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ONE Engine Text Tail – Last 24 Unicode Characters (Tier 10)
x402
ONE Engine Text Tail – Last 24 Unicode Characters (Tier 10) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.007/call, status unknown (last checked 2026-10-16).
Extracts and returns the last 24 Unicode characters from a given text input, with Tier 10 richer diagnostic metadata included in the response.
Price / call$0.007
Success—
StatusUnknown
How this service works
Return last 24 Unicode characters. Tier 10/10 adds richer diagnostics.
Output
Returns the last 24 Unicode characters extracted from the submitted text, along with Tier 10 richer diagnostic information such as character counts, encoding details, and processing metadata to aid in debugging and validation.
Example use cases
Validate trailing content of log lines
“Take this server log entry and extract the last 24 Unicode characters from it so I can check what the tail of each line looks like: 'ERROR 2024-01-15T14:23:01Z service=auth msg=token_expired user=あいうえお'”
Debug Unicode string truncation
“I'm having a Unicode encoding issue — can you extract the last 24 characters from this string and show me the rich diagnostics so I can see exactly what's there: 'café résumé naïve 日本語 العربية'”
Inspect suffix of generated text
“My text pipeline is producing garbled endings — pull the last 24 Unicode characters from this output with full diagnostics: 'The final output was processed through the pipeline and resulted in: 終わり✓✓✓'”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v6/text-tail/chars-24/t10?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to extract precisely the last 24 Unicode characters from a string with accompanying diagnostic output. It is ideal when working with multilingual or emoji-heavy text where byte length differs from character count, and when you need the richer Tier 10 diagnostic metadata for debugging or validation purposes.
Side effects
- Input text shorter than 24 characters may return the full string or an error
- Empty string input may return an empty result or validation error
- Non-UTF-8 or malformed byte sequences may cause parsing errors
- Missing request body returns a 400 bad request
- Payment not included or invalid results in 402 Payment Required
Tags
x402
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