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NATO/ICAO Phonetic Alphabet Speller
x402
NATO/ICAO Phonetic Alphabet Speller is a paid API for AI agents from nato.openverbs.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Converts a text string (letters, digits, spaces) into its NATO/ICAO phonetic alphabet equivalents (e.g. A→Alfa, B→Bravo, 0→Zero, space→Space)
Price / call$0.002
Success—
StatusUnknown
How this service works
Spell text using the NATO/ICAO phonetic alphabet (A→Alfa, B→Bravo, …), including digits and spaces (→Space). Characters with no phonetic spelling are clean 400s.
Output
A sequence of NATO/ICAO phonetic words corresponding to each character in the input — letters map to words like Alfa, Bravo, Charlie; digits map to Zero through Niner; spaces map to Space. Characters outside the supported set result in a clean 400 error.
Example use cases
Phonetic spelling for radio operators
“Spell out the tail number 'N452XR' using the NATO phonetic alphabet so I can relay it to air traffic control.”
Clarifying serial number over phone
“I need to read this serial number 'SN 8B21Z' to a customer support agent over the phone — can you convert it to NATO phonetics so there's no confusion?”
Spelling a name for military dispatch
“Spell my last name 'Kovacs' using the NATO phonetic alphabet the way they do in military communications.”
Technical details
Endpoint
POSThttps://nato.openverbs.com/v1/spellWhen to prefer
Use this endpoint when you need to convert alphanumeric text into NATO/ICAO phonetic words for clear verbal communication over radio, phone, or noisy channels. Prefer it over manual lookup tables when the input contains mixed letters, digits, and spaces. It handles the full NATO standard including digits (Zero–Niner) and spaces, making it suitable for serial numbers, license plates, callsigns, and names.
Side effects
- Input contains unsupported characters (e.g. punctuation, accented letters) — returns HTTP 400
- Empty string input — rejected by schema (minLength:1)
- Input is missing the required 'text' field — returns 400 validation error
- Network timeout or service unavailability — connection error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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