xerj

xerj is an MCP server for Claude Code from xerj-org/xerj. Its token cost is not measured, scanned A, original, Apache-2.0.

An MCP server configuration for connecting an agent to the xerj search service. MCP, or Model Context Protocol, is a standard way for an AI agent to call an external tool.

In plain words
What is it for?
It is for starting xerj in MCP mode and configuring the address of the local xerj service.
Why use it?
Without this configuration, the agent does not have the specified command and service address needed to use xerj through MCP. It provides the launch command and URL setting.

MCP server for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: listed in a Claude config.

Part of the xerj plugin — 1 MCP server shipped together

Good fit It is for starting xerj in MCP mode and configuring the address of the local xerj service.

Compare 6 mcp servers from other repositories ↓
Install with agentmods
npx agentmods add mcp/xerj-org/xerj/xerj-xerj

Installing this writes the configuration, not the program: `xerj` has to be on your PATH already, or the server will not start.

About the project

XERJ is a local search tool that automatically indexes folders so coding agents can retrieve relevant code, documents, logs, and PDFs without reading files one at a time. It is for developers and agents using code search, retrieval-augmented generation, security audits, or agent memory.

xerj-org/xerj · 15,574 stars · on GitHub · xerj.org

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.

Clone the repo
git clone --depth 1 https://github.com/xerj-org/xerj

Installing this writes the configuration, not the program: `xerj` has to be on your PATH already, or the server will not start.

Made for: Claude Code.

Or install xerj, the plugin that ships this one along with the rest of its 1 MCP server.

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 xerj

README.md
[![agentmods](https://agentmods.dev/badge/mcp/xerj-org/xerj/xerj-xerj/github.svg)](https://agentmods.dev/mcp/xerj-org/xerj/xerj-xerj)
Your own site
<a href="https://agentmods.dev/mcp/xerj-org/xerj/xerj-xerj"><img src="https://agentmods.dev/badge/mcp/xerj-org/xerj/xerj-xerj/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for xerj

Your own site · 80×15
<a href="https://agentmods.dev/mcp/xerj-org/xerj/xerj-xerj"><img src="https://agentmods.dev/badge/mcp/xerj-org/xerj/xerj-xerj.svg" alt="Reviewed on agentmods" width="80" 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. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

xerj 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 yesterday.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • xerj — 86% identical, 2 lines differ
plugins/xerj/.mcp.json · 11 lines

What it actually says

{
  "xerj": {
    "command": "xerj",
    "args": [
      "mcp"
    ],
    "env": {
      "XERJ_URL": "${XERJ_URL:-http://localhost:9200}"
    }
  }
}
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. yesterday First seen · 11 lines scan A a25552758ace

Subscribe to this mod's changes

xerj is an MCP server published in the GitHub repository xerj-org/xerj (15,574 stars, last pushed today), licensed Apache-2.0. 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 2026-10-25.