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ONE Engine Unicode Character Counter (Tier 3)
x402
ONE Engine Unicode Character Counter (Tier 3) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0008/call, status unknown (last checked 2026-10-13).
Counts Unicode characters in submitted text with Tier 3 progressively richer diagnostics, going beyond basic counts to include additional analysis metrics.
Price / call$0.0008
Success—
StatusUnknown
How this service works
Text measurement and analysis utility: Count Unicode characters. Tier 3/10 adds progressively richer diagnostics.
Output
Returns the Unicode character count of the submitted text along with Tier 3 progressive diagnostics — richer than basic counts, including additional statistical breakdowns and analysis metrics about the character composition and text length.
Example use cases
Multilingual form field validation
“I need to check how many Unicode characters are in this user-submitted bio before saving it — it contains Arabic and emoji mixed with English: 'مرحبا! I love coding 🚀💡'. Can you count the characters and give me the full breakdown?”
Tweet length checker for Unicode content
“Before I post this tweet, can you measure exactly how many Unicode characters it has? Here's the text: 'Exploring 東京 this summer ✈️🗾 — so excited to see 富士山!'”
CJK text measurement for localization
“I'm building a localization tool and need precise Unicode character counts with diagnostics for this Chinese paragraph: '人工智能正在改变世界，每天都有新的突破和发现。' How many characters is that?”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v5/text-metric/characters/t3?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need more than a raw character count — specifically when Tier 3 diagnostic depth is required, such as when building text validation pipelines, localization tools, or analytics that need richer Unicode-aware metrics. Prefer over a basic character counter when your use case involves multilingual, emoji-heavy, or CJK text where byte length and character count diverge significantly.
Side effects
- Empty or missing text body returns error
- Extremely large payloads may be rejected or timeout
- Payment failure via x402 protocol returns 402 status
- Malformed request body returns 400 error
- Network timeout on workers.dev edge node
Tags
x402
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