"Papers With Code" matching MCP connectors:

Stateless NMI + cosine fusion with entropy-driven alpha calibration

Data Oil

tech.dataoil.sandbox

Data Oil is a multi-model database built for object storage. It uses a log-structured storage engine, snapshot isolation with optimistic commit, and a change feed from the write-ahead log. Its SQL dialect supports joins, window functions, CTEs, set operations, graph traversal and pattern matching. It has its own HNSW vector index and BM25 full-text index, and a write is searchable by keyword and vector as soon as it commits. Access is over HTTP, the PostgreSQL wire protocol (extended protocol),

Remote ChromaDB vector database MCP server with streamable HTTP transport

Hosted Upstash MCP server: Redis, QStash, Workflow, Vector, Search, Box and Blob, with OAuth.

Xata MCP server lets AI agents interact with your Xata projects, and Postgres database branches.