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python javascript

Authentication

To sign requests, you can use following code:

import time
import base64
import hashlib
import hmac
import json
import requests

API_URL = 'https://api.cryptochill.com'
API_KEY = 'my_api_key'
API_SECRET = 'my_api_secret'


def encode_hmac(key, msg, digestmod=hashlib.sha256):
    return hmac.new(key.encode(), msg=msg, digestmod=digestmod).hexdigest()

def cryptochill_api_request(endpoint, payload=None, method='GET'):
    payload_nonce = str(int(time.time() * 1000))
    request_path = '/v1/%s/' % endpoint
    payload = payload or {}
    payload.update({'request': request_path, 'nonce': payload_nonce})

    # Encode payload to base64 format and create signature using your API_SECRET 
    encoded_payload = json.dumps(payload).encode()
    b64 = base64.b64encode(encoded_payload)
    signature = encode_hmac(API_SECRET, b64)

    # Add your API key, encoded payload and signature to following headers
    request_headers = {
        'X-CC-KEY': API_KEY,
        'X-CC-PAYLOAD': b64,
        'X-CC-SIGNATURE': signature,
    }

    # Make request
    response = requests.request(method, API_URL + request_path, headers=request_headers)
    return response.json()

profiles = cryptochill_api_request('profiles')
print(json.dumps(profiles, indent=2))

const axios = require('axios');
const Base64 = require('js-base64').Base64;
const crypto = require('crypto');

const API_URL = 'https://api.cryptochill.com';
const API_KEY = 'my_api_key';
const API_SECRET = 'my_api_secret';

function encode_hmac(key, msg) {
    return crypto.createHmac('sha256', key).update(msg).digest('hex');
}

function cryptochill_api_request(endpoint, payload = {}, method = 'GET') {
    const request_path = '/v1/' + endpoint + '/'
    payload.request = request_path;
    payload.nonce = (new Date).getTime();

    // Encode payload to base64 format and create signature using your API_SECRET
    const encoded_payload = JSON.stringify(payload);
    const b64 = Base64.encode(encoded_payload);
    const signature = encode_hmac(API_SECRET, b64);

    // Add your API key, encoded payload and signature to following headers
    let request_headers = {
        'X-CC-KEY': API_KEY,
        'X-CC-PAYLOAD': b64,
        'X-CC-SIGNATURE': signature,
    };

    return axios({
        method: method,
        url: API_URL + request_path,
        headers: request_headers,
    });
}

cryptochill_api_request('profiles').then(function (response) {
    console.log(response);
}).catch(function (error) {
    console.log(error);
});

You can obtain API Keys by logging in and creating a key in Settings > API Keys. This will give you both an "API Key" that will serve as your user name, and an "API Secret" that you will use to sign messages.

All requests must contain a nonce, a number that will never be repeated and must increase between requests. This is to prevent an attacker who has captured a previous request from simply replaying that request. We recommend using a timestamp at millisecond or higher precision. The nonce need only be increasing with respect to the session that the message is on.

PAYLOAD

The payload of the requests must be a JSON object, which will be described in the documentation below. Rather than being sent as the body of the POST request, it will be base-64 encoded and stored as a header in the request.

The following three headers is all that is required to make requests to CryptoChill API:

Header Value
X-CC-KEY Your CryptoChill API Key
X-CC-PAYLOAD Base64-encoded JSON payload
X-CC-SIGNATURE hex(HMAC_SHA256(base64(payload), key=api_secret))

Invoices

Invoices are time-sensitive payment requests addressed to specific buyers or payers. Invoice has a unique receiving address and fixed price, typically denominated in fiat currency. It also has a BTC equivalent price, calculated by CryptoChill, with an expiration time of about 15 minutes.

