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JSON-first database with API and MCP interfaces

Project description

CourierDB

CourierDB is a JSON-first database with a simple HTTP API, Python SDK, and MCP interface.

Core Features

  • JSON document storage (NoSQL-style)
  • Fast LMDB-backed persistence
  • API key protection (optional)
  • Docker-ready server
  • MCP tools for agent workflows
  • Python SDK for typed CRUD access

Breaking Change

Vector and semantic features were removed.

  • Removed USearch integration
  • Removed embeddings/vectorization logic
  • Removed /v1/{collection}/search API
  • Removed SDK search(...)
  • Removed MCP courierdb_search

Getting Started

GitHub

https://github.com/RecursionAI/CourierDB

Docs

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