If you're looking for an Xata alternative, Neon is a good option. It's a serverless foundation for building fast, scalable and reliable applications that uses Postgres as its database. Neon supports branching, schema migrations and fast queries, and its pricing plan includes a free tier, so it can accommodate projects with varying needs.
Another good alternative is Supabase, which serves as an open-source Firebase alternative that uses a Postgres database. It also offers features like user authentication, real-time subscriptions, storage and vector embeddings, and supports frameworks like Next.js and Svelte. Supabase's pricing plan includes a generous free tier, so it's accessible to developers.
If you need a real-time data platform, SingleStore is a powerful option. It combines transactional and analytical data into one engine, with the ability to ingest high-throughput streaming data and respond with millisecond query performance. It has a free tier and usage-based pricing, so it's good for a variety of tasks, including generative AI and real-time analytics.