List Invoices

invoices = cryptochill_api_request('invoices')

cryptochill_api_request('invoices').then(function (response) {
    console.log(response);
}).catch(function (error) {
    console.log(error);
});

The above command returns JSON structured like this:

{
  "pagination": {
    "num_pages": 1,
    "count": 12,
    "page": 1,
    "next_page": null,
    "previous_page": null,
    "per_page": 25
  },
  "result": [
    {
      "id": "123",
      "created_at": "2019-01-23T14:31:20.750500+00:00",
      "profile_id": "bb519172-5823-4170-a1ba-b94143eaaaea",
      "address": "3Q2sdSVxqQCyYUt4NvX2y4XNmn7PRF77PZ",
      "network": "mainnet",
      "status": "paid",
      "amount": {
        "requested": {
          "amount": "99.00000000",
          "currency": "USD"
        },
        "invoiced": {
          "amount": "0.02731120",
          "currency": "BTC",
          "rate_usd": "3624.886995160658"
        },
        "paid": {
          "amount": "0.02731120",
          "currency": "BTC"
        }
      },
      "custom_fee": null,
      "min_confirmations": null,
      "notes": null,
      "passthrough": "{\"user_id\":1}"
    }
  ]
}

This endpoint retrieves all invoices. Endpoint uses pagination and returns 25 invoices per page. Invoices are sorted by creation time in descending order.

HTTP Request

GET https://api.cryptochill.com/v1/invoices/

Query Parameters

Parameter Default Description
p None Page number.
txid None Filter invoices by txid
address None Filter invoices by receiving address
status None Filter by status. Available values: "new", "pending", "complete", "expired".

Get Invoice

invoice = cryptochill_api_request('invoices/42dbee1d-8659-44c3-aab2-6e414c5825a5')

cryptochill_api_request('invoices/42dbee1d-8659-44c3-aab2-6e414c5825a5').then(function (response) {
    console.log(response);
}).catch(function (error) {
    console.log(error);
});

The above command returns JSON structured like this:

{
  "result": {
    "id": "42dbee1d-8659-44c3-aab2-6e414c5825a5",
    "created_at": "2019-02-08T01:06:11.799601+00:00",
    "profile_id": "bb519172-5823-4170-a1ba-b94143eaaaea",
    "address": "3Q2sdSVxqQCyYUt4NvX2y4XNmn7PRF77PZ",
    "network": "mainnet",
    "status": "new",
    "amount": {
      "requested": {
        "amount": "10.00",
        "currency": "USD"
      },
      "invoiced": {
        "amount": "0.00292111",
        "currency": "BTC"
      },
      "paid": null
    },
    "custom_fee": null,
    "min_confirmations": null,
    "notes": null,
    "passthrough": "{\"user_id\": 123}",
    "transactions": []
  }
}

This endpoint retrieves a specific invoice.

HTTP Request

GET https://api.cryptochill.com/v1/invoices/<ID>/

URL Parameters

Parameter Description
ID The ID of the invoice to retrieve.

Create Invoice

import json 

payload = {
  "amount": "10",
  "currency": "USD",
  "profile_id": "456",
  "passthrough": json.dumps({"user_id": 123})
}
invoice = cryptochill_api_request('invoices', payload, 'POST')
print(json.dumps(invoices, indent=2))

var payload = {
  "amount": "10",
  "currency": "USD",
  "profile_id": "456",
  "passthrough": JSON.stringify({"user_id": 123})
}
cryptochill_api_request('invoices', payload, 'POST').then(function (response) {
    console.log(response);
}).catch(function (error) {
    console.log(error);
});

JSON response for Create Invoice endpoint:

{
  "result": {
    "id": "42dbee1d-8659-44c3-aab2-6e414c5825a5",
    "created_at": "2019-02-08T01:06:11.799601+00:00",
    "profile_id": "bb519172-5823-4170-a1ba-b94143eaaaea",
    "address": "3Q2sdSVxqQCyYUt4NvX2y4XNmn7PRF77PZ",
    "network": "mainnet",
    "status": "new",
    "amount": {
      "requested": {
        "amount": "10.00",
        "currency": "USD"
      },
      "invoiced": {
        "amount": "0.00292111",
        "currency": "BTC"
      },
      "paid": {
        "amount": "0.00292111",
        "currency": "BTC"
      }
    },
    "custom_fee": null,
    "min_confirmations": null,
    "notes": null,
    "passthrough": "{\"user_id\": 123}",
    "transactions": [
      {
        "id": "9094fefe-3ac2-49b3-99ec-9b719331316c",
        "txid": "7f96054005c8aab5101d48211cb23070b6a9d9b7ea25b3422de2c109eb57fad9",
        "confirmations": 6,
        "amount": "0.00292111",
        "created_at": "2019-02-08T01:08:11.799601+00:00"
      }
    ]
  }
}

This endpoint creates an invoice. Response is identical to Get Invoice endpoint response.

