NATO Phonetic Alphabet API
NATO phonetic alphabet conversion as an API, computed locally and deterministically. The spell endpoint turns any text into the international radiotelephony spelling alphabet used by aviation, the military, emergency services and call centres — letters become Alfa, Bravo, Charlie and so on (case-insensitive), digits use the ICAO forms (Niner for nine), spaces are marked, and unknown characters pass through — so SOS becomes “Sierra Oscar Sierra” and ABC123 becomes “Alfa Bravo Charlie One Two Three”. The decode endpoint reverses it, turning a string of phonetic words back into the original characters and accepting common spelling variants (Alpha or Alfa, X-ray or Xray, Juliet or Juliett, Nine or Niner), flagging any words it does not recognise. Everything is computed locally and deterministically, so it is instant and private. Ideal for aviation, radio, telecom, call-centre, customer-support, accessibility and voice app developers, spelling-out and read-back tools, and IVR systems. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 2 endpoints. This is the NATO/ICAO spelling alphabet; for Morse code use a Morse API.
api.oanor.com/phonetic-api
