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Text Diff
x402
Text Diff is a paid API for AI agents from bess-x402.onrender.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-30).
Compares two texts line by line, returning a unified diff, added/removed/changed lines, and line and character similarity metrics.
Price / call$0.002
Success—
StatusUnknown
How this service works
Compare two texts line by line: unified diff, list of added, removed and changed lines, line and character similarity, optionally ignoring whitespace and case. Use to compare documents, configs or model outputs.
Output
Returns a unified diff string, separate lists of added, removed, and changed lines, plus a line-level similarity score and a character-level similarity score between the two texts.
Example use cases
Config file change review
“I have two versions of my nginx.conf — the old one and the new one. Can you compare them line by line, ignore whitespace, and show me a unified diff with 3 lines of context so I can see exactly what changed?”
Model output comparison
“Compare these two LLM responses to the same prompt and tell me which lines differ, which were added or removed, and how similar they are overall — I want to see the line-by-line breakdown.”
Document revision audit
“I need to audit the changes between the original contract draft and the revised version. Can you diff them and list every line that was added, removed, or modified, treating case as significant?”
Technical details
Endpoint
GEThttps://bess-x402.onrender.com/v1/util/diff?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a structured, machine-readable diff of two text strings with quantified similarity scores, especially when you also want to isolate added, removed, and changed lines separately rather than just a raw patch. Ideal for comparing configs, documents, or model outputs programmatically inside an agent pipeline.
Side effects
- Missing required parameters 'a' or 'b' returns an error
- Very large texts may exceed query string limits
- context parameter outside 0-20 range may be rejected
- Non-text binary content passed as strings will produce unpredictable diffs
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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