HTTP Request

POST https://api.cryptochill.com/v1/invoices/

Payload Parameters

Parameter Description Required
amount Quoted decimal payment amount. Yes
currency Currency for the specified payment amount. Available values: USD, BTC, EUR, GBP, AUD, CHF. Yes
profile_id Profile ID to use for settings, callback and wallet address generation. Yes
passthrough String. Meta-data you wish to store with the invoice. Will be sent alongside all callbacks associated with the invoice. No
fee_amount Custom fee amount that will be deducted from "paid" amount response. No
fee_currency Custom fee currency. Available values: BTC No
min_confirmations Minimum confirmations required to change status to "confirmed" and trigger callback. Available values: 1-5. Default: Profile min_confirmations setting value. No
notes Can be product or service name or any other notes. Visible in dashboard and in public invoice link. No

Invoice Callbacks

Callbacks provide same exact response format as in Get Invoice API endpoint in result field plus three extra fields specified in Callbacks Documentation.

You can view history of callbacks (if any) in CryptoChill in Invoice detail view.

Invoice Callback Statuses

Status Description
invoice_pending Sum of all incoming transactions matches requested amount (0 confirmations).
invoice_confirmed Sum of all incoming transactions matches requested amount (at last 1 confirmations).
invoice_complete Sum of all incoming transactions matches requested amount (6+ confirmations).
invoice_incomplete Transaction(s) were made, but amount is less than requested in the invoice. Requires manual handling.

Transactions

Transactions are incoming Bitcoin transactions paid for invoices or any transactions deposited to any of wallets addresses.

List Transactions

transactions = cryptochill_api_request('transactions')

cryptochill_api_request('transactions').then(function (response) {
    console.log(response);
}).catch(function (error) {
    console.log(error);
});

The above command returns JSON structured like this:

{
  "pagination": {
    "num_pages": 1,
    "count": 12,
    "page": 1,
    "next_page": null,
    "previous_page": null,
    "per_page": 25
  },
  "result": [
    {
      "id": "9094fefe-3ac2-49b3-99ec-9b719331316c",
      "txid": "7f96054005c8aab5101d48211cb23070b6a9d9b7ea25b3422de2c109eb57fad9",
      "invoice": {
        "id": "47ad5fa7-0754-4ba8-bc2d-1cdd0dbcddaa",
        "created_at": "2019-02-07T22:13:15.093624+00:00",
        "profile_id": "bb519172-5823-4170-a1ba-b94143eaaaea",
        "address": "3Q2sdSVxqQCyYUt4NvX2y4XNmn7PRF77PZ",
        "network": "mainnet",
        "amount": {
          "requested": {
            "amount": "10.00",
            "currency": "USD"
          },
          "invoiced": {
            "amount": "0.00293528",
            "currency": "BTC"
          }
        },
        "custom_fee": null,
        "min_confirmations": null,
        "notes": null,
        "passthrough": "{\"test\":123}"
      },
      "amount": {
        "paid": {
          "amount": "0.00293528",
          "currency": "BTC",
          "quotes": {
            "USD": "10.00"
          }
        }
      },
      "created_at": "2019-02-07T22:13:28.681005+00:00",
      "executed_at": "2019-02-07T22:21:59+00:00",
      "confirmed_at": "2019-02-07T23:09:31.983230+00:00",
      "confirmations": 6,
      "status": "complete",
      "network": "mainnet"
    }
  ]
}

This endpoint retrieves all transactions. Endpoint uses pagination and returns 25 transactions per page. Transactions are sorted by creation time in descending order.

HTTP Request

GET https://api.cryptochill.com/v1/transactions/

Query Parameters

Parameter Default Description
p None Page number.
txid None Filter transactions by txid
address None Filter transactions by receiving address
invoice_id None Filter transactions by Invoice ID

Get Transaction

profiles = cryptochill_api_request('transactions/asd123')

cryptochill_api_request('transactions/asd123').then(function (response) {
    console.log(response);
}).catch(function (error) {
    console.log(error);
});

The above command returns JSON structured like this:

