, insider/congress trading data and more on about 3,000 US stocks, with history back to 2021, and turns it into one 0 to 100 score per stock. Live products: a freemium web and mobile app (iOS and Android) with monthly and annual Pro plans, a B2B data API, and an AI assistant connector. The AltIndex newsletter adds sponsorship revenue. Fintech · 3 yrsKinda |
 $1.7k/mo We provide a cloud-based AI analytics SaaS that helps users process, visualize, and research complex data streams automatically. Fintech · 1 yrYes Build This →We provide a cloud-based AI analytics SaaS that helps users process, visualize, and research complex data streams automatically. Fintech · 1 yrYes |
 $1.6k/mo Personal chatbot assistant that lives on WhatsApp & Telegram. Helps users with reminders (+ to friends), note-taking, calendar management, and more. Productivity · 2 yrsYes Build This →Personal chatbot assistant that lives on WhatsApp & Telegram. Helps users with reminders (+ to friends), note-taking, calendar management, and more. Productivity · 2 yrsYes |
$1.6k/mo Tradevipe is a white-label, B2B SaaS platform serving trading communities, prop firms, and brokers by providing them with fully branded trading journal web applications tailored for their users. Founded three years ago, Tradevipe has quickly established itself as the go-to solution for organizations seeking a scalable, turn-key trading journal that enhances trader engagement, accountability, and retention under their own brand. SaaS · 3 yrsYes Build This →Tradevipe is a white-label, B2B SaaS platform serving trading communities, prop firms, and brokers by providing them with fully branded trading journal web applications tailored for their users. Founded three years ago, Tradevipe has quickly established itself as the go-to solution for organizations seeking a scalable, turn-key trading journal that enhances trader engagement, accountability, and retention under their own brand. SaaS · 3 yrsYes |
 An AI Native company trying to reimagine the development, shipping and marketing cycle with AI first workflows AI · 6 moYes Build This →An AI Native company trying to reimagine the development, shipping and marketing cycle with AI first workflows AI · 6 moYes |
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🗣️ Founder takes
What founders are saying about the businesses on Build Radar.
another api wrapper
14I like how quickly they get traction - could have huge potential and the business looks simple to copy!
1saw the foudner discussed his growth hack on hacker news, the product is simple but it needed som strong messaging to work
21tbh, I dont know why this worked, the market was crowsed and llmlite was opensource!!! anyone knows what was the edge?
18i know someone made $3m in 6 month doing this - he sells each ebook for $48 and you cna add your own child image as teh hero character in the book
27network effect is probobly teh best moat for them
26the whole product is an API call to vision models - they nailed the execution side
55it is pure execution with almost no mote
1it turned out google is not going to replace them anytime soon .. they are getting some moat in automation side ...
1europe is mess when comes to governance and security related
simple and high margin business - but there are many players and quality of service is vey important
18I see some founders already started building this- infra is hosted by AWS so the rest is just resource manganese and delivering high uptime service
1crowded space- it needs lost of funding to get off the ground
this needs human like voice to be valuable and generic text to voice doesn't cut it
bending spoon bought them for a reson ..
literally has nothing, i don't know why people pay so much...
1AI has already made creating designs so easy that the underlying editor is becoming less valuable.
Cursor proved developers will pay for AI that writes code. The bigger opportunity is an AI-native development platform that can build, test, deploy, and maintain entire products.
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