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API reference

Documentation for API V2. Major update is addresses with exchange crypto to fiat and vice versa abilities.

General information

API endpoint for all requests in production environment is:

https://app.cryptoprocessing.com/api/v2

API endpoint for all requests in test environment is:

https://app.sandbox.cryptoprocessing.com/api/v2

Deposit flow

  1. You obtain new address from CoinsPaid API (for some currencies it may be address and tag) and store it somewhere on your side. After that you show this address to your customer in order to make a deposit.

  2. Customer sends some funds to this address.

  3. When transaction is sent by a customer - CoinsPaid sends a callback to your callback url with transaction details. It contains status, address, currency, amount and fees. If status is successful, you should deposit respective amount to customer balance on your side.

Withdrawal flow

  1. You request to send amount of money to address.

  2. Your request is validated on our side. If signature is correct, address is valid and you have enough balance - CoinsPaid responds you with the transaction object.

  3. You will receive a callback when transaction status is updated.

Deposit with exchange flow

You don't want to touch or store cryptocurrency, but only use it as a payment method. Your customer deposits BTC, Coinspaid instantly converts it to EUR so that you would receive EUR on your CoinsPaid account.

  1. You obtain new address from CoinsPaid API same as in deposit flow, but additionally pass another parameter "convert_to" in your request specifying resulting currency.

  2. When new deposit is arriving, CoinsPaid converts all arriving funds to destination funds, and sends notifications as in regular deposit

Withdrawal with exchange flow

You wish to send Cryptocurrency from your Fiat currency balance. For example you want to send EUR amount but your customer receives money in BTC.

  1. You do exactly same as in withdrawals, but you specify 2 currencies. One is a currency of your sending balance and Second is a cryptocurrency your Customer wishes to receive.

  2. Your request is validated on our side. If signature is correct, address is valid and you have enough balance - CoinsPaid responds you with the transaction object.

  3. You will receive a callback when transaction status is updated.

Futures flow

In order to guarantee receiving amount, rates should be fixed.

  1. You send address for exchange (If it is not necessary to receive exchange rates you can skip this step)

  2. You receive rates and their fixation time

  3. To confirm futures You have to send exchange pair and amount due.

  4. When new deposit is arriving, CoinsPaid converts all arriving funds to destination funds, and sends notifications as in regular deposit.

In case if received and sent amounts don't equal, CP converts it like normal deposit with exchange.

Limit for this operation is 10 000 EUR.

Invoice flow

Invoices allow to conduct deposits with a fixed rate within a limited period of time disregarding the exchange rate fluctuations. In case it’s necessary to convert funds in fiat currency or convert it to another crypto currency this option will allow to visualize the exact amount of a sender’s currency required to receive the exact amount in a receiver’s currency. When a deposit is processed through this flow, a user is being redirected to the respective Invoice page via the preset link and just needs to follow instructions specified on it. It also allows to conduct refunds in case a user fails to manage to deposit within an established timeframe or discovers non-sufficient balance. All is required in that case is to follow the link with the respective instructions sent to an e-mail of a customer. Detailed information can be found here.

API Endpoints

get
Ping

https://app.cryptoprocessing.com/api/v2/ping
Test if API is up and running and your authorization is working
Request
Response
Request
​
Response
200: OK
OK

Body must be a valid json object or array, example: {}

post
Get list of supported currencies

https://app.cryptoprocessing.com/api/v2/currencies/list
Get all supported currencies
Request
Response
Request
​
Response
200: OK
{
  "data": [
    {
      "id": 1,
      "type": "crypto",
      "currency": "BTC",
      "minimum_amount": "0.001",
      "deposit_fee_percent": "0.99",
      "withdrawal_fee_percent": "0",
      "precision": 8
    }
  ]
}