{
  "result": {
    "id": "9094fefe-3ac2-49b3-99ec-9b719331316c",
    "txid": "7f96054005c8aab5101d48211cb23070b6a9d9b7ea25b3422de2c109eb57fad9",
    "invoice": {
      "id": "47ad5fa7-0754-4ba8-bc2d-1cdd0dbcddaa",
      "created_at": "2019-02-07T22:13:15.093624+00:00",
      "profile_id": "bb519172-5823-4170-a1ba-b94143eaaaea",
      "address": "3Q2sdSVxqQCyYUt4NvX2y4XNmn7PRF77PZ",
      "network": "mainnet",
      "amount": {
        "requested": {
          "amount": "10.00",
          "currency": "USD"
        },
        "invoiced": {
          "amount": "0.00293528",
          "currency": "BTC"
        }
      },
      "custom_fee": null,
      "min_confirmations": null,
      "notes": null,
      "passthrough": "{\"test\":123}"
    },
    "amount": {
      "paid": {
        "amount": "0.00293528",
        "currency": "BTC",
        "quotes": {
          "USD": "10.00"
        }
      }
    },
    "created_at": "2019-02-07T22:13:28.681005+00:00",
    "executed_at": "2019-02-07T22:21:59+00:00",
    "confirmed_at": "2019-02-07T23:09:31.983230+00:00",
    "confirmations": 6,
    "status": "complete",
    "network": "mainnet"
  }
}

This endpoint retrieves a specific transaction.

HTTP Request

GET https://api.cryptochill.com/v1/transactions/<ID>/

URL Parameters

Parameter Description
ID The ID of the transaction to retrieve.

Custom Fees

Example response if custom fees are applied.

{
  "result": {
    "id": "9094fefe-3ac2-49b3-99ec-9b719331316c",
    "txid": "7f96054005c8aab5101d48211cb23070b6a9d9b7ea25b3422de2c109eb57fad9",
    "invoice": {
      "id": "cab4f4ff-6654-46c7-b22e-7d31da1eebcd",
      "created_at": "2019-02-08T12:36:21.130435+00:00",
      "profile_id": "bb519172-5823-4170-a1ba-b94143eaaaea",
      "address": "3Q2sdSVxqQCyYUt4NvX2y4XNmn7PRF77PZ",
      "network": "mainnet",
      "amount": {
        "requested": {
          "amount": "100.00",
          "currency": "USD"
        },
        "invoiced": {
          "amount": "0.02967564",
          "currency": "BTC"
        }
      },
      "custom_fee": {
        "amount": "0.00050000",
        "currency": "BTC"
      },
      "min_confirmations": null,
      "notes": null,
      "passthrough": "{\"user_id\": 123}"
    },
    "amount": {
      "paid": {
        "amount": "0.02917564",
        "currency": "BTC",
        "quotes": {
          "USD": "100.00"
        }
      },
      "paid_total": {
        "amount": "0.02967564",
        "currency": "BTC",
        "quotes": {
          "USD": "101.71"
        }
      }
    },
    "created_at": "2019-02-08T12:36:21.200127+00:00",
    "executed_at": null,
    "confirmed_at": null,
    "status": "complete",
    "confirmations": 6,
    "network": "testnet"
  }
}

With "Custom Fees" feature merchants can charge extra fee on top of every invoice. If "fee_amount" field is specified while creating invoice, extra fee will be added to invoiced amount and later on deducted from "paid" field. In such case response will also have extra "paid_total" key with an actual transaction values and relevant quotes.

Transaction Statuses

Status Description
pending Transaction is broadcast on the Bitcoin network (0 confirmations).
confirmed Transaction is included in the first block (1 confirmation).
complete Transaction has 6+ confirmations.
invalid Transaction haven't been confirmed for more than hour. If it gets's confirmed later, status will be updated to "Confirmed".

Transaction Callbacks

Callbacks provide same exact response format as in Get Transaction API endpoint in result field plus three extra fields specified in Callbacks Documentation.

You can view history of callbacks (if any) in CryptoChill in Transaction detail view.

Transaction Callback Statuses

Status Description
transaction_pending Any incoming transaction to invoice address (0 confirmations).
transaction_confirmed Any incoming transaction to invoice address (1 confirmation).
transaction_complete Any incoming transaction to invoice address (6+ confirmations).

Payouts

Payouts are Bitcoin withdrawals or payments to customers, partners, etc.

List Payouts

payouts = cryptochill_api_request('payouts')

cryptochill_api_request('payouts').then(function (response) {
    console.log(response);
}).catch(function (error) {
    console.log(error);
});

This endpoint retrieves all payouts. Endpoint uses pagination and returns 25 payouts per page. Payouts are sorted by creation time in descending order.

