Developer Center

Free Unicode API and developer resources. No authentication required.

Base URL

https://unicodefyi.com

Usage Notes

✓ Free to use — no API key or authentication required
✓ CORS enabled — call directly from the browser
✓ JSON and Markdown response formats
✓ Rate limiting applies — please be respectful

API Endpoints

GET

/api/search/

Universal search across characters, glossary terms, guides, collections, and series chapters. Returns up to 15 results.

Parameters

Name	Type	Description
q	string	Search query (min 2 characters)

Example

curl https://unicodefyi.com/api/search/?q=arrow

Example response

{
  "results": [
    {
      "title": "RIGHTWARDS ARROW",
      "subtitle": "U+2192 — Arrows",
      "url": "/char/U+2192/",
      "icon": "\u2192",
      "type": "Character"
    },
    {
      "title": "Arrow Symbols",
      "subtitle": "Collections",
      "url": "/collection/arrows/",
      "icon": "\ud83d\udce6",
      "type": "Collection"
    }
  ]
}

GET

/char/U+{hex}.md

Get character information in plain Markdown. Includes name, codepoint, category, block, script, and encoding table.

Parameters

Name	Type	Description
hex	string	Hex codepoint without U+ prefix (e.g., 2713, 1F600)

Example

curl https://unicodefyi.com/char/U+2713.md

GET

/glossary/{slug}.md

Get glossary term definition in plain Markdown. Includes category, definition, enriched content, and related terms.

Parameters

Name	Type	Description
slug	string	Term slug (e.g., utf-8, codepoint, bom)

Example

curl https://unicodefyi.com/glossary/utf-8.md

Developer Resources

/api/openapi.json

/feed/rss/

/feed/atom/

/sitemap.xml

AI-friendly site summary

🤖 llms-full.txt

Full site content for AI crawlers

🤖 robots.txt

Crawler access rules

🔒 security.txt

Security contact (RFC 9116)

Content Overview

Content Type	Count	Endpoint
Characters	~154,998	/char/U+{hex}/
Collections	88	/collection/{slug}/
Unicode Blocks	118	/block/{slug}/
Scripts	52	/script/{slug}/
Guides	150	/guide/{slug}/
Glossary Terms	123	/glossary/{slug}/
Signature Series	5 series, 44 chapters	/series/{slug}/{chapter}/
Comparisons	30	/compare/{slug}/
Tools	4	/tool/{slug}/

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