BPCE DEVELOPER PORTAL - 89C3 API

App2App process

➤ Introduction

This service allows you to activate automatically (without PSU action) the banking app on PSU smartphone for identification and authentification process.

➤ Prerequisites

The PSU has to load and to use at leat once the latest retail banking mobile app (V6.4.0 and higher) available on Android and Apple app stores.

Note : PRO & ENT customer segments are not yet activated

The callback universal link (same principe as url callback) shall be definied in advance by the TPP :

if this link/url already exists on our 89C3 API gateways, there is nothing else to do

otherwise the TPP shall declare it using our API Register

Our "Universal links" links have been declared on iOS & Android platforms. It is not worthwhile to access to them e. g. using https://www.<codetab>.live.api.caisse-epargne.fr/89C3api/accreditation/v2/.well-known/apple-app-site-association which sends back an error code.

➤ Request

PSU banking app activation can be achieved in live production using a current STET API request (initiated by the TPP app on the same smartphone device) with the following endpoints :

Brand	App2App endpoint
	www.40978.live.api.palatine.fr/stet/psd2/oauth/authorize
	www.<codetab>.live.api.banquepopulaire.fr/stet/psd2/oauth/authorize (see <codetab> values on Banque Populaire API product data sheet)
	www.10548.live.api.banque-de-savoie.fr/stet/psd2/oauth/authorize

	www.<codetab>.live.api.caisse-epargne.fr/stet/psd2/oauth/authorize (see <codetab> values on Caisse d'Epargne API product data sheet)
	www.12579.live.api.banquebcp.fr/stet/psd2/oauth/authorize
	www.42559.live.api.credit-cooperatif.coop/stet/psd2/oauth/authorize
	www.30258.live.api.btp-banque.fr/stet/psd2/oauth/authorize

www.18919.live.api.natixis.com/stet/psd2/oauth/authorize

Otherwise, a webview will be displayed on PSU smartphone web browser if :

the banking app is not present on PSU device nor App2App compliant (not the latest version uploaded, see prerequisites)

the other endpoint format is used www.<codetab>.live.api.89c3.com/stet/psd2/oauth/authorize (can be used as a backup in case of App2App problem)