Rich JSON codec — tagged, reversible serialization of Date, BigInt, Map, Set, undefined, Error, and custom types through JSON.stringify/parse

TypeScript bindings for the Soroban Custom Types example contract

Transform custom types into JSON-compatible data.

The boundary codec for SignalX — how Date, Map, Set, BigInt and custom types survive every server↔client boundary: the SSR state blob, resume boundary props, the cache seed, and the server-function RPC wire

the complete solution for node.js command-line programs

Custom types library

A JSON registry for custom types

custom types for AvN

Custom GraphQL Types

Run time type validation, transformation, and error generator that works out of the box on primitives, objects, arrays, and nested objects. Also extensible for custom types.

Plugin based architecture that supports module loading, custom types, registries, scopes, and more.

xtypejs Extension - Custom Types

A lightweight, extensible JSON encoder and decoder that supports custom types.

Value validation for common and custom types.

Value validation for common and custom types.

Custom types

Custom types and interfaces for the IBM COS SDK

Serialize custom types in JSON with tagged strings.

> :warning: This tool currently only generates custom types for page objects. For custom commands you will need to implement the type yourself.

Compose custom types containing multiple mutually exclusive type.