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API Documentation

Our API allows you to programmability interact with our exchange system. This documentation is for our REST API.

We also have a Websocket API available for realtime trade and orderbook data.

The API is divided into two sections

  1. Public API: Which allows anyone to lookup market data about the exchange; such as rates, order book volume, etc...
  2. Private API: Which requires users to have an account with us; the private API allows users to interact with their account; such look balance inquiry, place orders, canceling orders, viewing history, etc...

Public API

To use the public API no authentication is required; simply access any of the public API URLs and JSON encode data will be returned.

Market Data (Ticker)

GET: https://bx.in.th/api/

Returns a list of all currency pairings including:

  • primary_currency
  • secondary_currency
  • last_price
  • volume_24hours
  • orderbook

Currency Pairings

GET: https://bx.in.th/api/pairing/

Returns a list of all available currency pairings, including their "pairing_id" which is required for some API calls. Will also include the minimum order amount for primary and secondary currency in each pairing market.

Order Book (Full)

GET: https://bx.in.th/api/orderbook/?pairing={pairing_id}

Example: https://bx.in.th/api/orderbook/?pairing=1

Returns a list of all buy and sell orders in the order book for the selected pairing market.

Recent Trades

GET: https://bx.in.th/api/trade/?pairing={pairing_id}

Example: https://bx.in.th/api/trade/?pairing=1

Returns a list of 10 most recent trades, and top 10 asks and bids in orderbook

Historical Trade Data

GET: https://bx.in.th/api/tradehistory/?pairing={pairing_id}&date={date}

Example: https://bx.in.th/api/tradehistory/?pairing=1&date=2014-10-21

Returns Weighted Average, Volume, Open, Close, Low and High prices for the specified date.

Private API

To use the private API you must generate an API Key in your account area. Each API key generated will have an "API Key" and an "API Secret".

Every query to the private API must include the following POSTed fields:

  • key - API Key
  • nonce - Nonce
  • signature - Signature
  • twofa - 2Factor Auth. Code *
API Key

The API Key in found in the "API Key" column when you generate your API keys.

Nonce

This is an integer value that must increase with every API call you make, for example if your first API call uses nonce=1 then the next API call must use a nonce of 2 or greater

A common practice is to use unix time for that parameter.

Signature

A SHA-256 hash of the following data api_key + nonce + api_secret

A PHP example:

$signature = hash('sha256',$api_key.$nonce.$api_secret);

2Factor Auth. Code

Only required if you have enabled two factor authentication on the API key

Create Order

POST: https://bx.in.th/api/order/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required pairing Currency pairing ID int Example: BTC/LTC trades using "2"
Required type Order type buy / sell
Required amount Amount in primary currency for buy order
Amount in secondary currency for sell order		 float
Required rate Exchange rate float
Returned JSON values:
Field Description Possible Values
success Order placement was successful true / false
order_id Order ID number (if order is immediately executed order ID will be 0) int
history_id History Order ID which will be unique across all order books int
error If success is false; this is the reason string

Cancel Order

POST: https://bx.in.th/api/cancel/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required pairing Currency pairing ID int Example: BTC/LTC trades using "2"
Required order_id * Order ID number int or string

* If you want to cancel multiple orders include them in the "order_id" field as comma separated string (Example: order_id=1,4,9 ). Limit of 10 orders per cancelation request

Returned JSON values:
Field Description Possible Values
success Order cancellation was successful true / false
error If success is false; this is the reason string

Get Balances

POST: https://bx.in.th/api/balance/

POST only the standard authentication fields key, nonce, signature

Returned JSON values (for each currency)
  • available - Available balance
  • total - Total balance (including orders, pending withdrawals and pending deposits)
  • orders - Open orders balance
  • withdrawals - Pending withdrawals balance
  • deposits - Pending deposits balance

Get Orders

POST: https://bx.in.th/api/getorders/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Optional pairing Currency pairing ID int Example: BTC/LTC trades using "2"
Optional type Order type buy / sell
Returned JSON values (for each order):
Field Description Possible Values
pairing_id Currency Pairing ID int
order_id Order ID number int
order_type Order type buy / sell
amount Order Amount float
rate Order Exchange Rate float
date Date order was placed datetime

Transaction History

Get your own balance affecting transaction history, such as trades, withdrawals and deposits.

