Open documentation for the Connected Services Framework. Use the search box above or browse the sections below. OverviewConnected Services Framework (CSF)Part 1 — Framework1. Introduction2. Background3. Principles and Requirements4. Architecture Overview5. CP Registry, Master Registry, and Directory6. Security Overview7. Onboarding8. RCPID Management9. Operational Excellence10. GovernanceGlossaryPart 2 — Implementation1. Getting Started2. OAuth 2.0 Implementation3. PKI and DKIM Message Signing4. Message API (Letterbox)5. CP Registry API6. TOTSCo Integration7. CP Transitions8. Commercial Scenarios9. OperationsAppendix: OpenAPI SpecificationStandalone DocumentsCP Rights CharterCSF Message Delivery PolicyDefinitions and TerminologyMAP Onboarding & Testing ProcessFAQ — GPLB Steering GroupTAG Steering Group — Guidelines for ConductTAG Steering Group — Terms of ReferenceFAQ — TOTSCo IntegrationTOTSCo HMAP Integration Guide — joining the CSF as a Hub MAP