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These APIs are for Partners managing Merchant Collection Accounts. Merchants must be fully activated before the Account Fetch API returns data.

Endpoints


Authentication

Both endpoints authenticate via the x-api-key header. No request signing is required — API key only.

Servers


Integration Guide

For the conceptual walkthrough — lifecycle states, webhook events, and the full upload flow — see the MCA Integration Guide.

MCA Overview

What MCA is, how it works, and how to integrate.

MCA Webhooks Guide

All four lifecycle events and how to handle them.