curl --request POST \
  --url https://app.yampi.ai/api/v1/accounts/{account_id}/contacts/filter \
  --header 'Content-Type: application/json' \
  --header 'api_access_token: <api-key>' \
  --data '
{
  "payload": [
    {
      "attribute_key": "name",
      "filter_operator": "equal_to",
      "values": [
        "en"
      ],
      "query_operator": "AND"
    },
    {
      "attribute_key": "country_code",
      "filter_operator": "equal_to",
      "values": [
        "us"
      ],
      "query_operator": null
    }
  ]
}
'

const options = {
  method: 'POST',
  headers: {api_access_token: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    payload: [
      {
        attribute_key: 'name',
        filter_operator: 'equal_to',
        values: ['en'],
        query_operator: 'AND'
      },
      {
        attribute_key: 'country_code',
        filter_operator: 'equal_to',
        values: ['us'],
        query_operator: null
      }
    ]
  })
};

fetch('https://app.yampi.ai/api/v1/accounts/{account_id}/contacts/filter', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://app.yampi.ai/api/v1/accounts/{account_id}/contacts/filter"

payload = { "payload": [
        {
            "attribute_key": "name",
            "filter_operator": "equal_to",
            "values": ["en"],
            "query_operator": "AND"
        },
        {
            "attribute_key": "country_code",
            "filter_operator": "equal_to",
            "values": ["us"],
            "query_operator": None
        }
    ] }
headers = {
    "api_access_token": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "meta": {
    "count": 123,
    "current_page": "<string>"
  },
  "payload": [
    {
      "additional_attributes": {
        "city": "<string>",
        "country": "<string>",
        "country_code": "<string>",
        "created_at_ip": "<string>"
      },
      "availability_status": "online",
      "email": "<string>",
      "id": 123,
      "name": "<string>",
      "phone_number": "<string>",
      "blocked": true,
      "identifier": "<string>",
      "thumbnail": "<string>",
      "custom_attributes": {},
      "last_activity_at": 123,
      "created_at": 123,
      "contact_inboxes": [
        {
          "source_id": "<string>",
          "inbox": {
            "id": 123,
            "avatar_url": "<string>",
            "channel_id": 123,
            "name": "<string>",
            "channel_type": "<string>",
            "provider": "<string>"
          }
        }
      ]
    }
  ]
}

{
  "description": "<string>",
  "errors": [
    {
      "field": "<string>",
      "message": "<string>",
      "code": "<string>"
    }
  ]
}