Developer Platform

Developer documentation and console routes are owned by CI4 during migration.

Health Capabilities Version Schema OpenAPI

CRM API Contract

Authentication

Requests are signed with HMAC headers, timestamps and idempotency keys.

X-Quardlyn-Signature
X-Quardlyn-Timestamp
Idempotency-Key

Property Events

The contract covers create, update, status and delete lifecycle events.

property.create
property.update
property.status
property.delete

Branch Safety

CRM integrations must be authorised to the correct branch and source scope before property writes are accepted.

Downloads and Test Assets

Download the current CI4 CRM contract, schemas and examples. SDK package downloads remain unavailable until package artifacts are migrated.

OpenAPI YAML OpenAPI JSON Postman Collection Postman Environment Canonical schema Markdown Canonical schema PDF Sale example Lettings example Commercial example Webhook schema

Migration Status

This CI4 developer portal is read-only while migration parity is completed. Schema and OpenAPI documents are available now; console actions fail closed without account, application or property changes.