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Digital Certificate Security Information

This page contains root and intermediate certificates and public key information needed to interface with ERCOTs Test and Production environments. 

MPIM Digital Certificate Roles
ERCOT’s Market Participant Identity Management (MPIM) system general description and list of digital certificate roles and associated profiles used by Market Participant USAs to assign roles to employees for certain ERCOT system access.

Certificate Documentation

ERCOT API Security Changes
PowerPoint slides from WebEx Presentation presented on 05/14/2019
May 15, 2019 - pptx - 167.3 KB
ERCOT Digital Certificate Download Process
Mar 22, 2024 - docx - 315.6 KB
ERCOT SSL Communication Standards
Oct 5, 2022 - doc - 290.5 KB
ERCOT Digital Certificate User Guide
Dec 26, 2024 - docx - 3.5 MB
ERCOT Digital Certificate Installation Video

Root Certificates

ERCOT CA
ERCOT's Production 2048 Client Root Certificate and Installation Instructions
May 26, 2023 - zip - 661.5 KB
ERCOT TEST CA
ERCOT's MOTE 2048 Client Root Certificate and Installation Instructions
May 26, 2023 - zip - 661.5 KB
GlobalSign RSA Organization Validation CA - 2018 Intermediate SSL Certificate
Jun 11, 2020 - zip - 1.3 KB
GlobalSign Root R3 SSL Certificate
Jun 11, 2020 - zip - 1.1 KB

API Key Certificates

ERCOT API Public Key (Valid from 01/31/2024 to 03/03/2025)
ERCOT's Production EWS and MarkeTrak API Public Key
Feb 22, 2024 - zip - 1.8 KB
ERCOT API Public Key (Valid from 02/07/2025 to 03/11/2026)
ERCOT's New Production EWS and MarkeTrak API Public Key
Feb 7, 2025 - zip - 1.8 KB
ERCOT Notifications Public Key (Valid from 05/30/2024 to 07/01/2025)
ERCOT's New Production Notification Public Key
May 31, 2024 - zip - 1.8 KB
ERCOT MOTE API Public Key (Valid from 01/29/2024 to 03/01/2025)
ERCOT's MOTE EWS and MarkeTrak API Public Key
Jan 31, 2024 - zip - 1.8 KB
ERCOT MOTE API Public Key (Valid from 02/06/2025 to 03/10/2026)
ERCOT's New MOTE EWS and MarkeTrak API Public Key
Feb 6, 2025 - zip - 1.8 KB
ERCOT MOTE Notification Public Key (Valid from 05/30/2024 to 07/01/2025)
ERCOT's MOTE Notification Public Key
May 31, 2024 - zip - 1.9 KB

Real-Time Co-optimization Plus Batteries (RTC+B) Market Trials Key Certificates

RTC+B MarketTrials Public Key (valid from 01/21/2025 to 02/22/2026)
ERCOT's Public Key for markettrialsapi.ercot.com/markettrialsapi.wan.ercot.com
Jan 22, 2025 - zip - 1.8 KB
RTC+B TEST MarketTrials Public Key (valid from 01/21/2025 to 02/22/2026)
ERCOT's Public Key for testmarkettrialsapi.ercot.com/testmarkettrialsapi.wan.ercot.com
Jan 22, 2025 - zip - 1.8 KB
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