Create a contact property (Resend path)

POST/contact-properties

Types: string, number, boolean, date. The key and type are fixed once created.

Authorization

apiKey

AuthorizationBearer <token>

A project API key: Authorization: Bearer s0_…

In: header

application/json

TypeScript Definitions

Use the request body type in TypeScript.

key*string

Match^[A-Za-z][A-Za-z0-9_]{0,63}$

type*string

Value in

label?string

Length1 <= length <= 256

description?string

Lengthlength <= 2000

fallback_value?|number|boolean|null

curl -X POST "https://example.com/contact-properties" \  -H "Content-Type: application/json" \  -d '{    "key": "string",    "type": "string"  }'

{  "object": "contact_property",  "id": "string"}