CryptoExpert User API
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User API

Programmatic access to your account: orders, payment details, verification, balance, referrals, 2FA. Enable the key in your profile.

Your API key

The key is stored only in this browser. Enable API in your account, copy the key — examples below will use it.

Open account

Quick start

All User API methods are POST. Send the secret key in the X-Authorization header. Request body is application/x-www-form-urlencoded.

  • Open Account → API Settings and enable API.
  • Copy the key (profile button or the field above).
  • Call any method below — the key is injected into the curl sample.
Keep the key on your server. Do not embed it in public frontend code.

Authorization & base URL

Your exchanger base URL: https://en.thecrypto.expert

Item Value
Method POST
Header X-Authorization: YOUR_API_KEY
Content-Type application/x-www-form-urlencoded
Response language language parameter (ru / en / uk)
Example 
curl -X POST 'https://en.thecrypto.expert/user-api-get-info' \
  --header 'X-Authorization: {{API_KEY}}' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'language=en'

Response format

Success

JSON 
{
  "success": true,
  "result": ["data"]
}

Error

JSON 
{
  "success": false,
  "message": "Optional error message.",
  "result": false
}

List pagination

Lists support page and limit. The response may include pagination: [total objects, current position].

Order statuses

The status filter accepts a numeric ID or a name with @, e.g. status=@completed.

# Name Description
0 @created Created
1 @paid Paid
2 @suspended Suspended
3 @canceled Canceled
4 @completed Completed
POST /user-api-get-info

User information

Returns a user object. Password hashes and confirmation tokens are hidden.

Example 
curl -X POST 'https://en.thecrypto.expert/user-api-get-info' \
  --header 'X-Authorization: {{API_KEY}}' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'language=en'
POST /user-api-get-orders

Orders history

List of your exchange orders.

Optional filters

id token status exchange_id send_currency_id receive_currency_id
Example 
curl -X POST 'https://en.thecrypto.expert/user-api-get-orders' \
  --header 'X-Authorization: {{API_KEY}}' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'language=en' \
  --data-urlencode 'status=@completed'
POST /user-api-get-referral-orders

Referral orders

Orders of your referrals. Some sensitive fields are hidden.

Optional filters

id token status exchange_id send_currency_id receive_currency_id
Example 
curl -X POST 'https://en.thecrypto.expert/user-api-get-referral-orders' \
  --header 'X-Authorization: {{API_KEY}}' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'language=en'
POST /user-api-get-details

Payment details list

Saved user payment details.

Optional filters

currency_id value
Example 
curl -X POST 'https://en.thecrypto.expert/user-api-get-details' \
  --header 'X-Authorization: {{API_KEY}}' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'language=en'
POST /user-api-create-details

Save payment details

Get currency_id from /public-api-get-currencies.

Parameters

Name Description
currency_id Currency ID · required
value Payment details · required
Example 
curl -X POST 'https://en.thecrypto.expert/user-api-create-details' \
  --header 'X-Authorization: {{API_KEY}}' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'language=en' \
  --data-urlencode 'currency_id=77' \
  --data-urlencode 'value=TXyz...'
POST /user-api-delete-details

Delete payment details

Multiple IDs are allowed.

Parameters

Name Description
ids[] Detail ID or multiple IDs · required
Example 
curl -X POST 'https://en.thecrypto.expert/user-api-delete-details' \
  --header 'X-Authorization: {{API_KEY}}' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'language=en' \
  --data-urlencode 'ids[]=291'
POST /user-api-get-verification

Verification status

Returns a verification request object.

Example 
curl -X POST 'https://en.thecrypto.expert/user-api-get-verification' \
  --header 'X-Authorization: {{API_KEY}}' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'language=en'
POST /user-api-submit-verification

Submit verification

Third-party services may need no params. Card verification needs number, name and photos.

Parameters

Name Description
id_type Document type · optional
id_number Document number · optional
card_number Card number · optional
first_name First name · optional
last_name Last name · optional
middle_name Middle name · optional
birth_date Birth date (dd.mm.yyyy) · optional
phone Phone · optional
country Country · optional
city City · optional
address Address · optional
zip_code ZIP code · optional
photos[] Photos · optional
Example 
curl -X POST 'https://en.thecrypto.expert/user-api-submit-verification' \
  --header 'X-Authorization: {{API_KEY}}' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'language=en'
POST /user-api-spend-balance

Pay from balance

Pay an exchange order from internal balance.

Parameters

Name Description
token Order token · required
two_factor_authentication_password 2FA password (if enabled) · optional
Example 
curl -X POST 'https://en.thecrypto.expert/user-api-spend-balance' \
  --header 'X-Authorization: {{API_KEY}}' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'language=en' \
  --data-urlencode 'token=ORDER_TOKEN'
POST /user-api-change-password

Change password

Change account password.

Parameters

Name Description
password Current password · required
new_password New password · required
two_factor_authentication_password 2FA password (if enabled) · optional
Example 
curl -X POST 'https://en.thecrypto.expert/user-api-change-password' \
  --header 'X-Authorization: {{API_KEY}}' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'language=en'
POST /user-api-setup-two-factor-authentication

2FA setup

Generate the secret yourself and send it only when enabling 2FA.

Parameters

Name Description
two_factor_authentication_token Secret key · optional
two_factor_authentication_enable 1 enable / 0 disable · required
two_factor_authentication_password 2FA password · required
Example 
curl -X POST 'https://en.thecrypto.expert/user-api-setup-two-factor-authentication' \
  --header 'X-Authorization: {{API_KEY}}' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'language=en'
POST /user-api-get-inputs

Saved exchange fields

Array: direction field ID → value.

Example 
curl -X POST 'https://en.thecrypto.expert/user-api-get-inputs' \
  --header 'X-Authorization: {{API_KEY}}' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'language=en'

Useful public methods

No key required (GET). Use them for currency_id and exchange directions:

/public-api-get-currencies /public-api-get-exchanges /public-api-get-exchange /public-api-get-status /public-api-get-referral-program
GET 
curl -X GET 'https://en.thecrypto.expert/public-api-get-currencies?language=en'