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Citation Locator Conversion
x402
Citation Locator Conversion is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.024/call, status unknown (last checked 2026-10-24).
Converts text span offsets between UTF-8 byte positions, UTF-16 code-unit positions, and Unicode code-point positions, rejecting invalid mid-codepoint offsets.
Price / call$0.024
Success—
StatusUnknown
How this service works
Convert half-open UTF-8 byte, UTF-16 code-unit, or Unicode code-point spans into all three units for supplied text. Reject offsets inside a code point. No PDF parsing, page inference, or external source lookup.
Output
Returns a result object containing converted offset spans in all three encoding formats (UTF-8 bytes, UTF-16 code units, Unicode code points) for each input locator, a boundaries array, an inputDigest, a receiptDigest, an offerId, a version, and an amountBaseUnits field. Invalid offsets that fall inside a code point are rejected with an error.
Example use cases
NLP pipeline offset normalization
“My NLP model returns character spans as UTF-16 code-unit offsets, but my database stores UTF-8 byte positions. Can you convert these spans for the text 'Hello, 世界!' into all three offset formats so I can store them consistently? Data class is public.”
Citation validation in multilingual documents
“I need to verify that these citation locators I extracted from a multilingual document are valid — they shouldn't land in the middle of a code point. Please convert these UTF-8 byte spans for the source text into Unicode code-point and UTF-16 positions and flag any that are invalid. Mark the data as public.”
Cross-platform text annotation sync
“We have annotations stored as Unicode code-point spans but our front-end editor uses UTF-16. Can you convert these locator spans for this text into all three encoding formats so we can sync across both systems? Use synthetic data class since this is test data.”
Technical details
Endpoint
POSThttps://www.mahastrategies.com/api/v1/micro/citation-locator-conversion?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to accurately convert text span offsets between UTF-8 byte positions, UTF-16 code-unit positions, and Unicode code-point positions, especially for multilingual or emoji-containing text where encoding boundaries differ. It is ideal for citation tracking, NLP annotation pipelines, and cross-platform text editor synchronization where encoding mismatches cause bugs. It does not do PDF parsing, page inference, or any external lookups — it is a pure, deterministic conversion utility.
Side effects
- Offset falls inside a multi-byte code point — endpoint rejects the locator with an error
- Input text is not valid UTF-8 — parsing fails
- Locator array exceeds 64 items — request rejected
- Sources array exceeds 16 items — request rejected
- Invalid dataClass value — request rejected with schema validation error
- Malformed body or missing required fields — 400-level error returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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