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IranTools Grapheme Count
x402
IranTools Grapheme Count is a paid API for AI agents from irantools.johnaio281.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-22).
Counts the number of grapheme clusters (visible characters) in a string, correctly handling Unicode including Persian/Arabic text
Price / call$0.003
Success—
StatusUnknown
How this service works
Persian and Iranian utilities for AI agents, plus general text/Unicode tooling. Jalali (Solar Hijri) calendar conversion, Iranian national ID / SHEBA / bank card / postal code / economic code validation, province and city lookup, official public holidays, Persian text normalization, keyword extraction, sentence splitting, similarity, HTML stripping, RTL fixing, Unicode homoglyph folding, script detection, NFC/NFD normalization, grapheme counting, date description, business-day counting, slugify, FNV-1a hashing, Shannon entropy, format and encoding detection, byte sizes. Pay per call in USDC on Base via x402 - no signup, no API key, no KYC. The same tools are also exposed as MCP tools at /mcp.
Output
Returns an object containing the grapheme cluster count of the input text — the number of user-perceived characters, correctly segmenting combining marks, zero-width joiners, emoji sequences, and multi-codepoint Persian/Arabic glyphs into single graphemes.
Example use cases
Validate Persian form field length
“Check how many visible characters are in this user-submitted Persian username 'علیرضا محمدی' — I need the true grapheme count to enforce my 20-character limit correctly.”
Measure tweet length for RTL content
“I'm building a Persian social media app — can you count the grapheme clusters in this string 'خوشآمدید به دنیای فارسی' so I know if it fits within a 50-character display limit?”
Debug Unicode string mismatch
“My code says this Arabic string 'مُحَمَّد' has 12 code points but I see only 6 visible letters on screen — can you count the actual grapheme clusters so I can figure out what's happening?”
Technical details
Endpoint
POSThttps://irantools.johnaio281.workers.dev/api/iran/grapheme_count?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the true visible character count of a Unicode string, especially for Persian, Arabic, or other scripts where a single glyph may span multiple code points or bytes. Prefer this over JavaScript's .length or Python's len() when working with combining characters, diacritics, or emoji, where those built-ins return code-unit or code-point counts rather than user-perceived character counts.
Side effects
- Missing required 'text' field returns a 400-level error
- Extremely large input strings may time out or exceed payload limits
- Non-string values for 'text' may return a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| textrequired | string |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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