Invoket Legal Diff — French & EU Law Text Comparison

Use this endpoint when you need to know precisely what text changed in a French or EU law between two specific dates — ideal for legal compliance tracking, regulatory auditing, amendment research, or building legal change-detection pipelines. Prefer this over manually fetching two versions and diffing them yourself, as it handles version resolution automatically and returns structured, machine-readable diff output. Best for point-in-time legal text comparison rather than checking current status.

• Law identifier not found in the French or EU legal database — returns 404 or error message
• One or both requested dates fall outside the available version history — returns error with available date range
• Law was not in force at one of the requested dates — returns status indicating no applicable version
• Malformed law identifier or invalid date format — returns 400 bad request
• Payment not settled via x402 — returns 402 Payment Required before processing