APEX Cloud - A Centralised Solution for Comprehensive Management of APIs | Singapore Government Developer Portal
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APEX Cloud is a full-fledged API management solution that allows developers, product teams, agencies, and businesses to manage APIs across various stages – from registration to publication to retirement. It was born out of the need to reduce the complexity of managing multiple APIs. Compared to other API management solutions, APEX Cloud is accessible from both the intranet and the internet and is compliant with ICT&SS management guidelines (formerly known as IM8) as well as various governance standards. With more than 30 agencies onboarded, APEX Cloud has standardised government API sharing practices.

The importance of effective API management is highlighted by the fact that APIs are critical for accessing information and functionalities across systems. Within the government, APIs are important for facilitating data exchange and enabling cross-collaboration and innovation. For businesses, they help to drive efficiency and digital services.

Thus, through APEX Cloud, overheads for API management can be reduced, enabling users to focus on designing and developing solutions for their customers.

Future features of APEX Cloud include API-as-Code and the API Marketplace.

Key Benefits

Provides an Identity and Access Management (IAM) platform and access control of APIs for government-to-government (G2G) & government-to-business (G2B) API programmes. The ways that this is achieved are as shown below.

  • Supports both TechPass (government users and vendors) and Corppass (for businesses) access
  • Established workflow to request and approve API subscriptions
  • API keys are securely distributed throughout APEX Cloud’s portals

Provides template dashboards and log management through the following features.

  • The Elastic, Logstash and, Kibana (ELK) stack is offered through StackOps and this provides template dashboards for reporting.
  • The ELK stack also comes with a comprehensive search function to support tracing and debugging

Facilitates collaboration between agencies and encourages discovery of WOG API offerings.

  • With over 30 agencies onboard APEX Cloud, users can experience a diversity of APIs and cross-sharing

Security compliant with cross-zone support for internet and intranet environments

  • APEX Cloud is security-compliant and keeps up with policy changes and updates on a regular basis
  • Integration of APEX Cloud with best practices and standards helps users keep up with the latest API and security best practices

Incorporation of industry standardisation and best practices for user security

  • Mutual Transport Layer Security (TLS) with JWKS (JSON Web Key Sets) and secured data exchange with JWT (JSON Web Token) for same and cross-zone exchange
  • API sandbox to promote discovery and self service sampling of APIs

Unsupported features

By default, APEX Cloud does not support the following:

  • Orchestration or data transformation
  • Business logic customisation

For further enquiries, please contact us.

Technical Specifications

APEX Cloud Defaults Can be increased/decreased? (Quotas)
Authentication Inbound:
JWT Authentication
AWS Signature v4,
custom policies
Not Applicable
JWT Authentication -
JWT Issued At Time Drift
5 seconds No
JWT Authentication -
JWT Expiry Time
180 seconds No
Authorization Token-based AuthZ with OAuth,
OAuth with Singpass/Corppass
Not Applicable
Protocols Supported SOAP, REST, JSON, XML Not Applicable
Payload Size Limit (Send) 10 MB No
Payload Size Limit (Receive) 10 MB No
Concurrent connections 128 Yes
Connection timeout 30 seconds Yes
Active timeout 30 seconds Yes
Max Transaction Per Second (API) 20 Yes
Max Transaction Per Second (Application) 20 Yes
API Deprecation Header x-api-deprecated Not Applicable
API Retirement Date Header x-api-retire-time (in UTC) Not Applicable


Currently, only API publishers have to pay to use APEX Cloud. For more information, refer to the indicative pricing details for APEX Cloud.

Contact Us

Reach out to the product team with your queries or feedback through this form.

Last updated 11 April 2024

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