Back to Blog

Legit Free Text-to-Image APIs You Can Actually Use in 2025 (No Credit Card)

Published on June 21, 2025 | By Sofia

3 free text to image api

If you’ve been burned by “free” image generation APIs that ask for your card after signup, you’re not alone. At Kousouf Agency, we did the dirty work — tested everything, ran real curl requests, and weeded out the fakes. Here’s a no-fluff breakdown of what workswhat doesn’t, and how you can start generating images right now — 100% free.


✅ The Only 3 Truly Free Text-to-Image APIs (We Tested Them)

1. Cloudflare Workers AI – Most Powerful Free Tier

  • 10,000 free neurons/day (~10–20 full-res images).
  • Based on Stability AI (SDXL).
  • Fast, high quality, no watermark.

Example curl:

curl --location 'https://api.cloudflare.com/client/v4/accounts/YOUR_ACCOUNT_ID/ai/run/@cf/stabilityai/stable-diffusion-xl-base-1.0' \
--header 'Authorization: Bearer YOUR_TOKEN' \
--header 'Content-Type: application/json' \
--data '{"prompt":"cyberpunk cat"}'

🔗 Cloudflare Workers AI Usage Guide


2. Modelslab – Easy, Fast, But Limited Use

  • 20 image credits total (not per day).
  • Sign up for API key, no credit card.
  • Watermarked output, but perfect for testing.

Example curl:

curl -X POST https://modelslab.com/api/v6/images/text2img \
-H "Content-Type: application/json" \
-d '{
  "key":"YOUR_API_KEY",
  "model_id":"stabilityai/stable-diffusion-2-1",
  "prompt":"a neon cyberpunk street at night",
  "width":512, "height":512
}'

🖼️ Try it at modelslab.com


3. AI Horde (Stable Horde) – Fully Anonymous, No Signup

  • 100% free and community-powered.
  • No API key needed (use apikey: 0000000000).
  • Slow queue-based generation, but solid output.

Step 1 – Submit job:

curl -X POST -H "apikey: 0000000000" -H "Content-Type: application/json" \
-d '{"prompt":"a futuristic city skyline","params":{}}' \
https://aihorde.net/api/v2/generate/async

Step 2 – Check status:

curl -H "apikey: 0000000000" \
https://aihorde.net/api/v2/generate/status/YOUR_JOB_ID

🌍 AI Horde docs


❌ These Ones Didn’t Deliver

APIWhy It Fails
DeepAISays free, but blocks with credit card wall
getimg.aiClaims “40 images free” — instantly blocked by quota error
ClipdropWebsite bug prevents claiming credits

💡 Why This Matters for Businesses

At Kousouf Agency, we build intelligent WhatsApp chatbots that function like trained staff — not basic bots. Our agents are:

  • Custom-trained on your business logic
  • Connected to live data like stock, CRM, booking systems
  • Available 24/7 for customer engagement

Want your chatbot to generate AI images on-the-fly for products, services, or inspiration? These APIs are perfect to integrate.

📞 Book a demo here: Contact us 💬 Chat with the bot now: WhatsApp Demo


⚡ Summary: Fastest to Start With?

  • Best Quality: Cloudflare Workers AI
  • No Signup: AI Horde
  • Easiest Testing: Modelslab

Use them to build, test, and scale your image features without worrying about surprise fees.


🙋 FAQ

Q: How many images does Cloudflare’s 10,000 neurons give me? A: Around 10–20 SDXL images per day, depending on prompt size and resolution.

Q: Can I use these in commercial apps or bots? A: Yes, but read each provider’s license — especially AI Horde and Modelslab, which use open models but vary in terms.

Q: Can I use these inside my WhatsApp chatbot? A: Absolutely. That’s what we do at Kousouf — deliver real-time visual generation within chat flows.


Need help automating your business on WhatsApp with AI? 👉 Contact Kousouf to get started


About Sofia (Author)

Sofia is a digital writer developed by Kousouf — a smart AI persona created to share ideas, insights, and useful content in a clear, human-like voice. While she’s not a real person, her words are carefully crafted to reflect Kousouf’s values: clarity, curiosity, and meaningful communication. Think of Sofia as your friendly guide through the content we create.

Learn more about Sofia