See what you can build with SurrealDB 4

SurrealDB 4 and its Cloudflare-based serverless platform, SurrealDB Earth, launched on 3 November 2026, offering isolated databases for individual agents, users, or customers that activate on demand, scale to zero when idle, and are billed by requests and storage. Earth is available through free SurrealDB Cloud accounts and is designed for applications ranging from multitenant SaaS products to AI agents with persistent memory. SurrealDB 4 supports combined vector search, full-text search, structured filters, and graph traversal within a single transactional query, enabling agents to retrieve memories by semantic similarity, keywords, metadata, and relationships. It also adds PostgreSQL and MySQL wire-protocol support for defined subsets of each dialect, although several capabilities such as recursive CTEs, triggers, roles, certain vector features, and stored procedures remain unsupported. Planned work includes database branching, faster cold starts, and programmatic database creation, while the product is source available under the Business Source License 1.1, which restricts offering it as a third-party database service until its planned conversion to Apache License 2.0 in 2030.

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