Authentication

This API version is deprecated and will no longer be supported after December 1, 2025. Refer to API v3 for updated descriptions.

Obtain token

Request

POST [base]/token

Name	Type	Required	Description
login	string	Yes	Your API key.
password	string	Yes	Your API secret.

Request example

cURL

curl --request POST \
--url [base]/token/ \
--header 'Content-Type: application/vnd.api+json' \
--data '{
  "data": {
    "type": "auth-token",
    "attributes": {
      "login": "<Your API key>",
      "password": "<Your secret>"
    }
  }
}'

Python

PHP

Response

Name	Type	Description
access	string	Your access token. It has an expiry time of about a minute and after expiration should be refreshed.
refresh	string	The long-living token that is used for obtaining new access tokens (refer to Refresh token).
access_expired_at	string	The date and time of access token expiration.
refresh_expired_at	string	The date and time of refresh token expiration.
is_2fa_confirmed	boolean	If true, 2FA is enabled. 2FA is unavailable for API users.
time	string	The date and time of request receiving.
sign	string	The HMAC signature for a response payload authentication. To verify that the refresh token was sent by Coinsbuy, generate an HMAC signature using the sha256 as algorithm: sha256 hash of the concatenation of your login and password as a key, and the concatenation of meta.time and refresh fields as a message. Refer to Auth verification below for a sign verification example.

Response example

{
  "data": {
    "type": "auth-token",
    "id": "0",
    "attributes": {
      "refresh": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9...",
      "access": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9...",
      "access_expired_at": "2020-12-29T05:42:11.925654Z",
      "refresh_expired_at": "2020-12-29T11:27:11.925654Z",
      "is_2fa_confirmed": false
    }
  },
  "meta": {
    "time": "2020-12-29T05:27:11.925654Z",
    "sign": "bcd6519ce27fed2ce9efe49cd09b387f050c0122c96..."
  }
}

Response codes

HTTP code	Application code	Description	Suggested action
200	—	OK	—
400	2006: No active account found with the given credentials	Incorrect credentials	Send correct credentials.
429	throttled: Request was throttled	Too many requests	Try again later.
500	—	Internal server error	Try again later.
502	—	Bad gateway	Try again later.
503	—	Service unavailable	Try again later.
504	—	Gateway timeout	Try again later.
5xx	—	Other server errors	Try again later.

---

Refresh token

Once you receive a new key pair using your refresh token, the previous refresh token can no longer be used. A refresh token that is found to be invalid while not being expired must be rendered suspicious.

Request

POST [base]/token/refresh/

Name	Type	Required	Description
refresh	string	Yes	Your refresh token from the Obtain token response.

Request example

cURL

curl --request POST \
--url [base]/token/refresh/ \
--header 'Content-Type: application/vnd.api+json' \
--data '{
  "data": {
    "type": "auth-token",
    "attributes": {
      "refresh": "<Your refresh token>"
    }
  }
}'

Python

PHP

Response

The response body is the same as for Obtain token request, but without meta fields.

Response body example

{
  "type": "auth-token",
  "id": "0",
  "attributes": {
    "refresh": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9...",
    "access": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9...",
    "access_expired_at": "2020-12-29T05:42:11.925654Z",
    "refresh_expired_at": "2020-12-29T11:27:11.925654Z",
    "is_2fa_confirmed": false
  }
}

Response codes

HTTP code	Application code	Description	Suggested action
200	—	OK	—
401	2007: No active account found with the given credentials	Incorrect credentials	Send correct credentials.
500	—	Internal server error	Try again later.
502	—	Bad gateway	Try again later.
503	—	Service unavailable	Try again later.
504	—	Gateway timeout	Try again later.
5xx	—	Other server errors	Try again later.

---

Auth verification

Refer to the example below for a sign verification instance.

Auth verification example

// "crypto-js": "4.0.0" is installed as a dependency
const SHA256 = require("crypto-js/sha256");
const hmacSHA256 = require('crypto-js/hmac-sha256');

// set API user login and password
const login = 'Your API key';
const password = 'Your API secret';

// parse /api/token/ response payload
const authResponse = JSON.parse("{\n" +
    "  \"data\": {\n" +
    "    \"type\": \"auth-token\",\n" +
    "    \"id\": \"0\",\n" +
    "    \"attributes\": {\n" +
    "      \"refresh\": \"eyJ0eXAiOiJKV1QiLCJhbGciOiJIUz\",\n" +
    "      \"access\": \"eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI\",\n" +
    "      \"access_expired_at\": \"2020-08-24T13:50:12.192479+03:00\",\n" +
    "      \"refresh_expired_at\": \"2020-08-24T19:33:33.192479+03:00\",\n" +
    "      \"is_2fa_confirmed\": false\n" +
    "    }\n" +
    "  },\n" +
    "  \"meta\": {\n" +
    "    \"time\": \"2020-08-24T10:33:33.192479Z\",\n" +
    "    \"sign\": \"e70adec551e26b560049e42aa0993ae42cac4e03fbbb300320d8be\"\n" +
    "  }\n" +
    "}");
    
// prepare data for hash check
const message = authResponse['meta']['time'] + authResponse['data']['attributes']['refresh'];
const responseSign = authResponse['meta']['sign'];
const secret = SHA256(login + password);
const calculatedSign = hmacSHA256(message, secret).toString();

// print result
if (responseSign === calculatedSign) {
  console.log('Verified');
} else {
  console.log('Invalid sign');
}