{"service":"Wise Currency API Wrapper","version":"1.0.0","endpoints":["GET /rates - Get current or historical exchange rates","GET/POST /convert - Convert amounts between currencies","GET /health - Health check"],"cache":"Current rates cached for 2 hours","documentation":{"rates":{"method":"GET","path":"/rates","parameters":{"source":"Source currency code (e.g., USD)","target":"Target currency code (e.g., EUR)","time":"Historical timestamp (ISO format)","from":"Period start date/time for history","to":"Period end date/time for history","group":"Interval: day, hour, minute"},"examples":["/rates","/rates?source=USD&target=EUR","/rates?source=GBP&target=USD&time=2019-02-13T14:53:01"]},"convert":{"methods":["GET","POST"],"path":"/convert","parameters":{"from":"Source currency","to":"Target currency","amount":"Amount to convert"},"examples":["/convert?from=USD&to=EUR&amount=100","POST /convert with JSON: {\"from\": \"USD\", \"to\": \"EUR\", \"amount\": 100}"]}}}