post
Get list of exchangeable currency pairs

https://app.cryptoprocessing.com/api/v2/currencies/pairs
Get list of currency pairs if no parameters passed. Get particular pair and its price if currency parameters are passed.
Request
Response
Request
Body Parameters
currency_from
optional
string
Filter by currency ISO that exchanges from, example: BTC
currency_to
optional
string
Filter by currency ISO that can be converted to, example: EUR
Response
200: OK
Example of success response
{
  "data": [
    {
      "currency_from": {
        "currency": "BTC",
        "type": "crypto",
        "min_amount": "0.00300000",
        "min_amount_deposit_with_exchange": "0.00010000"
      },
      "currency_to": {
        "currency": "EUR",
        "type": "fiat"
      },
      "rate_from": "1",
      "rate_to": "8795.80000000"
    },
    {
      "currency_from": {
        "currency": "EUR",
        "type": "fiat",
        "min_amount": "25.00000000"
      },
      "currency_to": {
        "currency": "BTC",
        "type": "crypto"
      },
      "rate_from": "1",
      "rate_to": "8885.72951839"
    },
    {
      "currency_from": {
        "currency": "BCH",
        "type": "crypto",
        "min_amount": "0.00020000",
        "min_amount_deposit_with_exchange": "0.00100000"
      },
      "currency_to": {
        "currency": "USD",
        "type": "fiat"
      },
      "rate_from": "1",
      "rate_to": "332.28264751"
    },
    {
      "currency_from": {
        "currency": "USD",
        "type": "fiat",
        "min_amount": "30.00000000"
      },
      "currency_to": {
        "currency": "BCH",
        "type": "crypto"
      },
      "rate_from": "1",
      "rate_to": "335.94361522"
    }
  ]
}
400: Bad Request
Example of response with errors
{
    "errors": {
        "currency_from": "The selected currency from is invalid.",
        "currency_to": "The selected currency to is invalid."
    }
}

post
Get list of balances

https://app.cryptoprocessing.com/api/v2/accounts/list
Get list of all the balances (including zero balances).
Request
Response
Request
​
Response
200: OK
{
    "data": [
        {
            "currency": "DOGE",
            "type": "crypto",
            "balance": "13234.91276375"
        },
        {    
            "currency": "ADA",
            "type": "crypto",
            "balance": "7272.36400468"
        },
        {
            "currency": "EUR",
            "type": "fiat",
            "balance": "5973.97568920"
        },
        {
            "currency": "USDT",
            "type": "crypto",
            "balance": "0.00000000"
        }
    ]
}

post
Receive cryptocurrency

https://app.cryptoprocessing.com/api/v2/addresses/take
Take address for depositing crypto and (it depends on specified params) exchange from crypto to fiat on-the-fly.
Request
Response
Request
Body Parameters
foreign_id
required
string
Your info for this address, will returned as reference in Address responses, example: user-id:2048
currency
required
string
ISO of currency to receive funds in, example: BTC
convert_to
optional
string
If you need auto exchange all incoming funds for example to EUR, specify this param as EUR or any other supported currency ISO, to see list of pairs see previous method.
Response
201: Created
Example of success response
{
  "data": {
    "id": 1,
    "currency": "BTC",
    "convert_to": "EUR",
    "address": "12983h13ro1hrt24it432t",
    "tag": "tag-123",
    "foreign_id": "user-id:2048"
  }
}
400: Bad Request
Example of response with errors
{
    "errors": {
        "foreign_id": "The foreign id field is required."
    }
}

Business logic for using cryptocurrency as a deposit method: You are willing to let your customer fund his EUR balance on your platform or website. You will have to generate an address in the desired cryptocurrency and specify EUR as a "convert_to" currency. This will allow you to let your Customer pay if his favorite currency and fund his balance in EUR. At the same time you will see respective EUR amount in your CoinsPaid merchant account. Hint: you don't have to generate new address for this customer anymore, address can be reused unlimited amount of times.

Example of the customer facing interface for Deposits.

  • Make sure to use Bitcoin URI format bitcoin: in QR. Works the same way as "mailto:".

  • We do recommend making this QR clickable as customers may have a wallet set up on their computer or mobile phone.

