cob-shopify-mcp

Production-grade MCP server and CLI tool for Shopify. Use it as an MCP server for AI agents (Claude, Cursor, Windsurf) or as a standalone CLI to manage Shopify stores directly from your terminal — no MCP required.

Features

• 49 built-in tools + 5 example custom tools across 5 domains (Products, Orders, Customers, Inventory, Analytics)
• Standalone CLI — natural domain commands from the terminal without MCP (cob-shopify products list --limit 5, orders get --id ..., etc.)
• MCP server — connect to Claude, Cursor, Windsurf, or any MCP-compatible AI agent
• 4 MCP resources (Shop info, Locations, Policies, Currencies)
• 4 MCP prompts (Health check, Sales report, Inventory risk, Support summary)
• Dual transport — stdio (default) + Streamable HTTP
• 3 auth methods — Static token, OAuth client credentials, OAuth authorization code
• Cost tracking — Every response includes Shopify API cost metadata
• Rate limiting — Respects Shopify's cost-based throttling
• Query caching — Configurable TTL per query type
• 82% less context bloat — Advertise-and-Activate mode: 1 meta-tool instead of 49 schemas, domains loaded on demand
• Config-driven — YAML config, env vars, CLI overrides
• Type-safe — Full TypeScript with Zod validation

MCP vs CLI — When to Use What

This project gives you two ways to interact with Shopify. Same tools, same engine, same auth — different interfaces.

	CLI	MCP
What it is	Direct terminal commands	Protocol for AI agents
Who it's for	Developers, scripts, CI/CD	Claude, Cursor, Windsurf, custom agents
How to use	cob-shopify products list --limit 5	AI calls tools via MCP protocol
Install via	npm install -g cob-shopify-mcp	Same npm install, then claude mcp add
Docker	Not applicable	Yes — HTTP transport for remote/multi-agent
Custom YAML tools	Auto-discovered	Auto-discovered
Output	Table (TTY), JSON when piped; --json, --fields, --jq	JSON via MCP response
Schema introspection	--schema flag on any command	Built into MCP protocol
Context window	Zero impact — no tool schemas loaded	All schemas injected — use Advertise-and-Activate for 82% reduction
Best for	Quick lookups, scripting, pipelines, CI/CD	Conversational AI, multi-step workflows

You don't have to choose — install once, use both:

# CLI — run directly from terminal
cob-shopify products list --limit 5
cob-shopify products list --limit 5 --fields id,title,status
cob-shopify orders get --id gid://shopify/Order/123 --json

# MCP — connect to Claude and let AI use the same tools
claude mcp add cob-shopify-mcp -- cob-shopify-mcp start

Advertise-and-Activate

Every MCP server on GitHub dumps all tool schemas into the AI's context on connect. With 49 tools, that's ~16,000 tokens consumed before the user even asks a question. Most conversations use 1-2 tools — 95% of those tokens are wasted.

Advertise-and-Activate fixes this. Instead of loading all 49 tool schemas, the server registers a single activate_tools meta-tool with a lightweight domain summary:

Before (default):   49 tool schemas → ~16,000 tokens per prompt
After (activate):   1 meta-tool     → ~300 tokens per prompt
On-demand:          AI activates 1 domain → +2,000-3,000 tokens only when needed

How it works:

1. Connect — AI sees 1 tool: activate_tools with a description listing all domains and their tool counts
2. Activate — AI calls activate_tools("analytics") — server dynamically registers 6 analytics tools
3. Execute — AI calls top_products as normal

Typical conversation: ~2,800 tokens instead of ~16,000. That's an 82% reduction.

No competitor Shopify MCP server has this. It requires clean domain grouping, a dynamic registry, and a meta-tool pattern — all built into this server's architecture.

Enable it:

# cob-shopify-mcp.config.yaml
tools:
  advertise_and_activate: true

Or via environment variable:

COB_SHOPIFY_ADVERTISE_AND_ACTIVATE=true

Custom YAML tools are included automatically — they declare a domain and appear in the corresponding summary.

