Juno ERP MCP Client

A modular Model Context Protocol (MCP) server for interacting with MGMU Juno ERP. It exposes both student (own data) and employee (university-wide management) capabilities as tools for use with LLMs (like Claude).

🚀 Features

• Student tools: profile, academic info, attendance (+ graph), fees, admission, exam results, schedule, courses, search.

• Employee tools: university-wide search and the full student-management dashboard (personal info, academics, fees, attendance/marks graphs, exams, transfers, hostel, library, placement, grievances, leave, and more) — looked up by studentId.

• Profile-image proxy: search_university rewrites profile-picture URLs to this server, which streams the authenticated image back so the AI panel can render it directly.

• Optional proxy: route ERP traffic through an HTTP/HTTPS/SOCKS proxy, or auto-pick a free one.

Related MCP server: MUSTer MCP Server

🛠️ Setup

1. Install Dependencies:

   npm install

2. Configure Environment: copy .env.example to .env and fill it in.

   cp .env.example .env

   • Student account: STUDENT_EMAIL / STUDENT_PASSWORD (legacy email / password still work).

   • Employee account: EMPLOYEE_EMAIL / EMPLOYEE_PASSWORD — required for the employee tools and the image proxy.

   • PUBLIC_URL: the externally reachable base URL of this server (used to build image links). Defaults to http://localhost:<PORT>.

   • Proxy (optional): set PROXY_URL, or PROXY_USE_RANDOM=true to auto-pick a free one. No proxy is used unless configured.

3. Build:

   npm run build

🏃 Running the Server

npm run dev            # live development
# or
npm run build && npm start

The MCP endpoint is http://localhost:8987/mcp. Health check at /health.

🖼️ Profile-image proxy

search_university returns each hit with its imageUrl rewritten to:

<PUBLIC_URL>/img/getStudentProfileImageById.json?id=<id>
<PUBLIC_URL>/img/getEmployeeProfileImageById.json?id=<id>

Requesting that URL makes the server fetch the image from the ERP using the logged-in employee session and stream it back, so the AI can display it without its own credentials. Only the two known profile-image endpoints are proxied (it is not an open proxy).

🐳 Docker Support

The image is published to GHCR: ghcr.io/danish-mar/juno-mcp:master.

docker-compose up -d --build
docker logs -f juno-mcp
docker-compose down

This depends on juno-erp-client@^1.1.0 from npm, so the Docker build's npm install resolves it from the registry with no extra setup.

🧰 Available Tools

Student (logged-in student's own data)

get_profile, get_academic_info, get_admission_details, get_remaining_fees, get_fees_structure, get_attendance_details, get_attendance_graph, get_exam_details, get_student_results, get_today_schedule, get_courses_for_term, search_student

Employee (staff account)

• search_university — search all students/staff; profile images are proxied.

• Per-student lookups (take a studentId): get_student_personal_information, get_student_academic_info, get_student_admission_details, get_student_fees_details, get_student_fee_structure, get_student_receivable, get_student_attendance_details, get_student_attendance_graph, get_student_marks_graph, get_student_clinical_attendance_analysis, get_student_exam_details, get_student_transfer_details, get_student_transfer_history, get_student_event_details, get_student_grievances, get_student_library_details, get_student_placement_details, get_student_hostel_details, get_student_course_file_details, get_student_leave_history

🔒 Security

• Credentials are loaded from .env (gitignored), never hardcoded.

• Sessions are kept in memory per role and refreshed automatically on expiry.

• The image proxy is restricted to the two ERP profile-image endpoints.

📄 License

ISC