MARBIN · API guide
Sandbox and live
| Sandbox | Live | |
| Key | mk_sandbox_… | mk_live_… (widget: mk_pub_live_…) |
| Data | fixed sample figures on real tickers; every answer carries sandbox | the engine's real results |
| Plan | Sandbox or Trial only: free, never a paid plan | your plan, paid monthly in advance |
| Who makes it | you, in the partner portal (Make a sandbox key), or MARBIN | MARBIN, on your plan |
| Webhooks | from MARBIN's test service (livemode: false), with your test customers | livemode: true, your customers |
Build and test against the sandbox; switching to live is changing the key (and, for webhooks, the endpoint you register on the live partner portal). The endpoints, answers and errors are the same.