  • We recommend specifying approximate current exchange rate.

post
Withdraw cryptocurrency

https://app.cryptoprocessing.com/api/v2/withdrawal/crypto
Withdraw in crypto to any specified address. You can send Cryptocurrency from your Fiat currency balance by using "convert_to" parameter.
Request
Response
Request
Body Parameters
foreign_id
required
string
Unique foreign ID in your system, example: "122929"
amount
required
string
Amount of funds to withdraw, example: "3500"
currency
required
string
Currency ISO to be withdrawn, example: "EUR"
convert_to
optional
string
If you want to auto convert for example EUR to BTC, specify this param as BTC or any other currency supported (see list of exchangeable pairs API method).
address
required
string
Cryptocurrency address where you want to send funds.
tag
optional
string
Tag (if it's Ripple or BNB) or memo (if it's Bitshares or EOS)
Response
201: Created
Example of success response of withdraw without conversion
{
  "data": {
    "id": 1,
    "foreign_id": "122929",
    "type": "withdrawal",
    "status": "processing",
    "amount": "0.01000000",
    "sender_amount": "0.01000000",
    "sender_currency": "ETH",
    "receiver_amount": "0.01000000",
    "receiver_currency": "ETH"
  }
}
400: Bad Request
Example of response with errors
{
  "errors": {
    "amount": "The amount must be at least 0.001."
  }
}

Recommendation: ask customer to specify his payout address even before allowing him to deposit, this will improve experience and help to avoid mistakes with withdrawals in future.

Business logic for using cryptocurrency as a withdrawal method: Your customer requests a payout in Cryptocurrency from his EUR balance on your platform. You have to specify withdrawal amount in EUR and specify Cryptocurrency and its destination (sometimes it is not only Address). Example of such request <Send 3500 EUR to Bitcoin 3D2V3tushw7VLJYnK6vZVDpNcNmEG2a7QK">.

post
Calculate exchange rates

https://app.cryptoprocessing.com/api/v2/exchange/calculate
Get info about exchange rates. Please note, this endpoint has limitation up to 30 requests per minute from one IP address, in case this amount is exceeded a new successful response can only be obtained after one minute break.
Request
Response
Request
Body Parameters
receiver_amount
optional
string
Amount you want to calculate for getting, example: "10". The parameter is required when the "sender_amount" parameter is absent
sender_currency
required
string
Currency ISO for which you want to calculate the exchange rate, example: "BTC"
receiver_currency
required
string
Currency ISO to be exchanged, example: "EUR"
sender_amount
optional
string
Amount you want to calculate, example: "3". The parameter is required when the "receiver_amount" parameter is absent
Response
200: OK
Example of success response
{
  "data": {
    "sender_amount": 1,
    "sender_currency": "BTC",
    "receiver_amount": "8549.81680000",
    "receiver_currency": "EUR",
    "fee_amount": "85.49816800",    
    "fee_currency": "BTC",
    "price": "8549.81680000",
    "ts_fixed": 1564293159,
    "ts_release": 1564293219,
    "fix_period": 60
  }
}
400: Bad Request
Example of response with errors
{
  "errors": {
    "sender_currency": "Exchange is unavailable for given currencies"
  }
}
429: Too Many Requests
{
  "errors": {
    "error code: 1015"
  }
}

post
Exchange on fixed exchange rate

https://app.cryptoprocessing.com/api/v2/exchange/fixed
Make exchange on a given fixed exchange rate.
Request
Response
Request
Body Parameters
sender_currency
required
string
Currency ISO which you want to exchange, example: "LTC"
receiver_currency
required
string
Currency ISO to be exchanged, example: "USD"
sender_amount
required
string
Amount you want to exchange, example: "6.5"
foreign_id
required
string
Unique foreign ID in your system, example: "134453"
price
required
string
Exchange rate price on which exchange will be placed, example: "89.75202000"
Response
201: Created
Example of success response
{
  "data": {
     "id": 2687667,
     "foreign_id": "knwi24op9",
     "type": "exchange",
     "sender_amount": "0.01",
     "sender_currency": "BTC",
     "receiver_amount": "63.52069015",
     "receiver_currency": "EUR",
     "fee_amount": "6.98727592",
     "fee_currency": "EUR",
     "price": "6352.06901520",
     "status": "processing"
    }
}

