OpenInbox.io

OpenInbox.io

Disposable email inboxes via API. Create inboxes in seconds, receive emails programmatically, and keep your real address private. Built for developers, QA teams, and CI/CD pipelines — with webhooks, custom domains, and a verified n8n integration.

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All-time revenue
$1,863

Ranked #3285 on TrustMRR

MRR
$308

20 active subscriptions

Founder
openinboxioDevNplay

2 followers on 𝕏

Founded
February 2026

Revenue is verified withPolarPolar API key.Last updated: Oct 20, 2026, 09:24 AM

Startup insights
Value proposition

The most developer-friendly temporary email service — with an API, webhooks, and real-time delivery.

Problem solved

Protect your primary email from marketing spam and unwanted newsletters, and test applications and verify email functionality during development.

Audience

Developers

Pricing

Free: $0, Pro: $7/mo, Business: $15/mo, Premium: $29/mo

Domain Rating

17/100

openinbox.io

Ahrefs Domain Rating measures backlink profile strength on a 0 to 100 logarithmic scale.

Screenshot

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