HTTP Request

GET https://api.cryptochill.com/v1/payouts/

Query Parameters

Parameter Default Description
p None Page number.
txid None Filter payouts by txid

Get Payout

payout = cryptochill_api_request('payouts/42dbee1d-8659-44c3-aab2-6e414c5825a5')

cryptochill_api_request('payouts/42dbee1d-8659-44c3-aab2-6e414c5825a5').then(function (response) {
    console.log(response);
}).catch(function (error) {
    console.log(error);
});

This endpoint retrieves a specific payout.

HTTP Request

GET https://api.cryptochill.com/v1/payouts/<ID>/

URL Parameters

Parameter Description
ID The ID of the payout to retrieve.

Create Payout

import json 

payload = {
  "profile_id": "e4e197bf-486d-4f57-a064-2d047c6cafae",
  "passthrough": json.dumps({"user_id": 123}),
  "recipients": [
    {
      "amount": "20",
      "currency": "USD",
      "address": "2N38koyyonVDAZJRV4GwnuFPxcGTymzn9HQ",
      "notes": "Notes 1"
    },
    {
      "amount": "10",
      "currency": "GBP",
      "address": "2MzCZNNDrmUB55LzdXnmdaXH2h2nJJ9EhrL",
      "notes": "Notes 2"
    },
    {
      "amount": "0.01",
      "currency": "BTC",
      "address": "2NC3zgngjjRWR7kbKzKYYPR2jpWh3QZHRML",
      "notes": "Notes 3"
    }
  ]
}
payout = cryptochill_api_request('payouts', payload, 'POST')
print(json.dumps(payout, indent=2))


var payload = {
  "profile_id": "e4e197bf-486d-4f57-a064-2d047c6cafae",
  "passthrough": JSON.stringify({"user_id": 123}),
  "recipients": [
    {
      "amount": "20",
      "currency": "USD",
      "address": "2N38koyyonVDAZJRV4GwnuFPxcGTymzn9HQ",
      "notes": "Notes 1"
    },
    {
      "amount": "10",
      "currency": "GBP",
      "address": "2MzCZNNDrmUB55LzdXnmdaXH2h2nJJ9EhrL",
      "notes": "Notes 2"
    },
    {
      "amount": "0.01",
      "currency": "BTC",
      "address": "2NC3zgngjjRWR7kbKzKYYPR2jpWh3QZHRML",
      "notes": "Notes 3"
    }
  ]
}

cryptochill_api_request('payouts', payload, 'POST').then(function (response) {
    console.log(response);
}).catch(function (error) {
    console.log(error);
});

JSON response for Create Payout endpoint:

{
  "result": {
    "id": "2f065e32-8b11-4081-b302-57f9f9dbd2e4",
    "txid": "7efa4998d0b6d62c13154e53bed0b6c5283c73ac5412ce09c2ac437be031fb9d",
    "created_at": "2019-02-11T03:04:51.113794+00:00",
    "executed_at": "2019-02-11T03:05:15.110291+00:00",
    "profile_id": "e4e197bf-486d-4f57-a064-2d047c6cafae",
    "wallet_id": "9ebdef36-71dd-4fdf-b02d-e5f836b4052f",
    "confirmations": 0,
    "status": "new",
    "network": "testnet",
    "amount": {
      "total": "0.01901596",
      "network_fee": "0.00001000"
    },
    "network_fee_pays": "merchant",
    "passthrough": "{\"user_id\": 123}",
    "recipients": [
      {
        "id": "912c9225-eb7f-4697-a5ab-7d28acfb9168",
        "address": "2N38koyyonVDAZJRV4GwnuFPxcGTymzn9HQ",
        "amount": {
          "requested": {
            "amount": "20.00000000",
            "currency": "USD"
          },
          "received": {
            "amount": "0.00546744",
            "currency": "BTC"
          }
        },
        "custom_fee": null,
        "notes": "Notes 1"
      },
      {
        "id": "d49d2ef4-6613-4870-9fcf-6becce855761",
        "address": "2MzCZNNDrmUB55LzdXnmdaXH2h2nJJ9EhrL",
        "amount": {
          "requested": {
            "amount": "10.00000000",
            "currency": "GBP"
          },
          "received": {
            "amount": "0.00353852",
            "currency": "BTC"
          }
        },
        "custom_fee": null,
        "notes": "Notes 2"
      },
      {
        "id": "b827813f-389e-457e-81c5-13cd1cf49d27",
        "address": "2NC3zgngjjRWR7kbKzKYYPR2jpWh3QZHRML",
        "amount": {
          "requested": {
            "amount": "0.01000000",
            "currency": "BTC"
          },
          "received": {
            "amount": "0.01000000",
            "currency": "BTC"
          }
        },
        "custom_fee": null,
        "notes": "Notes 3"
      }
    ]
  }
}

This endpoint creates a payout. Response is identical to Get Payout endpoint response.