POST: https://bx.in.th/api/history/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Optional currency Only transactions for this currency string Example: BTC
Optional type Transaction type trade / fee / deposit / withdraw
Optional start_date Only transactions after this date datetime YYYY-mm-dd H:i:s
Optional end_date Only transactions before this date datetime YYYY-mm-dd H:i:s
Returned JSON values (for each transaction):
Field Description Possible Values
transaction_id Unique transaction ID int
currency Transaction currency string
amount Transaction Amount float
date Transaction Date datetime
type Transaction Type trade / fee / deposit / withdrawal
ref_id Can be used to link history items int

Get Deposit Address

POST: https://bx.in.th/api/deposit/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required currency 3 letter currency code string Example: BTC
Optional new Generate a new address true / false
Returned JSON values:
  • address

Request Withdrawal

POST: https://bx.in.th/api/withdrawal/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required currency 3 letter currency code string
Required amount Amount to withdraw float
Required for crypto address Address for crypto-withdrawals string
Required for fiat bank_id Bank ID (found here) string
Returned JSON values:
Field Description Possible Values
success* Withdrawal was successfully placed true / false
withdrawal_id Withdrawal ID number int
error If success is false; this is the reason string

* Successful withdrawal means that the withdrawal was successfully added to queue for processing. It does not mean the transaction has been broadcast to the blockchain yet

Withdrawal History

POST: https://bx.in.th/api/withdrawal-history/

POST only the standard authentication fields key, nonce, signature

Returned JSON values (for each withdrawal)
  • withdrawal_id - Unique ID of withdrawal
  • date_requested - Date/time of withdrawl request
  • withdrawal_status - Status of withdrawal (Pending, Canceled, Completed)
  • amount - Amount of withdrawal
  • currency - Currency code of withdrawal
  • address - Address withdrawal was sent to
  • transaction_id - External network transaction ID, for example Bitcoin Transaction ID

Private Bill Payment API

List Bill Payment Types/Groups

POST: https://bx.in.th/api/billgroup/

POST only the standard authentication fields key, nonce, signature

Returned JSON values (for each payment group type)
  • id - Unique ID of payment group type
  • name - Name of the payment group type

List Bill Payment Service Providers

POST: https://bx.in.th/api/biller/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required group_id Unique ID of payment group type int
Returned JSON values (for each service provider)
  • id - Unique ID of service provider
  • name - Name of the service provider
  • fee - Fee associated with service provider (possible float value or % percent value)
  • amount - If service provider requires specific payment amounts only this will contain an array of values

Create Bill Payment

Note that bill payment requests behave in the same way as a withdrawal and status can be checked using the withdrawal history API

POST: https://bx.in.th/api/billpay/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required biller Service provider ID from biller API list int
Required amount Amount to payment float
Required account Phone number or Account # for payment string
Returned JSON values:
Field Description Possible Values
success* Withdrawal was successfully placed true / false
withdrawal_id Withdrawal ID number int
error If success is false; this is the reason string

Public Options API

Get Available Options

GET: https://bx.in.th/api/options/?pairing={pairing_id}&date={YYYY-mm-dd}

Example: https://bx.in.th/api/options/?pairing=1&date=2014-10-31

NOTE: The date must be a valid future option expiration date (should a Friday in the future)

Returns all Calls and Puts expiring on the specific date.

Returned JSON values (for each option):
Field Description Possible Values
strike Strike price float
volume Volume amount float
expire Expiration Date date (YYYY-mm-dd)
qty Quantity int
bid Highest Bid float (or null)
ask Lowest Ask float
ids Unique IDs for each individual option comma separated int

Options Orderbook

GET: https://bx.in.th/api/optionbook/?id={option_id}

Example: https://bx.in.th/api/optionbook/?id=203

The id field should be populated with an option ID returned in the ids field of the Get Available Options API call

Returns all bid and ask orders for the option bucket.

