Open Government, India
Indian Government Open Data
Indonesian Government Open Data.
Open Government, Indonesia API is a free Government API that requires no API key, is served over HTTPS and has unconfirmed CORS support.
Portal Satu Data Indonesia merupakan portal resmi data terbuka Indonesia yang dikelola oleh Sekretariat Satu Data Indonesia tingkat Pusat, Kementerian Perencanaan Pembangunan Nasional.
Details from data.go.id.

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Indian Government Open Data
The Open Government, Indonesia API is provided by Portal Satu Data Indonesia (data.go.id). Portal Satu Data Indonesia merupakan portal resmi data terbuka Indonesia yang dikelola oleh Sekretariat Satu Data Indonesia tingkat Pusat, Kementerian Perencanaan Pembangunan Nasional.
Yes. The Open Government, Indonesia API is listed in the Government category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
No. The Open Government, Indonesia API requires no authentication, so you can start making requests without signing up.
CORS support for the Open Government, Indonesia API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The Open Government, Indonesia API is served over HTTPS, so it's safe to use in production.