post
Exchange regardless the exchange rate

https://app.cryptoprocessing.com/api/v2/exchange/now
Make exchange without mentioning the price.
Request
Response
Request
Body Parameters
sender_currency
required
string
Currency ISO which you want to exchange, example: "EUR"
receiver_currency
required
string
Currency ISO to be exchanged, example: "BTC"
sender_amount
required
string
Amount you want to exchange, example: "2"
foreign_id
required
string
Unique foreign ID in your system, example: "124876"
Response
201: Created
Example of success response
{
  "data": {
     "id": 2687669,
     "foreign_id": "wph27bmsp81",
     "type": "exchange",
     "sender_amount": "0.001",
     "sender_currency": "BTC",
     "receiver_amount": "6.33984642",
     "receiver_currency": "EUR",
     "fee_amount": "0.69738311",
     "fee_currency": "EUR",
     "price": "6339.84642127",
     "status": "processing"
    }
}
400: Bad Request
Example of response with errors
{
  "errors": {
    "sender_amount": "The amount must be at least 0.00300000 "
  }
}

post
Calculate rates for futures

https://app.cryptoprocessing.com/api/v2/futures/rates
Get info about rates for futures.
Request
Response
Request
Body Parameters
address
required
string
Exchange address for which you want to calculate futures' rates
Response
200: OK
Example of success response
{
    "data": {
        "addresses": [
            {
                "id": 384620,
                "currency": "BTC",
                "convert_to": "USD",
                "address": "3GQwSBQErsQ863RcuvCkub6SZBPHKuwSV7",
                "tag": null,
                "foreign_id": "ds23fgk"
            }
        ],
        "ts_fixed": 1581507311,
        "ts_release": 1581513311,
        "rates": {
            "BTCUSD": {
                "5.00000000": "10312.67153000",
                "10.00000000": "10312.67153000",
                "20.00000000": "10312.67153000",
                "50.00000000": "10312.67153000",
                "100.00000000": "10312.67153000",
                "200.00000000": "10312.67153000",
                "300.00000000": "10312.67153000"
            }
        }
    }
}
400: Bad Request
Example of response with errors
{
    "errors": {
        "address": "Address is not found, incorrect or without exchange"
    }
}

post
Confirm futures transaction

https://app.cryptoprocessing.com/api/v2/futures/confirm
Confirm futures transaction.
Request
Response
Request
Body Parameters
address
required
string
Exchange address for which you want to confirm futures
sender_currency
required
string
Currency ISO which you want to exchange, example: "BTC"
receiver_currency
required
string
Currency ISO to be exchanged, example: "EUR"
receiver_amount
required
string
Amount you want to receive
Response
200: OK
Example of success response
{
    "data": {
        "futures_id": 92,
        "sender_currency": "BTC",
        "receiver_currency": "USD",
        "fee_currency": "USD",
        "price": "10299.94946000",
        "address": {
            "id": 384620,
            "currency": "BTC",
            "convert_to": "USD",
            "address": "3GQwSBQErsQ863RcuvCkub6SZBPHKuwSV7",
            "tag": null,
            "foreign_id": "ds23fgk"
        },
        "sender_amount": "0.00292",
        "receiver_amount": "30.00000000",
        "fee_amount": "1.50000000",
        "ts_fixed": 1581506566,
        "ts_release": 1581512566
    }
}
400: Bad Request
Example of response with errors
{
    "errors": {
        "address": "Address is not found, incorrect or without exchange. Error can be related to incorrect sender or receiver currencies."
    }
}

