nexusdb

nexusdb is an MCP server for Claude Code, Codex, Cursor, Gemini CLI, OpenCode from xzh-net/nexusdb. Its token cost is not measured, scanned A, original, no licence file.

A lightweight database that stores data as JSON files and is designed for Python programs. JSON is a text format commonly used to represent structured data.

In plain words
What is it for?
Storing and working with JSON-based application data in Python.
Why use it?
It offers a simple way for Python code to store and retrieve structured data without a larger database system.

MCP server for Claude CodeCodexCursorGemini CLIOpenCode

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add mcp/xzh-net/nexusdb/nexusdb
Clone the repo
git clone --depth 1 https://github.com/xzh-net/nexusdb

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for nexusdb

README.md
[![agentmods](https://agentmods.dev/badge/mcp/xzh-net/nexusdb/nexusdb.svg)](https://agentmods.dev/mcp/xzh-net/nexusdb/nexusdb)
Your own site
<a href="https://agentmods.dev/mcp/xzh-net/nexusdb/nexusdb"><img src="https://agentmods.dev/badge/mcp/xzh-net/nexusdb/nexusdb.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Security

Grade A, and why

nexusdb scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

listed in the official MCP registry · 8 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 8 lines scan A 8c9ecd15f27d

Subscribe to this mod's changes

nexusdb is an MCP server published in the GitHub repository xzh-net/nexusdb (0 stars, last pushed 5d ago), with no licence file. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.