I built a vector database API on Cloudflare

In plain words

This is a vector database API built on Cloudflare's infrastructure. It's designed for developers who need to store and query vector embeddings as part of their applications. The tool leverages Cloudflare's edge network to provide distributed vector database functionality, making it suitable for developers building AI-powered features or semantic search capabilities. The source code is available on GitHub for inspection and contribution.

written from the facts on this page · September 2026

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  Actian VectorAI DBApr 2026 · actian.com · ▲203

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  HelixDB – Open-source vector-graph database for AI applications (Rust)2025 · github.com · ▲237

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  Epsilla – Open-source vector database with low query latency2023 · github.com · ▲111

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  Lantern – a PostgreSQL vector database for building AI applications2023 · docs.lantern.dev · ▲196

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  HelixDB – A graph database built on object storageJun 2026 · github.com · ▲159

  Hey HN, it’s been just over a year since we launched HelixDB (https://news.ycombinator.com/item?id=43975423), a project a friend and I started in college. It’s an OLTP graph database built on object-storage, with native vector search and full-text search (FTS). Why graph, vector and FTS? Graph databases provide a natural cognitive model for data, vectors allow for a semantic understanding of the entities and relationships in the graph, and FTS provides more specific filtering. Many AI-driven applications attempt to combine all of these functionalities by stitching together…

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  VectorLiteDB – a vector DB for local dev, like SQLite but for vectors2025 · github.com · ▲13

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