post
Create Invoice

https://app.cryptoprocessing.com/api/v2/invoices/create
Create invoice for the client for a specified amount.
Request
Response
Request
Body Parameters
timer
required
boolean
Time on the rate is fixed for invoice payment (15 minutes). During this time the user has to pay an invoice.
title
required
string
Invoice title that will be displayed to the user
description
optional
string
Invoice description that will be displayed to the user
currency
required
string
ISO invoice currency that you want to receive from the user, for example: “EUR”
sender_currency
optional
string
Currency of user invoice payment (3rd type invoice will be externalized at the time of sending this parameter with timer= true), example: “BTC“
amount
required
integer
Invoice amount that you want to receive from the user, example: “106.75“
foreign_id
required
string
Unique foreign ID in your system, example: "164"
url_success
required
string
URL on which we redirect the user in case of a successful invoice payment, example: “https://merchant.name.com/url_success“
url_failed
required
string
URL on which we redirect the user in case of an unsuccessful invoice payment, example: “https://merchant.name.com/url_failed“
email_user
required
string
In case the payment amount does not match the amount stated above, we will send an email to the stated address with instructions on funds recovery. In case of underpayment, the whole amount will be refunded. In case of overpayment, user will be able to recover the difference by following the instructions
Response
200: OK
Example of a successful response
{
   "data":{
      "id":79,
      "url":"https://app.coinspaid.com/invoice/RB9NZv",
      "foreign_id":164,
      "name":"TEST NAME",
      "status":"created",
      "currency":"EUR",
      "amount":"106.75",
      "sender_currency":"BTC",
      "sender_amount":null,
      "fixed_at":1581929889,
      "release_at":1581930789
   }
}
400: Bad Request
Example of a response with errors
{
   "errors":{
      "foreign_id":"The foreign id has already been taken."
   }
}

Payment terminal JSON parameters

A set of parameter included in URL that will allow to redirect a user to Payment Terminal. For more info navigate through this section of documentation.

Name

Description

Optionality

Type

client_id

This is a unique ID that’s generated on the side of CoinsPaid

Required

int

currency

ISO of a currency to receive funds in, example: BTC

Required

string

amount

Amount of funds to withdraw, example: "3500"

Optional

numeric

convert_to

In case you need on-the-fly exchange of all incoming funds (e.g. to EUR) specify this parameter as EUR or any other supported currency ISO, to see the list of available pairs check the method above

Optional

string

is_iframe

The parameter that allows you to get an iframe-link (false by default).

Optional

boolean

foreign_id

Unique foreign ID in your system, example: "164"

Required

string

url_back

A link that allows you to get a user back to your system

Optional

url

Transaction statuses

Status

Meaning

confirmed

Final. You are safe to process this transaction

not_confirmed

Transaction is not yet confirmed.

cancelled

Final. This transaction is a double spend or cancelled withdrawal. Pay attention to this transaction.

"transaction_type" parameter values

Type

Description

Blockchain

Type of transactions that are written into blockchain. Such transactions (deposits and withdrawals) can be tracked via according explorer for suitable blockchain. This is the most common type of transactions.

Internal

Type of transactions between two addresses within our processing (between separate merchant accounts or different addresses of the single merchant). Such transactions are not written in blockchain, but still can be tracked via our internal explorer - https://explorer.coinspaid.com/​

Exchange

Type of transactions that requires exchange between crypto-fiat or crypto-crypto pairs.

Transitions

Transaction

Transition

Successful deposit

not_confirmed -> confirmed

Unsuccessful deposit

not_confirmed -> cancelled

Successful withdrawal

confirmed

Unsuccessful withdrawal

cancelled

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Contents
General information
API Endpoints
get
Ping
post
Get list of supported currencies
post
Get list of exchangeable currency pairs
post
Get list of balances
post
Receive cryptocurrency
post
Withdraw cryptocurrency
post
Calculate exchange rates
post
Exchange on fixed exchange rate
post
Exchange regardless the exchange rate
post
Calculate rates for futures
post
Confirm futures transaction
post
Create Invoice
Payment terminal JSON parameters
Transaction statuses
"transaction_type" parameter values
Transitions