manylives.me Text Diff

Choose this endpoint when you need a structured, machine-readable line-by-line diff with explicit operation labels and summary counts, especially within agentic workflows that need to process or display changes programmatically. Prefer it over shell-based diff tools when you need a JSON API response without spawning subprocesses, and over full patch/unified-diff formats when you need clean, enumerable line operations with counts rather than hunk headers.

• Input text exceeds 3,000 lines — request rejected or truncated
• Missing required field 'a' or 'b' — validation error returned
• Non-string input for text fields — schema validation failure
• Payment not included or insufficient — 402 Payment Required response
• Network timeout on very large inputs near the line limit