Returns inflation data for up to 50 countries in a single request. Results are in the same order as the input. Countries with no data return found: false instead of failing the whole request. Billing: 1 credit per country (not per HTTP request).
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---
name: inflation-post-batch
api: Inflation
method: POST
path: /v1/finance/inflation/batch
base_url: https://requiems.xyz
description: Returns inflation data for up to 50 countries in a single request. Results are in the same order as the input. Countries with no data return found: false instead of failing the whole request. Billing: 1 credit per country (not per HTTP request).
---
## Endpoint
**POST https://requiems.xyz/v1/finance/inflation/batch**
## Batch Inflation Rates
Returns inflation data for up to 50 countries in a single request. Results are in the same order as the input. Countries with no data return found: false instead of failing the whole request. Billing: 1 credit per country (not per HTTP request).
## Parameters
| Name | Type | Required | Location | Description |
| ---- | ---- | -------- | -------- | ----------- |
| `countries` | array<string> | yes | body | Array of ISO 3166-1 alpha-2 country codes. Min: 1, Max: 50. |
## Response Example
```json
{
"data": {
"results": [
{
"country": "US",
"found": true,
"rate": 2.9495,
"period": "2024",
"historical": [
{ "period": "2023", "rate": 4.1163 }
]
},
{
"country": "AR",
"found": true,
"rate": 211.4,
"period": "2024",
"historical": []
},
{
"country": "XX",
"found": false
}
],
"total": 3
},
"metadata": {
"timestamp": "2026-01-01T00:00:00Z"
}
}
```
## Response Fields
| Field | Type | Description |
| ----- | ---- | ----------- |
| `results` | array<object> | One entry per country, in the same order as the input array |
| `results[].country` | string | ISO 3166-1 alpha-2 country code, uppercased |
| `results[].found` | boolean | false when the country has no data in the World Bank set |
| `results[].rate` | number | Latest CPI inflation rate. Omitted when found: false |
| `results[].period` | string | Year of the latest data point. Omitted when found: false |
| `results[].historical` | array<object> | Up to 10 previous years. Omitted when found: false |
| `total` | integer | Total number of results returned (equals number of countries sent) |
## Errors
- `422` **validation_failed** — Body is invalid: empty array, more than 50 items, or a bad country code.
- `500` **internal_error** — Unexpected server error.
