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Documentation Index

Fetch the complete documentation index at: https://docs.unosend.co/llms.txt

Use this file to discover all available pages before exploring further.

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1. Create an Account

Sign up at unosend.co/signup. Free plan includes 5,000 emails/month (200/day).
Signup

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2. Get Your API Key

Go to API Keys in your dashboard and create a key. It starts with un_.
API

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3. Add a Domain

Go to Domains and add your sending domain. Add the DNS records shown, then verify.
DOMAINS
# Add domain
curl -X POST https://api.unosend.co/v1/domains \
  -H "Authorization: Bearer un_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{"domain": "yourdomain.com"}'

# Verify after adding DNS records
curl -X POST https://api.unosend.co/v1/domains/{id}/verify \
  -H "Authorization: Bearer un_your_api_key"

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4. Send an Email

curl -X POST https://api.unosend.co/v1/emails \
  -H "Authorization: Bearer un_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "from": "hello@yourdomain.com",
    "to": ["user@example.com"],
    "subject": "Hello from Unosend",
    "html": "<h1>Welcome!</h1><p>Your first email.</p>"
  }'
Response: 
{
  "id": "550e8400-e29b-41d4-a716-446655440000",
  "from": "hello@yourdomain.com",
  "to": ["user@example.com"],
  "status": "queued"
}

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Next Steps

Domain Verification

Set up SPF, DKIM, and DMARC

API Reference

See all endpoints