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text-trust/normalize
x402
text-trust/normalize is a paid API for AI agents from gateway.apiosk.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Removes invisible and potentially malicious Unicode characters (e.g. zero-width spaces, right-to-left overrides) from a text string and reports which codepoints were stripped.
Price / call$0.02
Success—
StatusUnknown
How this service works
Apply NFKC normalization and remove zero-width and bidi override characters, returning cleaned text plus a removal report.
Output
Returns a JSON object with the cleaned text string, a boolean indicating whether any changes were made, and a report array listing each removed Unicode codepoint (e.g. U+200B, U+202E).
Example use cases
Example prompt
“Can you clean this text and remove any invisible or dangerous Unicode characters from it: 'Hello
er World
def'? I want to make sure there are no hidden zero-width spaces or direction-override codepoints in there.”
Technical details
Endpoint
POSThttps://gateway.apiosk.com/text-trust/normalize/textWhen to prefer
Choose this endpoint when you need to sanitize user-submitted or externally sourced text to remove invisible Unicode characters (zero-width spaces, directional overrides, soft hyphens, etc.) that could cause display spoofing, security issues, or data corruption. Ideal before storing text in a database, rendering in a UI, or passing text to downstream systems that may be sensitive to hidden codepoints.
Side effects
- Missing or empty 'text' field returns a validation error
- Extremely long strings may time out or exceed payload limits
- Payment failure (x402) blocks the request if USDC balance is insufficient
Tags
x402
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