Query Streams vs Virtuoso Universal Server
| Query Streams | Virtuoso Universal Server | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | Yes | Yes |
| Paid from | $15/mo | — |
| Open source | No | No |
| Platforms | api, Linux, macOS, self-hosted, Web, Windows | api, Linux, macOS, self-hosted, Web, Windows |
| Free plan | Yes | Yes |
| Paid from | 15 /mo | — |
| Deployment model | hybrid | hybrid |
| Source connectors | 59 | — |
| Semantic layer | No | Yes |
| Access protocols | SQL, REST API, MCP | SQL, SPARQL, XQuery, XPath, ODBC, JDBC, UDBC, OLE DB, SOAP, REST, HTTP |
| REST API access | Yes | Yes |
| Query acceleration | Yes | Yes |
Both are listed in Best Data Virtualization Software. On The Geeks Club, Query Streams scores higher on our published basis.