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text-diff
x402
text-diff is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Computes a line-level diff between two texts, returning added/removed/kept lines in unified-style format along with a similarity ratio and line counts.
Price / call$0.01
Success—
StatusUnknown
How this service works
Line-level text diff: which lines were added, removed or kept between two texts, with a unified-style listing, similarity ratio and counts. Compare document versions or agent outputs. $0.01 per call.
Output
Returns a unified-style diff listing showing which lines were added (prefixed with +), removed (prefixed with -), or kept unchanged, along with a floating-point similarity ratio (0.0–1.0) and counts of added, removed, and unchanged lines.
Example use cases
Comparing document revision drafts
“I have two drafts of our policy document — the original and the revised version. Can you diff them line by line and show me exactly what lines were added or removed, plus how similar they are overall?”
Auditing AI agent output changes
“My agent generated a response yesterday and a different one today for the same prompt. Can you compare them line by line and tell me what changed between the two outputs?”
Reviewing config file edits
“Here are two versions of our nginx config — before and after the engineer's changes. Show me a unified-style diff of what lines were added or deleted and give me the similarity ratio.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/data/diffWhen to prefer
Choose this endpoint when you need a fast, lightweight line-level text diff with similarity scoring without setting up a local diffing library. Ideal for agents that need to compare document versions, audit LLM output changes, or verify configuration edits programmatically at low cost ($0.01/call).
Side effects
- Missing or empty input texts returns a validation error
- Extremely large texts may exceed request size limits
- Non-text or binary content may produce garbled diff output
- Network timeout for unusually long processing requests
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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