Batch convert

Convert several currency amounts in one request. A batch uses one daily batch call and is limited by your plan’s item cap.

POST

/api/convert/batch

batch ability

{
  "items": [
    {"from": "EUR", "amount": 100, "to": "ZAR"},
    {"from": "USD", "amount": 50, "to": "GBP", "as_of": "2026-07-10"}
  ]
}

A structurally valid request returns HTTP 200 and one ordered result per item. Individual validation or conversion failures include a stable error code without cancelling successful items. Invalid envelopes and requests above the plan cap return HTTP 422.