Introduction - PressOne eSIM Developer Platform

This document covers every endpoint a customer can call to integrate PressOne SMS
into their own systems. These endpoints are authenticated with your organisation's
API key (the x-api-key header) — they are separate from the dashboard/portal
endpoints, which use user logins.

Base URL: {BASE_URL}/api — replace {BASE_URL} with the host PressOne gives you (e.g. your production API domain).

All request/response bodies are JSON (except CSV export, which streams text/csv).

Send Content-Type: application/json on every request that has a body.