CLI as Agent Tool (Zero-Config AI Access)

AI agents like Claude Code and Cursor have built-in terminal access. That means they can run CLI commands directly — no MCP server needed, no config required:

# AI agent runs this via its Bash tool — zero setup
cob-shopify products list --limit 5 --json
cob-shopify orders get-by-name --name "#1001" --json
cob-shopify analytics sales-summary --start_date 2026-01-01 --end_date 2026-03-15 --json

Every command outputs clean JSON when piped or when --json is passed. The AI reads the output and uses the data. The --schema flag lets the AI discover what inputs any command accepts:

cob-shopify products list --schema   # AI reads the schema, knows what flags to pass

No MCP connection, no server process, no protocol overhead. Just npm install -g cob-shopify-mcp and the AI can use every tool immediately.

	CLI via Agent's Terminal	MCP Protocol
Setup	npm install -g only	Install + claude mcp add config
Tool discovery	--schema flag per command	Automatic schema injection
Context cost	Zero tokens	~16K tokens (or ~800 with Advertise-and-Activate)
Best for	Quick access, zero-config, CI/CD	Rich tool discovery, multi-agent, streaming

You don't have to choose — install once, use both. Same tools, same engine, same Shopify API.

Use Cases

flowchart LR
    subgraph AGENTS["Your AI Layer"]
        direction TB
        SALES["Sales Assistant"]
        SUPPORT["Customer Support Bot"]
        WAREHOUSE["Warehouse Manager"]
        SHIPPING["Shipping Tracker"]
        BI["Business Intelligence"]
        AUTO["Automation Workflows"]
    end

    MCP["cob-shopify-mcp\n49 tools · 4 resources · 4 prompts\nAdvertise-and-Activate: 82% less context"]

    SHOPIFY["Shopify Store"]

    AGENTS --> MCP --> SHOPIFY

Role	What it does	Tools used
Sales Assistant	Answer product questions, check inventory, create draft orders, look up customer history and lifetime value	search_products, get_product, list_inventory_levels, create_draft_order, get_customer_lifetime_value
Customer Support Bot	Look up orders by name/number, track fulfillment, view timeline, pull customer details	get_order_by_name, get_order_fulfillment_status, get_order_timeline, get_customer, get_customer_orders
Warehouse Manager	Monitor stock levels, get low-stock alerts, adjust inventory, check location inventory	low_stock_report, list_inventory_levels, adjust_inventory, set_inventory_level, get_location_inventory
Shipping Executive	Track fulfillment status, view order details, update order notes/tags	get_order_fulfillment_status, list_orders, add_order_note, update_order_tags
Business Intelligence	Sales summaries, top products, refund rates, repeat customer analysis, inventory risk	sales_summary, top_products, refund_rate_summary, repeat_customer_rate, inventory_risk_report
Automation Pipeline	Bulk product updates, tag management, order processing, customer segmentation	update_product, manage_product_tags, add_order_tag, add_customer_tag, create_product

Integration Patterns

1. Direct MCP (simplest) — Claude, Cursor, or any MCP client connects directly:

AI Agent → MCP Protocol → cob-shopify-mcp → Shopify API

2. Agent Orchestration Layer — Your custom agent framework uses MCP as the Shopify bridge:

User → Your App → Agent Layer (LangChain, CrewAI, etc.) → MCP Client → cob-shopify-mcp → Shopify API

3. RAG + MCP — Combine retrieval-augmented generation with live Shopify data:

User → Your App → RAG (product docs, policies, FAQs) + MCP (live store data) → Response

4. Multi-Agent System — Multiple specialized agents share one MCP server:

Sales Agent    ─┐
Support Agent  ─┤→ cob-shopify-mcp (HTTP transport) → Shopify API
Warehouse Agent─┘

Quick Start

Binary names: cob-shopify for CLI use, cob-shopify-mcp for MCP server setup. Same binary, two names.

First: Complete Getting Shopify Credentials below to get your Client ID, Client Secret, and store domain. Then come back here.

Pick one of the three paths below. All get you to the same result — a working MCP server connected to Claude.

