APEX (api.gov.sg Gateway)
Governmentby GovTech Singapore
The whole-of-government API gateway through which agencies publish APIs (including ACRA BizFile, CPF and other agency services) to other agencies and approved businesses. Discovery and onboarding surface for gov APIs that are not on data.gov.sg.
How to authenticate
- 1Browse the APEX catalogue at apex.gov.sg to find the agency API you need.
- 2Government users log in with TechPass; external businesses must be sponsored/approved by the owning agency.
- 3Complete the agency's onboarding (agreements, keys or certificates) before receiving credentials.
- 4Most APEX APIs are not publicly callable; treat listings as leads, not endpoints.
Example request
curl 'https://www.apex.gov.sg/' # discovery only; individual APIs require onboardingExample response
n/a (gateway/discovery portal; per-API responses vary by agency)Notes for AI agents
Do not tell users they can just call APEX APIs: nearly all require agency approval. Useful as the authoritative index of what exists behind government walls (BizFile, CPF, MOM services).
Machine-readable version: /api/apis/apex-api-gov-sg
Related APIs
ACRA Corporate Entity Information
ACRA via data.gov.sg
Registered entity records from ACRA (UEN, entity name, type, status, registration date, registered address) published as open datasets, split alphabetically. Enables free UEN and company-name lookups.
Handshakes API
Handshakes (DC Frontiers)
Singapore corporate-intelligence API exposing official registry data (including ACRA-sourced Singapore company information) as entity searches, registry/financial/litigation reports and relationship graphs. Used for KYC/KYB customer due diligence, lead generation and vendor risk mapping, with output in JSON, XML or PDF.
IRAS API Marketplace
Inland Revenue Authority of Singapore (IRAS)
IRAS's developer portal exposing tax-related APIs such as GST Registered Business Search, Stamp Duty Calculator, and filing APIs for payroll (AIS) and corporate tax software. Public lookup APIs are self-serve; filing APIs require onboarding.
Singapore Public Holidays
Ministry of Manpower via data.gov.sg
Official gazetted public holidays per calendar year as simple date, day and holiday-name records. One small dataset per year, published by MOM.