Mailsac API
Overview
Mailsac lets you create disposable email addresses and read incoming messages via API — ideal for testing email-sending features in your app. You can check any @mailsac.com inbox without creating an account first. Use an API key for higher rate limits and private inboxes.
Beginner Tip
Public @mailsac.com inboxes are readable by anyone who knows the address, so never use them for sensitive data. For private inboxes, use a paid plan and set a custom address.
Available Data
Example Response
{
"message_id": "msg_abc123def456",
"status": "delivered",
"to": "[email protected]",
"subject": "Welcome!",
"timestamp": "2025-01-15T10:30:00Z"
} Field Reference
_id Unique message identifier inbox Email address of the inbox subject Subject line of the email from Sender address objects received ISO 8601 timestamp when the message was received size Message size in bytes Implementation Example
// ⚠️ Note: This URL may be a documentation page. Check official docs for actual API endpoint.
const url = "https://mailsac.com/docs/api";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
headers: {
"X-API-Key": "YOUR_API_KEY"
}
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Matrix Score Breakdown
Partially tested on Apr 5, 2026
Technical Specifications
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