---

Path A: npm install (simplest — no clone, no build)

Install globally and connect in two commands. No .env file needed — credentials go straight into the Claude config.

npm install -g cob-shopify-mcp

Connect to Claude CLI:

claude mcp add cob-shopify-mcp \
  -e SHOPIFY_CLIENT_ID=your_client_id \
  -e SHOPIFY_CLIENT_SECRET=shpss_your_secret \
  -e SHOPIFY_STORE_DOMAIN=your-store.myshopify.com \
  -- cob-shopify-mcp start

Done. Claude launches the server automatically when needed. Verify:

claude mcp list
# cob-shopify-mcp: ... - ✓ Connected

Or with npx (no install at all):

claude mcp add cob-shopify-mcp \
  -e SHOPIFY_CLIENT_ID=your_client_id \
  -e SHOPIFY_CLIENT_SECRET=shpss_your_secret \
  -e SHOPIFY_STORE_DOMAIN=your-store.myshopify.com \
  -- npx cob-shopify-mcp start

Or connect to Claude Desktop — add to claude_desktop_config.json (file location):

{
  "mcpServers": {
    "cob-shopify-mcp": {
      "command": "cob-shopify-mcp",
      "args": ["start"],
      "env": {
        "SHOPIFY_CLIENT_ID": "your_client_id",
        "SHOPIFY_CLIENT_SECRET": "shpss_your_secret",
        "SHOPIFY_STORE_DOMAIN": "your-store.myshopify.com"
      }
    }
  }
}

Restart Claude Desktop after saving. You'll see the tools icon showing 49 available tools.

---

Path B: Clone and build (for development / contributing)

Clone the repo and build from source. Claude launches the server via stdio — you don't run it yourself.

B1. Clone and build:

git clone https://github.com/svinpeace/cob-shopify-mcp.git
cd cob-shopify-mcp
pnpm install
pnpm build

B2. Connect to Claude CLI:

claude mcp add cob-shopify-mcp \
  -e SHOPIFY_CLIENT_ID=your_client_id \
  -e SHOPIFY_CLIENT_SECRET=shpss_your_secret \
  -e SHOPIFY_STORE_DOMAIN=your-store.myshopify.com \
  -- node /absolute/path/to/cob-shopify-mcp/dist/cli/index.js start

Done. Verify:

claude mcp list
# cob-shopify-mcp: ... - ✓ Connected

Or connect to Claude Desktop — add to claude_desktop_config.json (file location):

{
  "mcpServers": {
    "cob-shopify-mcp": {
      "command": "node",
      "args": ["/absolute/path/to/cob-shopify-mcp/dist/cli/index.js", "start"],
      "env": {
        "SHOPIFY_CLIENT_ID": "your_client_id",
        "SHOPIFY_CLIENT_SECRET": "shpss_your_secret",
        "SHOPIFY_STORE_DOMAIN": "your-store.myshopify.com"
      }
    }
  }
}

---

Path C: Docker (long-running HTTP server)

Run the server as a container via HTTP transport. Good for always-on setups, VPS deployments, or shared team access.

C1. Clone and configure:

git clone https://github.com/svinpeace/cob-shopify-mcp.git
cd cob-shopify-mcp
cp .env.example .env

Edit .env with your credentials:

SHOPIFY_CLIENT_ID=your_client_id
SHOPIFY_CLIENT_SECRET=shpss_your_secret
SHOPIFY_STORE_DOMAIN=your-store.myshopify.com

C2. Build and start the container:

docker compose up --build
# Server starts at http://127.0.0.1:3000

Verify it's running:

curl http://127.0.0.1:3000/health
# {"status":"ok"}

C3. Connect to Claude CLI:

claude mcp add --transport http shopify http://127.0.0.1:3000

# Verify
claude mcp list
# cob-shopify-mcp: http://127.0.0.1:3000 (HTTP) - ✓ Connected

Or connect to Claude Desktop — add to claude_desktop_config.json (file location):

{
  "mcpServers": {
    "cob-shopify-mcp": {
      "url": "http://127.0.0.1:3000"
    }
  }
}

Windows note: Use 127.0.0.1 not localhost — Docker on Windows may not bind to IPv6 ::1 which localhost can resolve to.

---

<a id="claude-desktop-config-location"></a>

Claude Desktop config file location:

OS	Path
macOS	~/Library/Application Support/Claude/claude_desktop_config.json
Windows	%APPDATA%\Claude\claude_desktop_config.json

Getting Shopify Credentials

Everything happens through the Shopify Developer Dashboard at dev.shopify.com. You need two things: a dev store (free) and an app with the right scopes.

