# Nexus Assurance developer documentation > Public integration guidance. Check availability before using an operation. Human sign-off remains a human action. ## Guides - [Developer quickstart](https://assurance.nexusregen.com/developers/markdown/quickstart): Plan your first connection, choose the right records, and understand what a successful request proves. - [How Assurance records fit together](https://assurance.nexusregen.com/developers/markdown/concepts): Organisations, projects, locations, movements, loads, and the evidence that connects them. - [Integration downloads](https://assurance.nexusregen.com/developers/markdown/tools): Install verified client and CLI archives, verify their checksums, and use only the currently deployed beta operations. - [Integrate with a coding agent](https://assurance.nexusregen.com/developers/markdown/agents): Give your developer or coding agent the same public contract and preserve human decisions. - [Availability and changes](https://assurance.nexusregen.com/developers/markdown/changelog): Check the current beta’s limits before designing a production dependency. - [Troubleshooting and support](https://assurance.nexusregen.com/developers/markdown/support): Collect useful connection context without sharing keys or customer documents. ## Reference - [Capabilities](https://assurance.nexusregen.com/developers/capabilities.json): Deployed contract version, documented operations, and explicit workflow availability. - [OpenAPI](https://assurance.nexusregen.com/api/openapi.json): Current beta contract; endpoint registration does not establish event delivery. - [Integration kit](https://assurance.nexusregen.com/developers/downloads/nexus-assurance-integration-kit-0.1.0-beta.0.tgz): MIT-licensed 17-operation Postman collection, environment template, portable SKILL.md, help, examples, fixture, and provenance manifest. Verify its adjacent SHA-256 file before extracting.