# Correlation between pairs

URL: https://docs.fxapis.com/api-reference/marketlabs/correlation-between-pairs

> Correlation between pairs.

`GET https://api.fxapis.com/v1/marketlabs/correlation`

Authentication: `Authorization: Bearer <API key>`.

#### Responses

- `200`
- `400`
- `401`
- `402`
- `403`
- `404`
- `409`
- `503`

Failures return `{ "error": { "code", "message" } }`; every code is listed at https://docs.fxapis.com/errors.

#### 200 response fields

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `data` | object | yes |  |
| `data.symbols` | string[] | yes |  |
| `data.window` | integer | yes |  |
| `data.matrix` | number[][] | yes | Correlation matrix, symbols[i] by symbols[j]. |
| `data.basis` | string | yes |  |
| `requestId` | string | yes |  |