Step 1 — Sign in to the Developer Dashboard

1. Go to dev.shopify.com
2. Sign in with your Shopify account (or create one — it's free, no credit card needed)
3. You'll land on the Developer Dashboard with Apps, Dev stores, and Catalogs in the left sidebar

Step 2 — Create a development store

You need a store to test against. Dev stores are free and never expire.

1. Click Dev stores in the left sidebar
2. Click Create store
3. Fill in the store name (e.g., my-dev-store) — this becomes my-dev-store.myshopify.com
4. Complete the setup

Note your store domain — you'll need it: my-dev-store.myshopify.com

Step 3 — Create an app and configure scopes

1. Click Apps in the left sidebar

2. Click Create app (top-right)

3. Enter an app name (e.g., Shopify MCP Server) and click Next

4. You'll land on the version configuration page

5. Scroll down to the Access section

6. Click Select scopes — this opens a dropdown where you can either:

   • Search and check each scope individually, or
   • Paste a comma-separated list directly into the field

Full access (recommended — copy-paste this entire block):

read_products, write_products, read_orders, write_orders, read_all_orders, read_draft_orders, write_draft_orders, read_order_edits, write_order_edits, read_customers, write_customers, read_inventory, write_inventory, read_locations, read_fulfillments, write_fulfillments, read_assigned_fulfillment_orders, write_assigned_fulfillment_orders, read_merchant_managed_fulfillment_orders, write_merchant_managed_fulfillment_orders, read_third_party_fulfillment_orders, write_third_party_fulfillment_orders, read_shipping, read_reports, read_legal_policies

Read-only? Use only the read scopes and set COB_SHOPIFY_READ_ONLY=true in .env:

read_products, read_orders, read_all_orders, read_draft_orders, read_customers, read_inventory, read_locations, read_fulfillments, read_assigned_fulfillment_orders, read_merchant_managed_fulfillment_orders, read_third_party_fulfillment_orders, read_shipping, read_reports, read_legal_policies

What each scope enables:

Scope	What it covers
Products
read_products	List, search, get products, variants, collections, tags
write_products	Create/update/delete products, variants, tags, status, collections
Orders
read_orders	List, search, get orders (last 60 days), timeline, analytics
read_all_orders	Read orders older than 60 days (historical data — requires approval)
write_orders	Update order notes/tags, mark paid, cancel orders
read_draft_orders	List, get draft orders
write_draft_orders	Create draft orders, complete draft orders to real orders
read_order_edits	View order modification history
write_order_edits	Edit existing orders (add/remove items, adjust prices)
Customers
read_customers	List, search, get customers, lifetime value, order history
write_customers	Create/update customers, manage tags
Inventory
read_inventory	Inventory levels, items, SKU lookup, low stock reports
write_inventory	Adjust quantities, set inventory levels
read_locations	Store locations (required by inventory tools)
Fulfillment
read_fulfillments	Read fulfillment data and services
write_fulfillments	Create/modify fulfillment services
read_assigned_fulfillment_orders	Read fulfillment orders assigned to your app
write_assigned_fulfillment_orders	Create fulfillments, update tracking for assigned orders
read_merchant_managed_fulfillment_orders	Read merchant-managed fulfillment orders
write_merchant_managed_fulfillment_orders	Fulfill and track merchant-managed orders
read_third_party_fulfillment_orders	Read 3PL fulfillment orders
write_third_party_fulfillment_orders	Fulfill and track 3PL orders
Other
read_shipping	Shipping zones, rates, and delivery carrier services
read_reports	Store reports and analytics data
read_legal_policies	Store policies (used by shop-policies MCP resource)

For even more scopes (themes, discounts, metafields, gift cards, marketing, returns, etc.) for custom YAML tools, see the Custom Tools Guide.

7. Click Release (top-right) to create the app version with these scopes

Step 4 — Get your Client ID and Client Secret

1. Click Settings in the left sidebar
2. Under Credentials, copy the Client ID (a 32-character hex string)
3. Click the reveal icon next to Secret and copy it (starts with shpss_)

Step 5 — Install the app on your dev store

1. Click Overview in the left sidebar (or your app name at the top)
2. Under Installs, click Install app
3. Select your development store and approve the permissions

Step 6 — Configure .env

cp .env.example .env

Fill in your credentials:

SHOPIFY_CLIENT_ID=your_client_id_here
SHOPIFY_CLIENT_SECRET=shpss_your_secret_here
SHOPIFY_STORE_DOMAIN=my-dev-store.myshopify.com
SHOPIFY_API_VERSION=2025-01

The server uses client credentials auth — it automatically exchanges your Client ID + Secret for a 24-hour access token, and refreshes it before it expires. No manual token management needed.

