
Australian address autocomplete, validation and geocoding from the G-NAF national register.
Locio API is a free Geocoding API that requires apiKey authentication, is served over HTTPS and supports CORS, so it can be called from the browser.
Resolve an Australian address to a G-NAF id, coordinates, ABS mesh block and structured components. Suggest, resolve, fuzzy match and retrieve by id, with samples in six languages.
Details from locio.com.au.

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UK postcode lookup with lat/lon, district, ward, constituency
The Locio API is provided by Locio (locio.com.au). Resolve an Australian address to a G-NAF id, coordinates, ABS mesh block and structured components. Suggest, resolve, fuzzy match and retrieve by id, with samples in six languages.
Yes. The Locio API is listed in the Geocoding 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.
Yes. The Locio API uses apiKey authentication, so you need to register for credentials before making requests.
Yes. The Locio API supports CORS, so front-end JavaScript can call it directly.
Yes. The Locio API is served over HTTPS, so it's safe to use in production.