Where to find information on Openprovider API / EPP interface?

Question

Where Openprovider API / EPP documentation is located?

Answer

Openprovider has three APIs one can use: a new REST API and older XML API & EPP. For more information see following pages:

REST API documentation
XML API documentation
EPP documentation

"Invalid suffix field!" when trying to create a contact handle

How to add a VAT customer field in WHMCS

How to import domains to WHMCS manually

Managing Domain Renewals in WHMCS with Openprovider

Recommended Settings for the WHMCS Domain Registrar Plugin

WHMCS Domain Module - Install and configure Openprovider domain registrar module

WHMCS Email Solution Module - Installation and configuration

WHMCS Frequently asked questions

WHMCS Premium Global Anycast DNS module - Installation, configuration and management

WHMCS Registrar TLD & Pricing Sync Utility doesn't work or blank page is shown when running the sync

WHMCS SSL module - Installation, configuration and management

When submitting a contact the phonenumber is deemed invalid.

"This domain can only be renewed within 28 days from its expiration." error received via API

1 TLD API: Search an extension

10 Domains API: Check gTLD email verification status

11 Domain API: Start gTLD email verification

12 Domains API: Restart gTLD email verification

13 Domains API: How to create a domain

14 Domains API: How to transfer a domain

15 Domains API: How to request or reset an authcode

16 Domains API: How to approve outgoing domain transfer

17 Domains API: How to restart domain transfer

18 Domains API: How to renew a domain

19 Domains API: How to restore a domain

2 Domains API: Check Domain

20 Domains API: How to delete a domain

21 Domains API: How to update domain's attributes

22 Domains API: How to trade a domain

3 Domains API: How to retrieve domain price

4 Domains API: How to retrieve TLD specific data

5 Domains API: How to retrieve TLD specific customer additional data

6 Customers API: How to create a customer handle

7 Customers API: How to get an existing handle

8 Customers API: How to modify a handle

9 Customers API: How to delete a handle

1 Choosing a product

10 Renewing SSL Certificate

11 Open an access to an end user

12 Cancelling SSL Order

2 Creating a CSR

3 Retrieving list of an approver emails

4 Creating SSL Order

5 Retrieving SSL Orders

6 Updating SSL Order

7 Updating an approver email address

8 Resending an approver email

9 Reissuing SSL Certificate

Appendix: CSR Country Codes

Appendix: Openprovider Products ID

1 Zones API: How to create a zone

2 Zones API: How to retrieve a zone

3 Zones API: How to modify a zone

4 Zones API: How to delete a zone

5 Zones API: Templates

API Error Codes

CTE (Customer Test Environment) [deprecated]

How Reseller can respond to Abuse Reports via API

How long API Bearer Auth token is valid for?

PowerShell Integration with Openprovider API

Sandbox Testing Environment

Webhook Notification System

What are Openprovider API calls limits?

Where to find information on Openprovider API / EPP interface?

API Guides: Glossary

Getting started with Openprovider API

How to configure Openprovider HostBill plugin / module for domains, SSL certificates and Plesk licenses?

Setting up the Openprovider module for Blesta

Where to find information on Openprovider API / EPP interface?

Question

Answer