Alternative: Static access token. If you already have a shpat_ token (from Shopify CLI, a custom app, or another source), you can use that instead:

SHOPIFY_ACCESS_TOKEN=shpat_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
SHOPIFY_STORE_DOMAIN=my-dev-store.myshopify.com

When SHOPIFY_ACCESS_TOKEN is set, the server uses it directly and ignores Client ID/Secret.

Done. Proceed to Quick Start to run the server.

Configuration

Config File

Create cob-shopify-mcp.config.yaml in your project root:

auth:
  method: token                    # token | client-credentials | authorization-code
  store_domain: ${SHOPIFY_STORE_DOMAIN}
  access_token: ${SHOPIFY_ACCESS_TOKEN}

shopify:
  api_version: "2026-01"
  cache:
    read_ttl: 30                   # seconds
    search_ttl: 10
    analytics_ttl: 300

tools:
  read_only: false                 # disable all mutations
  disable: []                      # tool names to disable
  enable: []                       # tool names to force-enable (even tier 2)
  advertise_and_activate: false    # lazy tool loading — 82% less context tokens

transport:
  type: stdio                      # stdio | http
  port: 3000
  host: "0.0.0.0"

storage:
  backend: json                    # json | sqlite
  path: "~/.cob-shopify-mcp/"

observability:
  log_level: info                  # debug | info | warn | error
  audit_log: true

rate_limit:
  respect_shopify_cost: true
  max_concurrent: 10

Environment Variables

Variable	Maps To
SHOPIFY_ACCESS_TOKEN	auth.access_token
SHOPIFY_STORE_DOMAIN	auth.store_domain
SHOPIFY_CLIENT_ID	auth.client_id
SHOPIFY_CLIENT_SECRET	auth.client_secret
SHOPIFY_API_VERSION	shopify.api_version
COB_SHOPIFY_READ_ONLY	tools.read_only
COB_SHOPIFY_ADVERTISE_AND_ACTIVATE	tools.advertise_and_activate
COB_SHOPIFY_LOG_LEVEL	observability.log_level

Config Precedence

defaults < config file < environment variables < CLI flags

CLI Commands

# Natural commands — cob-shopify <domain> <action> [flags]
cob-shopify products list --limit 5
cob-shopify products list --limit 5 --fields id,title,status
cob-shopify products get --id gid://shopify/Product/123
cob-shopify products search --query "snowboard" --limit 10
cob-shopify orders list --limit 10 --json
cob-shopify orders get --id gid://shopify/Order/456 --fields id,name
cob-shopify customers search --query "email:john@example.com"
cob-shopify inventory low-stock-report --threshold 10
cob-shopify analytics sales-summary --start_date 2025-01-01 --end_date 2025-12-31

# Global flags (available on every command)
--json              # Force JSON output (auto when piped)
--fields <f1,f2>    # Select specific response fields
--jq <expr>         # Filter JSON with jq expression
--schema            # Show command schema, don't execute
--dry-run           # Preview mutations without executing
--yes               # Skip confirmation prompts

# Schema introspection (for AI agents)
cob-shopify products list --schema

# Mutation safety
cob-shopify products create --title "New Widget" --dry-run
cob-shopify products delete --id gid://shopify/Product/123  # prompts for confirmation

# Server commands
cob-shopify-mcp start              # Start the MCP server
cob-shopify-mcp start --transport http --port 8080
cob-shopify connect --store my-store.myshopify.com
cob-shopify config show

# Legacy commands (deprecated, will be removed in v1.0)
cob-shopify tools list
cob-shopify tools info list_products

Tools Reference

Products (15 tools)

