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Sindri Text Diff (Myers Algorithm)
x402
Sindri Text Diff (Myers Algorithm) is a paid API for AI agents from x402.outpimp.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Computes a line-based diff between two text strings using the Myers diff algorithm, returning a structured list of equal, add, and remove operations.
Price / call$0.01
Success—
StatusUnknown
How this service works
Line-based diff between two strings using the Myers diff algorithm (via the diff/jsdiff library), returning a list of equal/add/remove operations.
Output
A structured list of diff operations, each indicating whether a segment of text is unchanged ('equal'), newly added ('add'), or removed ('remove'), covering all lines between the two input strings.
Example use cases
Code review change detection
“I have two versions of a Python script — the original and the edited one. Can you run a line-by-line diff and show me exactly which lines were added or removed?”
Document revision tracking
“Compare these two drafts of my cover letter and tell me what lines changed, what was added, and what was deleted between version 1 and version 2.”
Config file audit
“I need to audit what changed between our old nginx.conf and the new one deployed yesterday — can you diff them line by line and list every addition and removal?”
Technical details
Endpoint
POSThttps://x402.outpimp.com/diffTextWhen to prefer
Use this endpoint when you need a deterministic, line-level diff between two text strings using the well-established Myers algorithm, especially when you want structured add/equal/remove operations rather than a raw patch format. It is ideal for comparing config files, code snippets, document revisions, or any line-oriented text up to 50,000 characters. Prefer this over regex-based or word-level comparisons when line-granularity is important.
Side effects
- Input text exceeds 50,000 characters or 2,000 lines — request rejected with size limit error
- Missing textA or textB fields in request body — validation error returned
- Empty strings provided — returns a single 'equal' operation with empty value
- Network or payment failure — HTTP 402 or 5xx error with no diff result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| textA | string | Original text. Max 50,000 characters and 2,000 lines. |
| textB | string | Modified text. Max 50,000 characters and 2,000 lines. |
Tags
x402
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