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Make my first API callSign up, find your sandbox tenant, and run your first request in curl, Node, or Python.Browse all endpointsLive OpenAPI reference — every /v1/* route, scope contract, and response envelope.OAuth flow walkthroughAuthorization Code + PKCE end to end. When to use OAuth vs API keys, with copy-paste code.Receive webhooksThe 20 events you can subscribe to, signature verification, and retry semantics.Understand errorsThe 13 error codes /v1/* can return, what triggers each, and how to fix them.What's newChangelog of API changes. SemVer-minor for additive; SemVer-major for breaking.