Send email in a few lines of code. A REST API that's actually simple.
POST your payload to a single endpoint and MisarMail handles delivery, tracking, and bounces. No SDK required, no infrastructure to run — just an API key. Completely free. No per-email pricing.
One request. That's it.
curl -X POST https://api.misar.io/mail/v1/send \
-H "Authorization: Bearer msk_your_key_here" \
-H "Content-Type: application/json" \
-d '{
"to": "[email protected]",
"from": "[email protected]",
"subject": "Welcome aboard",
"html": "<h1>Hello!</h1>"
}'Authenticate with your API key, POST a JSON body, get a message ID back.
Everything you need to send at scale
A predictable API surface with the building blocks production apps need.
Simple JSON
Predictable JSON request and response. Send your first email in minutes, no SDK required.
Instant delivery
Messages are queued and sent in milliseconds, with delivery status returned in real time.
Multi-recipient
Send to a single address or thousands of recipients in one call.
Attachments
Attach files up to 25 MB per message — invoices, reports, PDFs, and more.
Webhooks
Real-time events for delivery, opens, clicks, bounces, and complaints.
SMTP option
Prefer SMTP? Point any existing SMTP client at MisarMail and keep your current setup.
“We moved our transactional email to MisarMail's API in an afternoon. Integration was trivial and our inbox placement went up.”
Dev Team
Engineering, early-stage SaaS
API FAQ
- What's the API endpoint?
- Send email with a POST request to https://api.misar.io/mail/v1/send. Authenticate with a Bearer token (your API key, prefixed msk_) in the Authorization header.
- Do I need an SDK?
- No. The API is plain HTTP with JSON, so any language with an HTTP client works. We also publish a TypeScript/JS SDK and an MCP server if you prefer.
- Can I send both transactional and bulk email?
- Yes. The same API sends one-off transactional messages and large multi-recipient campaigns. Bounces, complaints, and IP warm-up are handled for you.
- How much does it cost?
- MisarMail is completely free with a generous tier — there's no per-email pricing on the free plan. Get an API key and start sending.
Get your API key and ship today
Free to start. No credit card. Send your first email in minutes.