Mailsac

mailsac.com

Provides disposable email inboxes that can be created and read programmatically via REST APIs, WebSockets, and webhooks for email testing.

The Mailsac API uses api key authentication; has freemium pricing; offers a free tier (Free plan with public inboxes and 1,500 Ops/month, no expiration); rate limits: Public @mailsac.com addresses are subject to throttling; custom domains have higher throttling limits (no specific numbers documented). Verified 2026-07-12 with per-field source links.

Other Verified 2026-07-12 medium confidence

Base URL

not documented null

no source

Auth

api_key

mailsac.com ↗

Free tier

Free plan with public inboxes and 1,500 Ops/month, no expiration

mailsac.com ↗

Pricing model

freemium

mailsac.com ↗

Pricing

Free; Indie $18/mo (25,000 Ops); Business $89/mo (2M Ops); Enterprise from $295/mo ($3,540/yr, 8M Ops); add-on Ops, domains, storage available

mailsac.com ↗

Rate limits

Public @mailsac.com addresses are subject to throttling; custom domains have higher throttling limits (no specific numbers documented)

mailsac.com ↗

OpenAPI spec

https://mailsac.com/openapi.json

unevidenced

MCP server

not documented null

no source