Singapore data for people and AI agents

Plain answer pages for common Singapore questions, rendered on the server with the value, the time it was true and a link to the official source. The same data is available as JSON and as MCP tools, with no key and no sign-up.

Next public holiday in Singapore: Deepavali, Sunday 8 November 2026.

Pages

• Singapore public holidays 2026: All 2026 public holidays with observed Monday holidays, from MOM.
• Singapore public holidays 2027: All 2027 public holidays with observed Monday holidays, from MOM.
• Is it a public holiday in Singapore?: Yes or no for any date in 2026 or 2027, plus the next public holiday.
• Singapore working days calculator: Add N working days to a date, or count working days between two dates, skipping weekends and public holidays.
• Singapore PSI and haze today: Latest 24-hour PSI and PM2.5 by region from NEA.
• Singapore weather today: NEA 24-hour forecast: conditions by region, temperature, humidity and wind.
• Latest COE results: Quota premiums for Categories A to E from the latest LTA bidding exercise.
• Singapore postal code lookup: Postal code to address, building type, nearest MRT and postal district.

JSON API

• GET https://mcp.connective-labs.com/api/v1/sg/holidays?year=2026 or ?date=YYYY-MM-DD
• GET https://mcp.connective-labs.com/api/v1/sg/business-days?from=YYYY-MM-DD&add=5 or ?from=YYYY-MM-DD&to=YYYY-MM-DD
• GET https://mcp.connective-labs.com/api/v1/sg/psi
• GET https://mcp.connective-labs.com/api/v1/sg/weather
• GET https://mcp.connective-labs.com/api/v1/sg/coe
• GET https://mcp.connective-labs.com/api/v1/address?query=560123 (postal code or address)

Spec: /openapi.json. Any page here also returns markdown when the request sends Accept: text/markdown or adds ?format=md.

MCP tools

MCP server (Streamable HTTP, no auth): https://mcp.connective-labs.com/sg-buying-desk. Tools: sg_business_days (public holiday check, add or count working days), sg_weather_psi (NEA 24-hour forecast and PSI), resolve_sg_address, singapore_how_to.

How fresh is it?

Weather and PSI are fetched from NEA's real-time API on data.gov.sg about every 30 minutes, COE results about every 6 hours, and the MOM holiday lists daily (with MOM's calendar file as a fallback). Each page shows the time its values were true and when they were read.