# SimpliVity (HPE OmniStack REST API) > SimpliVity is the hyperconverged infrastructure (HCI) pioneer acquired by Hewlett Packard Enterprise in 2017 and shipped as HPE SimpliVity. Its OmniStack data virtualization platform delivers built-in deduplication, compression, backup, replication, and disaster recovery for VMware and Hyper-V clusters. The programmatic surface is the HPE OmniStack REST API (v1.25), served on-appliance by the Management Virtual Appliance (MVA) and authenticated with an OAuth2 password grant issuing read/write bearer tokens. ## APIs - [HPE OmniStack REST API (Swagger)](https://github.com/HewlettPackard/hpe-simplivity-swagger): 87 operations across backups, virtual_machines, datastores, hosts, omnistack_clusters, cluster_groups, policies, external_stores, security (certificates/roles), and tasks. ## Specs - [OpenAPI/Swagger 2.0 (verbatim)](openapi/simplivity-omnistack-openapi-original.json) - [OpenAPI Overlay (AE enhancements)](overlays/simplivity-omnistack-overlay.yaml) ## Auth & conventions - [Authentication profile](authentication/simplivity-authentication.yml): OAuth2 password grant, token endpoint /api/oauth/token, Authorization: Bearer, read/write scopes, TLS 1.2+, tokens expire after 10 min inactivity / 24 h. - [OAuth scopes](scopes/simplivity-scopes.yml) - [Conventions](conventions/simplivity-conventions.yml): offset/limit pagination, task-polling async model (202 + TaskMO, getTask), no idempotency-key mechanism. - [Error catalog](errors/simplivity-problem-types.yml): standard HTTP status codes; per-task failures in TaskMO. - [Lifecycle](lifecycle/simplivity-lifecycle.yml): spec version 1.25; 3 deprecated operations flagged. - [Data model](data-model/simplivity-data-model.yml) - [Conformance](conformance/simplivity-conformance.yml) ## Agent - [MCP candidate tools](mcp/simplivity-mcp.yml) - [Agentic access contracts](agentic-access/simplivity-agentic-access.yml) - [Agent skills](skills/_index.yml) ## SDKs - Python: https://pypi.org/project/simplivity/ (pip install simplivity) - Go: https://pkg.go.dev/github.com/HewlettPackard/simplivity-go - PowerShell: https://github.com/HewlettPackard/hpe-simplivity-powershell - Ansible: https://github.com/HewlettPackard/simplivity-ansible ## Docs - [HPE SimpliVity](https://www.hpe.com/us/en/hpe-simplivity.html) - [HewlettPackard GitHub org](https://github.com/HewlettPackard)