eSimerge API Documentation

A complete API to provision eSIMs, query status and usage, and receive signed webhook events. Built for partners.

Issue your first eSIM in 5 minutes — cURL, Node, Python, PHP, Go, Java, C#, Ruby.

Bearer keys, idempotency, rate limits, request signing.

Destinations (country / regional / global), plan types, data, voice, validity, pricing.

Issue eSIMs, fetch order details, status lifecycle, idempotency.

Activation, QR / SM-DP+, install URLs, usage.

Events, HMAC signatures, retries, secure verification.

Unified error envelope and a full list of error codes.

Download the Postman collection and start calling the API instantly.

Interactive Reference

OpenAPI 3.1 + Scalar — try every endpoint live.

Base URL: https://portal.esimerge.com/api/public/v1

All identifiers start with esm_. Authenticate via Authorization: Bearer esm_sk_….