Returned JSON values (for each order):
Field Description Possible Values
option_id Unique option ID int
pairing_id Currency Pairing ID int
option_type 1 = Call, 2 = Put int
strike Strike price float
volume Volume amount float
expire Expiration Date date (YYYY-mm-dd)
qty Quantity int
price_type Bid or Ask bid ask
price Ask/Bid price float

Private Options API

Issue Option

All private option API calls must be authenticated in the same way described in the Private API section above

POST: https://bx.in.th/api/option-issue/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required pairing Currency pairing ID int Example: BTC/LTC pairing = "2"
Required type Option type call / put
Required strike Option strike price (Primary Currency) float
Required volume Option volume (Secondary Currency) float
Required qty Number of options to issue int
Required expire Option Expiration date (YYYY-mm-dd)
Required ask Asking price (Primary Currency) float
Returned JSON values:
Field Description Possible Values
success Option issuance was successful true / false
option_id Unqiue ID of the option int
error If success is false; this is the reason string

Bid on Option

Cancel option function can be used to cancel any option you have listed for sale, or any open bids

POST: https://bx.in.th/api/option-bid/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required option_id Unique Option ID int
Required bid Bid Price (Primary Currency) int
Required qty Number of options to buy int
Optional fill_kill Fill all order or kill it false (default) / true
Returned JSON values:
Field Description Possible Values
success Option cancellation was successful true / false
filled IDs of filled bids array
open IDs of open bids array
error If success is false; this is the reason string

Sell an Option / Change Ask Price

Sell an option function is used to put an option, that you own, back up for sale

This function can also be used to change the ask price of issuance

POST: https://bx.in.th/api/option-sell/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required option_id Unique Option ID int
Required ask Ask Price (Primary Currency) int
Returned JSON values:
Field Description Possible Values
success Option cancellation was successful true / false
sold Was option sold (or remains open for sale) true / false
error If success is false; this is the reason string

Get My Issuances

POST: https://bx.in.th/api/option-myissue/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required pairing Currency pairing ID int Example: BTC/LTC pairing = "2"
Optional expire Expiration Date date (YYYY-mm-dd)
Optional type Option Type call put
Returned JSON values (for each option):
Field Description Possible Values
pairing_id Pairing ID int
type Option Type call put
option_id Unique ID for option int
strike Strike price float
volume Volume amount float
expire Expiration Date date (YYYY-mm-dd)
status Current Status open sold exercised expired canceled
price Ask/Sold price float

Get My Bids

POST: https://bx.in.th/api/option-mybid/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required pairing Currency pairing ID int Example: BTC/LTC pairing = "2"
Optional expire Expiration Date date (YYYY-mm-dd)
Optional type Option Type call put
Returned JSON values (for each option):
Field Description Possible Values
pairing_id Pairing ID int
option_id Unique ID for option int
strike Strike price float
volume Volume amount float
expire Expiration Date date (YYYY-mm-dd)
status Current Status open expired cancel
price Bid price float

Get My Options

POST: https://bx.in.th/api/option-myoptions/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required pairing Currency pairing ID int Example: BTC/LTC pairing = "2"
Optional expire Expiration Date date (YYYY-mm-dd)
Optional type Option Type call put
Returned JSON values (for each option):
Field Description Possible Values
pairing_id Pairing ID int
option_id Unique ID for option int
strike Strike price float
volume Volume amount float
expire Expiration Date date (YYYY-mm-dd)
status Current Status for sale exercisable exercised expired canceled
price Price Paid float
ask Sale ask price float
bid Highest bid float

Exercise Options

POST: https://bx.in.th/api/option-exercise/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required option_id Unique Option ID int
Returned JSON values:
Field Description Possible Values
success Option exercise was successful true / false
error If success is false; this is the reason string

Cancel Option Sale or Bid

Cancel option function can be used to cancel any option you have listed for sale, or any open bids

POST: https://bx.in.th/api/option-cancel/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required option_id Unique Option/Bid IDs int comma separated list for multiple
Returned JSON values:
Field Description Possible Values
success Option cancellation was successful true / false
error If success is false; this is the reason string

Get Option History

Get the general option trading history on your account

POST: https://bx.in.th/api/option-history/

POSTed fields (in addition to the standard key, nonce, signature fields:

Field Description Possible Values
Required pairing Currency pairing ID int Example: BTC/LTC pairing = "2"
Returned JSON values (for each history line):
Field Description Possible Values
action History Action Bought Sold Exercised Issued Canceled
option_type Option Type call put
qty Quantity of options int
price Ask/Sold Price float
strike Strike price float
volume Volume amount float
date Action Date date (YYYY-mm-dd)

Example PHP API Class

Download on Github: https://github.com/bitcoincoltd/bitexthai/