Tool	Description	Scope
list_products	List products with filters	read_products
get_product	Get product by ID	read_products
get_product_by_handle	Get product by URL handle	read_products
search_products	Full-text product search	read_products
list_product_variants	List variants for a product	read_products
get_product_variant	Get variant by ID	read_products
list_collections	List collections	read_products
get_collection	Get collection by ID	read_products
create_product	Create a new product	write_products
create_product_variant	Add variant to product	write_products
create_collection	Create a collection	write_products
update_product	Update product fields	write_products
update_product_variant	Update variant fields	write_products
update_product_status	Change product status	write_products
manage_product_tags	Add/remove product tags	write_products

Orders (12 tools)

Tool	Description	Scope
list_orders	List orders with filters	read_orders
search_orders	Search orders by query	read_orders
get_order	Get order by ID	read_orders
get_order_by_name	Get order by name (#1001)	read_orders
get_order_timeline	Get order events timeline	read_orders
get_order_fulfillment_status	Get fulfillment details	read_orders
create_draft_order	Create a draft order	write_draft_orders
add_order_note	Add note to order	write_orders
update_order_note	Update order note	write_orders
add_order_tag	Add tags to order	write_orders
update_order_tags	Update order tags	write_orders
mark_order_paid	Mark order as paid	write_orders

Customers (9 tools)

Tool	Description	Scope
list_customers	List customers	read_customers
search_customers	Search customers	read_customers
get_customer	Get customer by ID	read_customers
get_customer_orders	Get customer's orders	read_customers
get_customer_lifetime_value	Get customer LTV	read_customers
create_customer	Create a customer	write_customers
update_customer	Update customer fields	write_customers
add_customer_tag	Add tags to customer	write_customers
remove_customer_tag	Remove tags from customer	write_customers

Inventory (7 tools)

Tool	Description	Scope
get_inventory_item	Get inventory item by ID	read_inventory
get_inventory_by_sku	Get inventory by SKU	read_inventory
list_inventory_levels	List inventory levels	read_inventory, read_locations
get_location_inventory	Get inventory at location	read_inventory, read_locations
low_stock_report	Low stock items report	read_inventory, read_locations
adjust_inventory	Adjust inventory quantity	write_inventory
set_inventory_level	Set inventory level	write_inventory

Analytics (6 tools)

Tool	Description	Scope
sales_summary	Sales totals for period	read_orders
top_products	Top products by revenue	read_orders, read_products
orders_by_date_range	Orders grouped by period	read_orders
refund_rate_summary	Refund rate analysis	read_orders
repeat_customer_rate	Repeat customer analysis	read_orders, read_customers
inventory_risk_report	Inventory risk assessment	read_inventory, read_products

Other Editors (Cursor / Windsurf)

Add to .cursor/mcp.json or equivalent:

{
  "mcpServers": {
    "cob-shopify-mcp": {
      "command": "npx",
      "args": ["-y", "cob-shopify-mcp", "start"],
      "env": {
        "SHOPIFY_CLIENT_ID": "your_client_id",
        "SHOPIFY_CLIENT_SECRET": "shpss_your_secret",
        "SHOPIFY_STORE_DOMAIN": "your-store.myshopify.com"
      }
    }
  }
}

Development

pnpm install
pnpm test           # Unit tests
pnpm test:integration  # Integration tests (requires Shopify credentials)
pnpm lint           # Biome linter
pnpm typecheck      # TypeScript type checking
pnpm build          # Build with tsup

Architecture

<div align="center">

Animated, interactive diagram showing how Entry Points, Core Engine, Shopify Shell, and the GraphQL API connect

</div>

flowchart TB
    subgraph ENTRY["Entry Points"]
        direction LR
        CLI["CLI\nproducts · orders · customers\ninventory · analytics"]
        STDIO["MCP Server\nstdio transport"]
        HTTP["HTTP Server\nStreamable HTTP"]
    end

    subgraph CORE["Core Engine (API-Agnostic)"]
        direction TB

        subgraph REGISTRY["Registry & Discovery"]
            direction LR
            AD["Auto-Discover\n*.tool.ts"]
            REG["Tool Registry\nregister · list · filter"]
            CF["Config Filter\nenable · disable · tiers"]
        end

        subgraph ENGINES["MCP Engines"]
            direction LR
            TE["Tool Engine\nschema gen · execute"]
            RE["Resource Engine\nread-only data"]
            PE["Prompt Engine\ntemplates · workflows"]
        end

        subgraph INFRA["Infrastructure"]
            direction LR
            AUTH["Auth Manager\nstatic · client-creds · OAuth"]
            OBS["Observability\nlogs · metrics · audit"]
            STORE["Storage\nJSON · SQLite+encryption"]
        end

