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ONE Engine Deterministic Drop-Tail Unicode Characters (p=16, Tier 6)
x402
ONE Engine Deterministic Drop-Tail Unicode Characters (p=16, Tier 6) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0025/call, status unknown (last checked 2026-11-04).
Removes the last 16 Unicode characters from a text string, returning the trimmed result with Tier 6 diagnostic metadata.
Price / call$0.0025
Success—
StatusUnknown
How this service works
Deterministic text segmentation utility: Remove last Unicode characters; parameter=16. Tier 6/10 provides progressively richer diagnostics.
Output
Returns the input text with the last 16 Unicode characters removed, along with Tier 6 diagnostic metadata that provides progressively richer segmentation context such as character counts, offsets, and processing details about the truncation operation.
Example use cases
Trim trailing tokens from agent output
“I need to remove the last 16 characters from this agent-generated string before I pass it downstream: 'Processing complete: result_code_alpha_99'. Can you drop the tail and return what's left?”
Clean up padded log entries
“My log lines all have 16 trailing Unicode padding characters appended automatically — can you strip those tail characters off this entry: 'ERROR 2024-01-15 connection timeout [PADDING]' so I get the clean message?”
Normalize fixed-width text fields
“I'm working with fixed-width text fields where the last 16 chars are always filler. Strip those trailing characters from this value: 'CustomerRecord_ID_7842__________' and give me the core content.”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v9/text-segment/drop-tail-chars/p6/t6?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need deterministic, Unicode-safe removal of exactly 16 characters from the tail of a string and want Tier 6 diagnostic output for debugging or auditing. Prefer it over generic string slicing when you need reproducible, pay-per-call utility behavior in an autonomous agent pipeline using x402 payments on Base.
Side effects
- Input text shorter than 16 characters may return an empty string or an error
- Missing or malformed request body returns a 400 error
- Payment not included or insufficient USDC results in a 402 Payment Required response
- Non-UTF-8 encoded input may produce unexpected Unicode boundary results
- Network timeout on the workers.dev edge may return a 5xx error
Tags
x402
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