Research & Grey LiteratureDatasetNewAdded 2026-11-13

Unicode CLDR JSON locale data

Locale data for hundreds of locales, released with each CLDR version

Freeauth: noneUnicode-3.0✓ verified Nov 13, 2026

Free?: FreeFree JSON files.
Sign-up?: None neededCall it straight away
Commercial use?: Read the termsProvider's own terms, not a standard licence

The fine print

License note: Unicode License v3 per the repository licence file. Signal Lab links only. Agent note: GitHub's Terms of Service (section D.9, Access Reciprocity) say "By using automated means to access, collect, or otherwise use (“Access”) any publicly accessible Content from the Service for the purpose of developing or training any commercially available artificial intelligence model, machine learning system, or similar technology (a "Commercial AI System"), you hereby waive any and all policies, terms, conditions, or contractual provisions governing products, services, websites or datasets you own or operate that would otherwise prohibit, restrict, or place conditions upon GitHub's Access to any publicly accessible data, information or content associated with your products or services, including for the purpose of developing or training any Commercial AI System."
Required attribution: Keep the Unicode copyright and permission notice with copies.

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// Overview

Unicode CLDR JSON locale data

The Unicode Consortium publishes the official JSON distribution of the Common Locale Data Repository (CLDR): locale names, number, date and currency formats, plural rules and territory data for software internationalization.

Coverage

Locale data for hundreds of locales, released with each CLDR version.

Good for

#research-grey-literature#unicode#locales#internationalization#files

Verdict

Locale reference data for internationalization, alongside unicode-character-database. Licence: Unicode-3.0: the repository licence file is titled "UNICODE LICENSE V3". The files are hosted on GitHub, whose Terms of Service say "these Terms do not restrict lawful access to or use of the contents of public repositories by third parties"; the Acceptable Use Policies limit excessive automated bulk activity, not ordinary reading of public files. GitHub's Access Reciprocity clause applies to automated collection for training a commercial AI system (see the licence note). Rate limits: Not stated. Signal Lab links only.

// Limits

Free limits & license

Price	Free
Auth	none
Free tier	Free JSON files.
Rate limit	Not stated.
License	Unicode-3.0
License note	Unicode License v3 per the repository licence file. Signal Lab links only. Agent note: GitHub's Terms of Service (section D.9, Access Reciprocity) say "By using automated means to access, collect, or otherwise use (“Access”) any publicly accessible Content from the Service for the purpose of developing or training any commercially available artificial intelligence model, machine learning system, or similar technology (a "Commercial AI System"), you hereby waive any and all policies, terms, conditions, or contractual provisions governing products, services, websites or datasets you own or operate that would otherwise prohibit, restrict, or place conditions upon GitHub's Access to any publicly accessible data, information or content associated with your products or services, including for the purpose of developing or training any Commercial AI System."
Last verified	Nov 13, 2026

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Quick facts

Provider: github.com
Type: Dataset
Category: Research & Grey Literature
Domain: Research & Grey Literature
Auth: none
Free tier: Free JSON files.
Rate limit: Not stated.
License: Unicode-3.0
License note: Unicode License v3 per the repository licence file. Signal Lab links only. Agent note: GitHub's Terms of Service (section D.9, Access Reciprocity) say "By using automated means to access, collect, or otherwise use (“Access”) any publicly accessible Content from the Service for the purpose of developing or training any commercially available artificial intelligence model, machine learning system, or similar technology (a "Commercial AI System"), you hereby waive any and all policies, terms, conditions, or contractual provisions governing products, services, websites or datasets you own or operate that would otherwise prohibit, restrict, or place conditions upon GitHub's Access to any publicly accessible data, information or content associated with your products or services, including for the purpose of developing or training any Commercial AI System."
Verified: Nov 13, 2026

Ask your agent

Fetch https://signal-lab.qdt.ai/catalog.json, find slug "unicode-cldr-json" and read its licenseNote. The files are Unicode-3.0 and hosted on GitHub, whose terms do not restrict lawful access to public repository contents. GitHub's Terms of Service section D.9 (Access Reciprocity) say: "By using automated means to access, collect, or otherwise use (“Access”) any publicly accessible Content from the Service for the purpose of developing or training any commercially available artificial intelligence model, machine learning system, or similar technology (a "Commercial AI System"), you hereby waive any and all policies, terms, conditions, or contractual provisions governing products, services, websites or datasets you own or operate that would otherwise prohibit, restrict, or place conditions upon GitHub's Access to any publicly accessible data, information or content associated with your products or services, including for the purpose of developing or training any Commercial AI System." So if I use these files with automated means to develop or train a commercial AI system, tell me that clause applies. Otherwise, write code that downloads the CLDR JSON file I name (for example https://raw.githubusercontent.com/unicode-org/cldr-json/main/cldr-json/cldr-core/availableLocales.json) when I run it, keep request volume modest, and keep the licence notice with any copies.

// Full record · catalog.json

name: Unicode CLDR JSON locale data
slug: unicode-cldr-json
category: Research & Grey Literature
domain: Research & Grey Literature
type: Dataset
sitePageUrl: https://signal-lab.qdt.ai/datasets/unicode-cldr-json
providerUrl: https://github.com/unicode-org/cldr-json
badge: Free
auth: none
freeTierLimits: Free JSON files.
rateLimits: Not stated.
docsUrl: https://github.com/unicode-org/cldr-json
coverage: Locale data for hundreds of locales, released with each CLDR version.
lastVerified: 2026-11-13
evidenceUrls: https://github.com/unicode-org/cldr-json
https://raw.githubusercontent.com/unicode-org/cldr-json/main/cldr-json/cldr-core/availableLocales.json
https://github.com/unicode-org/cldr-json/blob/main/LICENSE
https://docs.github.com/en/site-policy/github-terms/github-terms-of-service
https://docs.github.com/en/site-policy/acceptable-use-policies/github-acceptable-use-policies
tasks: research-grey-literature
unicode
locales
internationalization
files
license: Unicode-3.0
licenseUrl: https://github.com/unicode-org/cldr-json/blob/main/LICENSE
licenseNote: Unicode License v3 per the repository licence file. Signal Lab links only. Agent note: GitHub's Terms of Service (section D.9, Access Reciprocity) say "By using automated means to access, collect, or otherwise use (“Access”) any publicly accessible Content from the Service for the purpose of developing or training any commercially available artificial intelligence model, machine learning system, or similar technology (a "Commercial AI System"), you hereby waive any and all policies, terms, conditions, or contractual provisions governing products, services, websites or datasets you own or operate that would otherwise prohibit, restrict, or place conditions upon GitHub's Access to any publicly accessible data, information or content associated with your products or services, including for the purpose of developing or training any Commercial AI System."
attribution: Keep the Unicode copyright and permission notice with copies.

// The same record over MCP

Request · get_entry

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_entry",
    "arguments": {
      "slug": "unicode-cldr-json"
    }
  }
}

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// Similar sources

Unicode CLDR JSON locale data

Coverage

Good for

Verdict

Free limits & license

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// Full record · catalog.json

// The same record over MCP

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