HTTP Request

POST https://api.cryptochill.com/v1/payouts/

Payload Parameters

Parameter Description Required
profile_id Profile ID for wallet selection, settings and callbacks. Yes
passthrough String. Meta-data you wish to store with the payout. Will be sent alongside all callbacks associated with the payout. No
recipients Array/list of recipient objects. Yes
network_fee_pays Who pays network fee. Available values: merchant (default) or recipient. In case of recipient value network fee will be deducted from first recipient. No

Recipient Object Parameters

Parameter Description Required
amount Quoted decimal payment amount. Yes
currency Currency for the specified payment amount. Available values: USD, BTC, EUR, GBP, AUD, CHF. Yes
address Address of the recipient. Yes
fee_amount Custom fee amount that will be deducted from "received" amount. No
fee_currency Custom fee currency. Available values: BTC No

Payout Statuses

Status Description
draft Either payout was created manually in the app and is not yet approved or payout was made by an API, but the payout amount was larger than "Max Payout" value for current API key - in such case requires manual approval in the app.
new Payout is just created and is awaiting further processing.
pending Payout transaction is broadcast on the Bitcoin network (0 confirmations).
confirmed Payout transaction is included in the first block (1 confirmation).
complete Payout transaction has 6+ confirmations.
invalid Payout transaction haven't been confirmed for more than hour. If it gets's confirmed later, status will be updated to "Confirmed".

Payout Callbacks

Callbacks provide same exact response format as in Get Payout API endpoint in result field plus three extra fields specified in Callbacks Documentation.

You can view history of callbacks (if any) in CryptoChill in Payout detail view.

Payout Callback Statuses

Status Description
payout_pending Payment transaction is broadcast on the Bitcoin network (0 confirmations).
payout_confirmed Payout transaction is included in the first block (1 confirmation).
payout_complete Payout transaction has 6+ confirmations.
payout_failed Payout has failed.

Profiles

Profiles define which wallet will be used for address generation and to which callback URL related events should be sent.

List Profiles

profiles = cryptochill_api_request('profiles')

cryptochill_api_request('profiles').then(function (response) {
    console.log(response);
}).catch(function (error) {
    console.log(error);
});

The above command returns JSON structured like this:

{ 
  "result": [
    {
      "id": "<id>",
      "name": "Production"
    },
    {
      "id": "<id>",
      "name": "Testnet"
    }
  ]
}

This endpoint retrieves all profiles.

HTTP Request

GET https://api.cryptochill.com/v1/profiles/

Get Profile

profiles = cryptochill_api_request('profiles/123')

cryptochill_api_request('profiles/123').then(function (response) {
    console.log(response);
}).catch(function (error) {
    console.log(error);
});

The above command returns JSON structured like this:

{ 
  "result": {
    "id": "<id>",
    "name": "Production"
  }
}

This endpoint retrieves a specific profile.

HTTP Request

GET https://api.cryptochill.com/v1/profiles/<ID>/

URL Parameters

Parameter Description
ID The ID of the profile to retrieve

Exchange Rates

Get latest exchange rates between fiat and cryptocurrencies.

List Rates

rates = cryptochill_api_request('exchange-rates')

cryptochill_api_request('exchange-rates').then(function (response) {
    console.log(response);
}).catch(function (error) {
    console.log(error);
});

The above command returns JSON structured like this:

{
  "result": [
    {
      "id": "united-states-dollar",
      "kind": "fiat",
      "symbol": "USD",
      "rate_usd": "1",
      "rate_btc": "0.000292111117128",
      "sign": "$"
    },
    {
      "id": "euro",
      "kind": "fiat",
      "symbol": "EUR",
      "rate_usd": "1.1424784928423721",
      "rate_btc": "2996.4282380088874310",
      "sign": "€"
    },
    {
      "id": "bitcoin",
      "kind": "crypto",
      "symbol": "BTC",
      "rate_usd": "3423.3548172707183421",
      "rate_btc": "1",
      "sign": "₿"
    }
  ]
}

