Listed alphabetically. A tool is ranked by its reviews once it has 3.
| Tool | Reviews | Lowest paid plan | Free plan | Free trial | Public API | Runs on | Main features |
|---|---|---|---|---|---|---|---|
 AivenYour AI-ready open source data platform | ReviewsNone yetWrite one for Aiven | Lowest paid plan$5per month, for PostgreSQLDeveloper, as of October 23, 2026 | Free planYes | Free trial30 days | Public APIYes | Runs onCLI | Main features
|
 CockroachDBRun business-critical applications in the cloud, on-premises, or hybrid, with global scale and resilience | ReviewsNone yetWrite one for CockroachDB | Lowest paid planSee plans | Free planNot confirmed | Free trial30 days | Public APIYes | Runs onCLI | Main features
|
 MotherDuckFast, serverless analytics powered by DuckDB with dedicated compute for every user and every agent. | ReviewsNone yetWrite one for MotherDuck | Lowest paid plan$250per org per month plus usageBusiness, as of October 28, 2026 | Free planYes | Free trial7 days | Public APINot confirmed | Runs onNot confirmed | Main features
|
| PineconePinecone is a fully managed vector database built for AI. | ReviewsNone yetWrite one for Pinecone | Lowest paid plan$20per month, flatBuilder, as of October 28, 2026 | Free planYes | Free trial3 weeks | Public APIYes | Runs onTerminal | Main features
|
 SingleStoreThe real-time database for AI, apps and analytics. | ReviewsNone yetWrite one for SingleStore | Lowest paid planSee plans | Free planYes | Free trialYes | Public APIYes | Runs onAzure, Google Cloud | Main features
|
 XataThe branch native Postgres platform | ReviewsNone yetWrite one for Xata | Lowest paid planSee plans | Free planNot confirmed | Free trial14 days | Public APINot confirmed | Runs onCLI | Main features
|
From each tool's own website. “Not confirmed” means we couldn't confirm it there, not that the tool doesn't have it. Each tool's page says when its facts were checked.
How this list is made
A tool is listed here only when we've confirmed on its own website that it has a free trial. Tools we couldn't confirm it for are left out, even if they may have it. Vendors can't pay for a place on this list. Add a tool we missed