Questions & guides

Setup guides, articles and help for teams building with Firsty

Installation guides

Guides and articles

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What our partners say

See how super apps, banks and travel brands use Firsty to keep their users connected.

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Need help?

  • Find answers to common questions in our help centre
  • Talk to the partner team directly from your dashboard
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Questions about the guides?

We know, it sounds too good to be true. But it’s real. Here’s how.

Where do I start if I want to resell eSIMs?

Start with How to become an eSIM reseller, then Buying eSIMs in bulk for evaluating providers. Building a travel eSIM marketplace covers schema, pricing and activation.

Which guides are for developers?

The Guide to telecom APIs, the eSIM API comparison (Firsty vs Twilio vs Telnyx) and Firsty vs Twilio. The developer docs on developers.firsty.app cover the API itself.

Are there examples of companies using Firsty?

Yes. The Belfius case study shows how a bank gave customers free data for its app abroad. The Pexx case study shows a crypto wallet that launched a white-label travel eSIM through the API.

Where can I get help with setup?

The help centre answers common questions about installation, going live, branding and billing, and the partner team is reachable from your dashboard.