Appendix

Reference tables that apply across the API.

Glossary

Term	Description
`apiKey`	Public credential, sent in every API request URL.
`apiSecret`	Private signing key. Never expose publicly.
`executionId`	Unique workflow execution identifier.
`callbackKey`	Identifies a node waiting for input. Drives idempotency.
`requestId`	Per-call tracking ID.
`referenceId`	Your custom tracking ID.
`domainId`	Business-unit identifier, sent in `x-domain` header.
`nodeType`	Workflow node type. Determines which API to call.
`crpPid`	Connected Related Party identifier (KYB).
JSON string field	Field expecting a JSON-encoded string, not a nested object.

Execution statuses

Status	Terminal	Description
`CREATED`	No	Created, not yet started
`RUNNING`	No	Currently executing
`WAITING`	No	Waiting for external input
`COMPLETED`	Yes	Successfully completed
`FAILED`	Yes	Execution failed
`TIMEOUT`	Yes	Execution timed out
`CANCELLED`	Yes	Execution cancelled

Event types

`eventType`	Mode	Description
`KYC_EVENT`	Async	Individual customer onboarding
`KYB_EVENT`	Async	Corporate customer onboarding
`TRANSACTION_EVENT`	Sync / Async	Transaction screening
`PERIODIC_FLOW_EVENT`	Async	Continuous monitoring

Document types

Code	Description
`NATIONAL_ID`	National identity card
`INTERNATIONAL_PASSPORT`	International passport
`DRIVING_LICENCE`	Driving licence
`RESIDENCE_PERMIT`	Residence permit
`UTILITY_TELEPHONE_BILL`	Utility / telephone bill
`BANK_STATEMENT`	Bank statement
`CUSTOMER_ACCEPTANCE_FORM`	Customer acceptance form
`SELF_IMAGE`	Self-portrait / selfie

Changelog

Version	Date	Changes
1.2	2026-05-14	Web SDK: `appKey` renamed to `apiKey`; npm package renamed to `@width/web-sdk`; UMD build removed; browser minimums raised. Android: single dependency; added log forwarding. iOS: added `onnxruntime.xcframework`; added event logging.
1.1	2026-05-12	Added Web SDK guide; updated Android & iOS to v1.0.0; added per-block copy buttons.
1.0	2026-04-17	Initial release — OpenAPI, Android, iOS.