Free AI APIs for Startup - 12 Free AI tools

Lightfield

AI CRM that remembers everything and does the work for you.

CRM

Open

19,742 lightfield.app

Love this CRM. No fields to configure or pipeline to define, it just does everything for you.

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🇺🇸 United States

Released 4mo ago

Free + from $59/mo

35,804

803

4.5

Fabricate v2.0

Fabricate builds entire web apps from a single prompt - free!

Vibe coding

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amazing apps

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Released 4mo ago

Free + from $25/mo

8,156

86

4.1

AI Builder | Hostinger Horizons v2.1.3

Build web apps and websites without writing any code.

Websites

Open

54,365 www.hostinger.com

Domantas Patinskas

🙏 31 karma

Sep 8, 2025

@AI Builder | Hostinger Horizons

Hey! My name is Domantas and I invite all fellow solopreneurs, business and product owners to try Hostinger Horizons. Using it is super simple - you are creating a website or application just by prompting - chatting with AI. No struggle, code or design skills are needed. You can literally have your website live in few minutes. Looking forward for your feedback!

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🇱🇹 Lithuania

Released 8d ago

Free + from $6.99/mo

59,927

82

4.5

Preuve AI - AI Startup Idea Validator 2.0

The startup validator that says no. Source-linked, with proofs.

Startup idea validation

Open

31,914 preuve.ai

Julio

🙏 3 karma

Jan 25, 2026

@Preuve AI - AI Startup Idea Validator

So I tested out Test Your Idea, and it actually works pretty well. You put in your idea, wait a minute, and it shows you the stuff you've been missing. Got some decent pivot suggestions that helped me refocus from a tiny niche to something way bigger. Saved me from probably wasting a few months in the wrong direction if you're actually gonna build something, not just daydreaming about it

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Released 3mo ago

Free + from $29

34,809

44

5.0

ChatMaxima

Transforming conversations into conversions.

Chatbots

Open

1,867 chatmaxima.com

Easy to create Chatbots and there is a easy using with existing templates

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🇮🇳 India

Released 3y ago

Free + from $49/mo

3,488

17

4.7

PropelRx

AI-powered fundraising readiness platform for Series A and Series B founders

Fundraising

Open

60,182 www.propelrx.ai

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🇺🇸 United States

Released 4mo ago

Free + from $99/mo

61,619

14

5.0

GPTProto

Unified Access to Every Leading AI Model in One Platform

Content

Open

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Released 10mo ago

Free + from $5

1,314

9

2.5

Imagine.bo

The AI Tech Co-Founder for Serious Founders

Vibe coding

Open

3,368 app.imagine.bo

I'm non-technical and I've tried Lovable, Emergent, Bolt. Nothing comes close to imagine.bo right now. The UI is clean and dead simple: type your idea, watch it build a real full-stack app in minutes. But what actually blew me away? Whenever I got stuck and had no idea what to do next, I clicked Hire a Human and a real engineer jumped in and sorted it out. No Fiverr. No agency. One platform, start to finish.

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🇮🇳 India

Released 4mo ago

Free + from $5/mo

4,459

23

5.0