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Sandbox API testing

Where an exchange provides a sandbox for risk-free integration, or end-to-end, testing CCXT provides access to these.

This document is a *light overview of configuring Freqtrade and GDAX sandbox. This can be useful to developers and trader alike as Freqtrade is quite customisable.

When testing your API connectivity, make sure to use the following URLs. Website* REST API*

Configure a Sandbox account on Gdax

Aim of this document section

  • An sanbox account
  • create 2FA (needed to create an API)
  • Add test 50BTC to account
  • Create :
    • API-KEY
    • API-Secret
    • API Password


This link will redirect to the sandbox main page to login / create account dialogues:

After registration and Email confimation you wil be redirected into your sanbox account. It is easy to verify you're in sandbox by checking the URL bar.

Enable 2Fa (a prerequisite to creating sandbox API Keys)

From within sand box site select your profile, top right.

Or as a direct link:

From the menu panel to the left of the screen select

Security: "View or Update"

In the new site select "enable authenticator" as typical google Authenticator.

  • open Google Authenticator on your phone
  • scan barcode
  • enter your generated 2fa

Enable API Access

From within sandbox select profile>api>create api-keys

or as a direct link:

Click on "create one" and ensure view and trade are "checked" and sumbit your 2FA

  • Copy and paste the Passphase into a notepade this will be needed later
  • Copy and paste the API Secret popup into a notepad this will needed later
  • Copy and paste the API Key into a notepad this will needed later

Add 50 BTC test funds

To add funds, use the web interface deposit and withdraw buttons.

To begin select 'Wallets' from the top menu.

Or as a direct link:

  • Deposits (bottom left of screen)
    • Deposit Funds Bitcoin
      • Coinbase BTC Wallet
        • Max (50 BTC)
          • Deposit

This process may be repeated for other currencies, ETH as example

Configure Freqtrade to use Gax Sandbox

The aim of this document section

  • Enable sandbox URLs in Freqtrade
  • Configure API
    • secret
    • key
    • passphrase

Sandbox URLs

Freqtrade makes use of CCXT which in turn provides a list of URLs to Freqtrade. These include ['test'] and ['api'].

  • [Test] if available will point to an Exchanges sandbox.
  • [Api] normally used, and resolves to live API target on the exchange

To make use of sandbox / test add "sandbox": true, to your config.json

  "exchange": {
        "name": "gdax",
        "sandbox": true,
        "key": "5wowfxemogxeowo;heiohgmd",
        "secret": "/ZMH1P62rCVmwefewrgcewX8nh4gob+lywxfwfxwwfxwfNsH1ySgvWCUR/w==",
        "password": "1bkjfkhfhfu6sr",
        "outdated_offset": 5
        "pair_whitelist": [

Also insert your

  • api-key (noted earlier)
  • api-secret (noted earlier)
  • password (the passphrase - noted earlier)

You should now be ready to test your sandbox

Ensure Freqtrade logs show the sandbox URL, and trades made are shown in sandbox. ** Typically the BTC/USD has the most activity in sandbox to test against.

GDAX - Old Candles problem

It is my experience that GDAX sandbox candles may be 20+- minutes out of date. This can cause trades to fail as one of Freqtrades safety checks.

To disable this check, add / change the "outdated_offset" parameter in the exchange section of your configuration to adjust for this delay. Example based on the above configuration:

  "exchange": {
        "name": "gdax",
        "sandbox": true,
        "key": "5wowfxemogxeowo;heiohgmd",
        "secret": "/ZMH1P62rCVmwefewrgcewX8nh4gob+lywxfwfxwwfxwfNsH1ySgvWCUR/w==",
        "password": "1bkjfkhfhfu6sr",
        "outdated_offset": 30
        "pair_whitelist": [