Personal Data Protection Act 2012: Singapore's primary data protection legislation that governs the collection, use, disclosure, and handling of personal data. Must be considered for API data handling and storage requirements.

Computer Misuse Act: Legislation governing cybercrime and unauthorized access to computer systems. Relevant for API security measures and breach response protocols.

Electronic Transactions Act: Provides legal framework for electronic transactions and digital signatures. Important for API contract formation and electronic records.

Cybersecurity Act 2018: Establishes framework for protection of critical information infrastructure. Relevant for API security standards and incident reporting.

IMDA Technology Risk Management Guidelines: Regulatory guidelines for technology risk management practices. Provides standards for API availability, reliability, and security controls.

MAS Technology Risk Management Guidelines: Specific guidelines for financial sector technology risk management. Applicable if API services involve financial services.

Cloud Outage Incident Response Guidelines: Guidelines for managing cloud service disruptions. Relevant if API is cloud-based or uses cloud infrastructure.

Singapore Contract Law: General contract law principles governing formation and enforcement of contracts in Singapore. Forms the legal basis for SLA agreements.

Consumer Protection (Fair Trading) Act: Protects consumers against unfair practices. Relevant if API services are provided to consumers or small businesses.

Cross-border Data Transfer Regulations: Rules governing international data transfers. Important if API serves international clients or processes data across borders.

Industry-Specific Regulations: Sector-specific compliance requirements varying by industry (healthcare, finance, etc.). Must be considered based on API's application domain.

Dispute Resolution Framework: Singapore's legal framework for resolving commercial disputes. Essential for including appropriate dispute resolution mechanisms in the SLA.