Temsor
Validates Turkish national ID, tax number, IBAN, phone, plate and parses addresses

Enter address data quickly with real-time address suggestions.
US Autocomplete API is a free Data Validation API that requires apiKey authentication, is served over HTTPS and supports CORS, so it can be called from the browser.
Address autocomplete | Use our Autocomplete API to suggest valid addresses in real time as users type. Uses a simple HTTP endpoint.
Details from smarty.com.

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Validates Turkish national ID, tax number, IBAN, phone, plate and parses addresses
Validate and standardize US addresses, with ZIP+4 and deliverability status
Parse freeform US addresses into structured fields (house number, street, unit, city, state, ZIP)
Validates email, phone, IBAN, EU VAT against VIES, and Canadian, Spanish and US national IDs
The US Autocomplete API is provided by Smarty (smarty.com). Address autocomplete | Use our Autocomplete API to suggest valid addresses in real time as users type. Uses a simple HTTP endpoint.
Yes. The US Autocomplete API is listed in the Data Validation 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 US Autocomplete API uses apiKey authentication, so you need to register for credentials before making requests.
Yes. The US Autocomplete API supports CORS, so front-end JavaScript can call it directly.
Yes. The US Autocomplete API is served over HTTPS, so it's safe to use in production.