BenoStreamDB Model Context Protocol (MCP) Server
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# BenoStreamDB Model Context Protocol (MCP) Server [](https://crates.io/crates/benostreamdb-mcp) [](LICENSE) `benostreamdb-mcp` is a high-performance Rust server implementing the open [Model Context Protocol (MCP)](https://modelcontextprotocol.io/) for **BenoStreamDB**. It exposes analytical streaming SQL, vector similarity search, reciprocal rank fusion (RRF) hybrid search, GraphRAG topological traversals, multi-modal ingestion (PDF, Excel, images, code, text), long-term agent memory, and live change data capture (CDC) directly to autonomous AI agents and IDEs (including Claude Desktop, Cursor, Antigravity IDE, and custom agentic frameworks) over standard input/output (stdio JSON-RPC). --- ## Key Capabilities - **Analytical Streaming SQL**: Powered by Apache DataFusion with native SIMD-accelerated execution. - **pgvector-Compatible Vector UDFs**: `vector_distance`, `l2_distance`, `cosine_distance`, and `inner_product` over `Vec<f32>` and stringified vector columns. - **Hybrid Search (BM25 + Dense Vectors)**: Reciprocal Rank Fusion (RRF) combining keyword BM25 retrieval with vector similarity. - **GraphRAG Search**: Simultaneous vector search and multi-hop CSR graph traversals for connected knowledge graphs. - **Persistent Long-Term Agent Memory**: `store_memory` and `recall_memory` tools with automated embedding generation, metadata tagging, and similarity scoring. - **Multi-Modal Document & Asset Ingestion**: - **PDF Documents** (`.pdf`): In-memory full-text extraction via `pdf-extract` with line-bounded semantic chunking. - **Excel & Spreadsheets** (`.xlsx`, `.xls`, `.xlsb`, `.ods`): Pure-Rust workbook parsing via `calamine` with automatic schema inference, sheet & row tracking, and typed columns. - **Multimodal Images** (`.png`, `.jpg`, `.jpeg`, `.webp`, `.gif`, `.svg`): Byte conversion to base64 Data URIs (`data:im…
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