Get all exchange rates:

HTTP Request

GET https://api.cryptochill.com/v1/exchange-rates/

Get Rate

Get exchange rate for specific fiat currency only. 

rates = cryptochill_api_request('exchange-rates/EUR')

cryptochill_api_request('exchange-rates/EUR').then(function (response) {
    console.log(response);
}).catch(function (error) {
    console.log(error);
});

The above command returns JSON structured like this:

{
  "result": {
    "id": "euro",
    "kind": "fiat",
    "symbol": "EUR",
    "rate_usd": "1.1424784928423721",
    "rate_btc": "2996.4282380088874310",
    "sign": "€"
  }
}

HTTP Request

GET https://api.cryptochill.com/v1/exchange-rates/<SYMBOL>/

URL Parameters

Parameter Description
SYMBOL Symbol of the currency to retrieve

Callbacks

Callbacks are POST (as JSON encoded request body) requests made by CryptoChill to URL endpoint specified in Profile that was used for related invoice creation.

Callback expects HTTP 200 OK success status response code. For any other status code or timeout it will try to reach endpoint again with exponential time increase between retries. If after 72 hours endpoint will be still unreachable callback sender will stop trying.

You can view history of callbacks in CryptoChill app under every instance that have callbacks.

Callbacks Verification

import hashlib
import hmac
import json

# You will find your callback token under Settings
CALLBACK_TOKEN = 'your_callback_token'

# You can reuse same method used in API auth signature generation
def encode_hmac(key, msg, digestmod=hashlib.sha256):
    return hmac.new(key.encode(), msg=msg, digestmod=digestmod).hexdigest()

# Decode request json body
payload = json.loads(request.body)

# Get signature and callback_id fields from provided data
signature = payload['signature']
callback_id = payload['callback_id']

# Compare signatures
is_valid = signature == encode_hmac(CALLBACK_TOKEN, callback_id.encode())
assert is_valid, 'Failed to verify CryptoChill callback signature.'

# Debug callback data
print(json.dumps(payload, indent=2))

const Base64 = require('js-base64').Base64;
const crypto = require('crypto');

// You will find your callback token under Settings
const CALLBACK_TOKEN = 'your_callback_token';

// You can reuse same method used in API auth signature generation
function encode_hmac(key, msg) {
    return crypto.createHmac('sha256', key).update(msg).digest('hex');
}

// Decode request json body
var payload = JSON.parse(request.body);

// Get signature and callback_id fields from provided data
const signature = payload['signature'];
const callback_id = payload['callback_id'];

// Compare signatures
const is_valid = signature === encode_hmac(CALLBACK_TOKEN, callback_id);
if(!is_valid) {
    throw new Error('Failed to verify CryptoChill callback signature.');
}

// Debug callback data
console.log(payload);

To verify callback and make sure it really comes from CryptoPanic you must use Callback Token which you can find in CryptoChill app under Settings > API Keys.

Always verify if signature provided in callback POST data matches the one you generate on your own by signing callback_id value with callback_token using following hashing algorithm:

signature = hex(HMAC_SHA256(<callback_id>, key=<callback_token>))

Callbacks Response

All callbacks have these fields in common:

Key Meaning
callback_id Unique callback ID. If callback fails to reach endpoint, it will retry with the same ID.
callback_status Callback status identifying specific event.
signature CryptoChill signature for verification.

For event specific response documentation see Callback section under specific endpoint.

Errors

Error payload

Example of error response:

{
    "result": "error",
    "reason": "ObjectNotFound",
    "message": "Object by specified ID not found"
}

In the event of an error, a non-200 error code will be returned, and the response body will be a json object with three fields:

  1. result – which will always be "error".
  2. reason – which will be one of the string constants.
  3. message – a human-readable string with additional error information.

HTTP error codes

Error Code Meaning
400 Bad Request – Your request is invalid.
401 Unauthorized – Your API key or signature is wrong.
403 Forbidden – The kitten requested is hidden for administrators only.
404 Not Found – The specified page could not be found.
405 Method Not Allowed – You tried to access endpoint with an invalid method.
500 Internal Server Error – We had a problem with our server.
503 Service Unavailable – We're temporarily offline for maintenance.
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