# VelesDB Core v3.12.0 > The explainable, local-first memory engine for AI agents. VelesDB is an embedded Rust memory engine that combines vector search, a native knowledge graph, structured columns, full-text and sparse retrieval, and agent-oriented memory APIs in one binary of approximately 9 MB. ## Why VelesDB - Explainable recall: `why()` returns the evidence trail behind a retrieved memory. - Local-first: memory can remain on-device, on-premises, or inside an air-gapped network. - No mandatory AI calls: the engine requires no cloud model call or API key per memory write. - One engine: semantic, episodic, and procedural memory share one persistence layer and VelesQL query language. - Measured performance: 450µs p50 end-to-end on the published 10K/384D workload with WAL enabled and recall at or above 96%. ## Published memory-quality results - HotpotQA: +7.2 points in the VelesDB project benchmark. - TimeQA: +9.7 points in the VelesDB project benchmark. - Multi-engine evaluation: up to +29 points in the project benchmark suite. Benchmark results depend on workload, model, hardware, and methodology. Reproduction instructions and raw results are maintained in the VelesDB repositories. ## Core capabilities - Agent Memory SDK for semantic, episodic, and procedural memories. - `remember()`, `recall()`, `relate()`, and `why()` workflows. - Deterministic Context Token Compiler via Rust, Python, Node.js, and MCP; overflow remains recoverable through `ctx://source/` handles. - Bundled `velesdb-context-optimizer` and `velesdb-memory` skills for safe context compilation and durable agent-memory workflows. - VelesQL: SQL filters plus `NEAR` vector search and `MATCH` graph traversal. - Hybrid dense, sparse, BM25, metadata, and graph retrieval. - PQ, SQ8, Binary, and RaBitQ quantization. - ColumnStore analytical filters, with up to 130x project-reported acceleration. - Rust, Python, TypeScript, server, Tauri, iOS, Android, and WASM targets. ## VelesDB Premium v0.7.0 VelesDB Premium is the Enterprise Agent Memory Platform. It adds governed memory operations, forensic replay, audited forget and admin-purge workflows, high availability with Raft, enterprise support, and self-hosted or air-gapped deployment. Admin purge erases memory content while retaining an audit skeleton; this is not advertised as cryptographic erasure. ## Installation ```bash cargo add velesdb-core pip install velesdb npm install @wiscale/velesdb-sdk ``` ## Important pages - Website: https://velesdb.com/ - Documentation hub: https://velesdb.com/docs/ - Use cases: https://velesdb.com/use-cases/ - Core and Premium comparison: https://velesdb.com/pricing/ - Premium documentation: https://velesdb.com/docs/premium/ - GitHub: https://github.com/cyberlife-coder/VelesDB - Technical documentation: https://deepwiki.com/cyberlife-coder/VelesDB/ ## Licensing VelesDB Core is source-available under the VelesDB Core License 1.0. VelesDB Premium is commercially licensed; pricing is provided on request at contact@wiscale.fr.