21yield API Documentation
API 4.2.0REST & JSONBearer authenticationSandbox environment
What would you like to build?
All guidesBuild your payload
Explore field rules and ready-to-use examples for each business category.
Four event categoriesIngest in batches
Send same-category events together, inspect results, and retry safely.
Up to 100 events per batchRead your data
Retrieve records, list business IDs, and navigate paginated responses.
Tenant-scoped retrievalKeep systems in sync
Reconcile local records using compact state and version-2 content hashes.
Deliberate reconciliationYour environments
Copy a base URL. No request is sent.Sandbox
https://sandbox.api.21yield.comProduction
https://api.21yield.comCheck your payload before you send it.
Local validation, helpful field errors, and an API rounding preview. Your JSON stays in your browser.