AI Writing API

Words that work.
Instantly.

Generate professional emails, compelling product descriptions, and engaging social posts with a single API call. Built for developers who refuse to compromise on quality.

api-request.sh
# Generate a professional email
curl -X POST https://writeapi.co/v1/generate \
  -H "Authorization: Bearer $API_KEY" \
  -d '{
    "type": "email",
    "prompt": "Follow up after demo",
    "tone": "professional"
  }'
Response · 230ms
{
  "content": "Dear Sarah,\n\nThank you for...",
  "tokens": 156,
  "cost": "$0.002"
}
50M+
Words Generated
99.9%
Uptime SLA
<200ms
Avg Response
2,000+
Happy Developers

Everything you need to automate content

Three versatile endpoints, one simple API. Generate any text format with natural language prompts.

Professional Emails

Sales follow-ups, customer support, cold outreach. Every email sounds like you wrote it yourself—because the AI learns your tone.

Product Descriptions

SEO-optimized, conversion-focused copy that sells. Input features, output compelling narratives that turn browsers into buyers.

Social Content

Platform-native posts for Twitter, LinkedIn, Instagram. Character-optimized, hashtag-smart, engagement-engineered.

Integrate in minutes, not months

A simple REST API that fits into any stack. No ML expertise required.

1

Get Your API Key

Sign up and receive your key instantly. No credit card required for the free tier.

2

Make a Request

Send a POST request with your content type and prompt. That's it—one endpoint does it all.

3

Get Perfect Content

Receive polished, ready-to-use text in under 200ms. Pay only for tokens used.

Simple, honest pricing

No hidden fees. No complicated tiers. Just pay for what you use.

Starter
For side projects and testing
$29/month
  • 1,000 API calls per month
  • All content types included
  • Email support
Scale
For high-volume applications
$299/month
  • 25,000 API calls per month
  • All content types included
  • Dedicated support
  • 99.9% SLA guarantee

Ready to write smarter?

Join 2,000+ developers already using WriteAPI. Start free today.

Get Your API Key