mcp-server-clerk: Instructions file for Claude Code

CLAUDE.md

mcp-server-clerk CLAUDE.md is an instructions file for Claude Code from BalajiSriraman/mcp-server-clerk. It costs 3,286 tokens per session, scanned A, original, MIT.

Project instructions for a Clerk MCP server, which lets AI assistants call Clerk’s user and organization management API. They describe the project’s Nuxt 3 setup, structure, and main design ideas.

In plain words
What is it for?
Working on the Clerk MCP server: understanding its tools, middleware, API connection, project structure, and TypeScript or Nuxt code.
Why use it?
They give an AI coding assistant the project context needed to understand and change the code consistently. This reduces time spent working out the technology stack and file layout.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md.

This is BalajiSriraman/mcp-server-clerk's own configuration. It tells Claude Code how to work on mcp-server-clerk itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything mcp-server-clerk configures →

Reuse

Borrowing it

Nothing to install: this file belongs to BalajiSriraman/mcp-server-clerk. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/BalajiSriraman/mcp-server-clerk/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/BalajiSriraman/mcp-server-clerk

Made for: Claude Code.

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README.md
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Per session 3,286 This file is loaded in full into every session.
When invoked 3,286 The same file — it is already loaded in full.
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.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.03286 $0.03286
Opus 5 $0.01643 $0.01643
Sonnet 5 $0.00657 $0.00657
Haiku 4.5 $0.00329 $0.00329

Measured 10d ago against content hash 313382ab478c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

mcp-server-clerk CLAUDE.md 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 10d 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.

CLAUDE.md · 275 lines

How it starts

The opening of the file, as written. The whole thing — 275 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md — Clerk MCP Server

Project Overview

This is a Model Context Protocol (MCP) server for Clerk, built with Nuxt 3 and the @nuxtjs/mcp-toolkit module. It exposes Clerk's Backend API (organizations, users, memberships, invitations, metadata) as MCP tools that AI assistants (Claude, Cursor, VS Code Copilot, Windsurf) can call.

The MCP endpoint is served at /mcp by the Nuxt dev server.

Tech Stack

Dependency Role Version
nuxt Full-stack Vue framework (Nitro server engine) ^3.17
@nuxtjs/mcp-toolkit Nuxt module — auto-discovers MCP tools/resources/prompts in server/mcp/ ^0.5
@clerk/backend Clerk Backend SDK — server-side API client ^2.30
zod Schema validation for MCP tool input parameters ^4.0
typescript Type checking ^5.7
vue / vue-router Frontend (minimal — just a landing page) ^3.5 / ^4.5

Project Structure

clerk-mcp-server/
├── server/
│   ├── middleware/
│   │   └── clerk-key.ts                    # Extracts X-Clerk-Secret-Key header (public mode)
│   ├── mcp/
│   │   └── tools/                          # MCP tools (auto-discovered by @nuxtjs/mcp-toolkit)
│   │       ├── clerk-list-organizations.ts
│   │       ├── clerk-get-organization.ts
│   │       ├── clerk-create-organization.ts
│   │       ├── clerk-update-organization-metadata.ts
│   │       ├── clerk-list-organization-members.ts
│   │       ├── clerk-update-member-role.ts
│   │       ├── clerk-update-member-metadata.ts
│   │       ├── clerk-list-organization-invitations.ts
│   │       ├── clerk-delete-organization.ts
│   │       ├── clerk-create-invitation.ts
│   │       ├── clerk-remove-member.ts
│   │       ├── clerk-list-users.ts
│   │       ├── clerk-get-user.ts
│   │       └── clerk-update-user-metadata.ts
│   ├── api/
│   │   └── health.get.ts                   # GET /api/health — readiness probe
│   └── utils/
│       └── clerk.ts                        # Clerk client (dual-mode) + helpers
├── docs/
│   └── USAGE.md                            # Full usage guide for both modes
├── app.vue                                 # Landing page (lists available tools)
├── nuxt.config.ts                          # Nuxt config (modules, runtimeConfig, asyncContext)
├── Dockerfile                              # Multi-stage production Docker build
├── docker-compose.yml                      # Both hosted and public mode services
├── .dockerignore
├── tsconfig.json                           # Extends .nuxt/tsconfig.json
├── package.json
├── package-lock.json
├── .env.example                            # Template for CLERK_SECRET_KEY
├── .github/
│   └── workflows/
│       └── ci.yml                          # GitHub Actions: lint, typecheck, build
├── eslint.config.mjs                       # ESLint flat config (via @nuxt/eslint)
├── .gitignore
├── README.md
└── CLAUDE.md                               # This file

Read the full file on GitHub · 275 lines

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. 10d ago First seen · 275 lines · 3,286 tokens per session scan A 313382ab478c

Subscribe to this mod's changes

mcp-server-clerk CLAUDE.md is an instructions file published in the GitHub repository BalajiSriraman/mcp-server-clerk (2 stars, last pushed 6mo ago), licensed MIT. It adds 3,286 tokens to every session, about $0.0164 per session on Opus 5. 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.

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