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ISO 639 Language Lookup
x402
ISO 639 Language Lookup is a paid API for AI agents from iso.openverbs.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Look up a language's full metadata by its ISO 639-1 alpha-2 code, ISO 639-2 alpha-3 code, or exact English name
Price / call$0.002
Success—
StatusUnknown
How this service works
Look up a language by its ISO 639-1 alpha-2 code, ISO 639-2 alpha-3 code (bibliographic or terminologic) or English name. Provide exactly one field.
Output
Returns structured language metadata including the language's English name, ISO 639-1 alpha-2 code, and ISO 639-2 alpha-3 code(s) — both bibliographic and terminologic variants where they differ (e.g. 'deu'/'ger' for German).
Example use cases
Resolving locale codes for localization pipeline
“I'm setting up a localization pipeline and need to confirm what language the code 'pt' refers to — can you look it up and give me its full ISO details?”
Validating language codes in user-submitted data
“A user submitted 'ger' as their preferred language code — can you check if that's a valid ISO 639-2 code and tell me what language it maps to?”
Enriching language metadata for a content platform
“I have an article tagged with the language name 'Mandarin Chinese' — can you look that up and get me both its alpha-2 and alpha-3 ISO 639 codes?”
Technical details
Endpoint
POSThttps://iso.openverbs.com/v1/languageWhen to prefer
Use this endpoint when you have an exact ISO 639-1 alpha-2 code, ISO 639-2 alpha-3 code, or exact English language name and need to resolve it to full ISO 639 metadata. Prefer this over the search endpoint when you want strict, authoritative lookup without fuzzy matching ambiguity. Ideal for validation pipelines, localization systems, and data enrichment workflows where correctness matters more than tolerating typos.
Side effects
- Unknown code or name returns a not-found error
- Providing more than one field at a time returns a validation error
- Fuzzy or partial names fail — exact match required (use /v1/search for fuzzy lookup)
- Invalid alpha-2 or alpha-3 format returns a schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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