Query Streams vs Stardog
Query Streams
querystreams.com
Stardog
stardog.comSide by side
| Figure | Query Streams | Stardog |
|---|---|---|
| Price from | $15/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 4 | 5 |
| Spec score · Data Virtualization Software | 9.1 (#1) | 8.4 (#7) |
| Company headquarters | LinkedIn lists the headquarters as Memphis, Tennessee, United States. | The current LinkedIn company profile lists headquarters in New York, New York, while Stardog’s own footer lists an Arlington, Virginia address. |
| Connectors | The connector directory lists 53 sources, including 11 database engines, 27 hosted or managed services, 8 business APIs, and 7 file and folder types. | Stardog connects to more than 80 enterprise sources and offers a generic REST connector for bespoke applications. |
| Documentation depth | The documentation includes step-by-step Windows, macOS and Linux installation, troubleshooting, connector setup and MCP connection guides. | Official documentation includes administration, querying, virtualization, inference, constraints, tutorials, API references, examples and application-building guidance. |
| Founded | LinkedIn lists Query Streams as founded in 2025. | 2006 |
| License | The service and Agent are proprietary commercial software licensed for internal business use; the terms prohibit copying, modification, reverse engineering and redistribution. | Stardog Free is proprietary, licensed software and the pricing FAQ explicitly says it is not open source. |
| Purpose | Query Streams provides governed access to databases and APIs for spreadsheets, AI clients, apps, and scheduled data syncs through an outbound-only Network Agent. | Stardog connects enterprise data into a semantic layer for AI, analytics, search, and applications. |
| Support | The site provides a contact form for questions and links to its documentation archive. | Enterprise licenses include base support, a dedicated Customer Success representative, and access to Solutions Architects. |
| What it does | Query Streams runs governed live SQL against databases and APIs and delivers results to spreadsheets, AI clients, REST endpoints and scheduled destinations. | Stardog is a semantic AI and enterprise knowledge-graph platform that unifies data and adds business context for analytics, applications and AI. |
Plans
Query Streams
- FreeFree
- Personal Core$15 a month
- Personal Plus$30 a month
- Business Core$50 a month
Stardog
- Stardog Cloud FreeFree
- Stardog FreeFree
- Stardog FreeFree
- Stardog Cloud EnterprisePriced on request
- Stardog EnterprisePriced on request
In their own words
Query Streams
Query Streams gives spreadsheets, AI clients, apps, and scheduled syncs governed access to databases and APIs through an outbound-only Network Agent. Nova AI accepts plain-English questions, reads a database schema, runs read-only SQL, and returns metrics, tables, and charts. A hosted MCP server connects sources to Claude, Cursor, ChatGPT, and Grok using a revocable key. Excel and Google Sheets add-ins run shared saved queries and stream live results into cells without exposing SQL to recipients. Federated queries join data from multiple databases and API sources in one SQL statement. Scheduled results can be sent to supported services as often as every five minutes. The Network Agent makes an encrypted outbound connection, needs no inbound ports or VPN, restricts queries to SELECT, WITH, and EXPLAIN, and keeps database credentials on the user's network. The Free tier is free and includes 5 MB/month query traffic; paid plans start at $15 a month. New accounts receive a 30-day trial with every feature unlocked and no credit card.