APIActive

Castle API Custom Parameters

Add custom user traits or event properties to Castle events for enhanced context and policy evaluation.

Open source page ↗

Field note

What it does

Custom parameters allow adding key-value pairs to event payloads, either as event properties (per event) or user traits (persisted). Supports up to 50 discovered fields, data types string/boolean/number, nested objects, and special handling for dot notation.

Capabilities

Available capabilities

User TraitsCustom Event Properties

Tags

Tags

Custom Parameters

Ways to use it

Ways to use it

No integrations filed yet.

Product features

Product features

Data Type Detection

Supports string, boolean, number, and ISO8601 timestamps.

Dot Notation

Dot in property names is treated as nested object separator.

Field Discovery Limit

Up to 50 custom fields are auto-discovered.

Nested Objects

Fields in nested objects are detected and counted individually.