The Payable API runs in a dual mode offering our customers a unique experience to either play around in a Test mode or run their business through Live mode. This feature is available through the Authentication process.
For OAuth2 integration, the authenticated users would have a flag associated with their token, which is controllable via the Payable Dashboard.
For API keys, our customer would have to use the "live_" prefixed API key to operate in the live mode and the "test_" API key to operate under the test mode.
We do have shared resources between the two modes.