        DT["defineTool() Helper"]
    end

    subgraph SHOPIFY["Shopify Shell"]
        direction TB

        subgraph CLIENT["Shopify GraphQL Client"]
            direction LR
            GQL["GraphQL Client\n@shopify/admin-api-client"]
            RL["Rate Limiter"]
            CACHE["Cache Layer"]
        end

        subgraph TOOLS["49 Tool Definitions"]
            direction LR
            PROD["Products\n15 tools"]
            ORD["Orders\n12 tools"]
            CUST["Customers\n9 tools"]
            INV["Inventory\n7 tools"]
            ANAL["Analytics\n6 tools"]
        end

        subgraph MCPPRIM["MCP Primitives"]
            direction LR
            RES["Resources\nshop info · locations"]
            PROMPT["Prompts\nstore health · reports"]
        end
    end

    SHOPIFY_API["Shopify Admin GraphQL API"]

    CLI --> CORE
    STDIO --> CORE
    HTTP --> CORE

    AD --> REG
    REG --> CF
    CF --> TE
    CF --> RE
    CF --> PE

    DT -.-> REG

    TE --> CLIENT
    RE --> CLIENT
    PE --> CLIENT

    AUTH --> CLIENT
    OBS -.-> TE
    STORE -.-> AUTH

    GQL --> RL
    RL --> CACHE

    TOOLS --> DT
    MCPPRIM --> RE
    MCPPRIM --> PE

    CACHE --> SHOPIFY_API

Project Structure

src/
├── core/               # API-agnostic MCP server core
│   ├── config/         # Zod config schema, multi-source loader
│   ├── auth/           # Static token, client credentials, OAuth
│   ├── engine/         # Tool, Resource, Prompt execution engines
│   ├── registry/       # Tool registry with config filtering
│   ├── storage/        # JSON + SQLite backends with encryption
│   ├── transport/      # stdio + HTTP transports
│   ├── observability/  # pino logger, cost tracker, audit log
│   └── helpers/        # defineTool, defineResource, definePrompt
├── shopify/            # Shopify-specific implementation
│   ├── client/         # GraphQL client, rate limiter, cache, retry
│   ├── tools/          # 49 tools across 5 domains
│   ├── resources/      # 4 MCP resources
│   └── prompts/        # 4 MCP prompts
├── server/             # Server bootstrap and registration bridges
└── cli/                # CLI commands (Commander + consola)

How It Compares

49 tools ship enabled out of the box — but the tool count is unlimited. Developers can add any Shopify GraphQL operation as a custom tool using simple YAML files, no TypeScript required:

# my-tools/get-metafields.yaml
name: get_shop_metafields
domain: shop
description: Get shop metafields by namespace
scopes: [read_metafields]
input:
  namespace:
    type: string
    description: Metafield namespace
    required: true
graphql: |
  query($namespace: String!) {
    shop {
      metafields(first: 10, namespace: $namespace) {
        edges { node { key value } }
      }
    }
  }
response:
  mapping: shop.metafields.edges

Point your config at the directory and they're live:

tools:
  custom_paths: ["./my-tools/"]

The 3-tier system gives full control: Tier 1 (enabled by default), Tier 2 (disabled by default, opt-in via config), Tier 3 (custom YAML tools, enabled by default). Plus tools.enable / tools.disable for granular overrides.

See the Custom Tools Guide for the full reference — YAML structure, variable naming rules, response mapping, scopes reference, error handling, and step-by-step examples.

The package ships with 5 ready-to-use custom tools in custom-tools/ — draft order completion, fulfillment orders, create fulfillment with tracking, update tracking, and order cancellation. They're enabled by default in .env.example (COB_SHOPIFY_CUSTOM_TOOLS=./custom-tools). To disable them, remove or comment out that line.

Managing Tools

# Via environment variables
COB_SHOPIFY_CUSTOM_TOOLS=./custom-tools    # Load custom YAML tools from directory
COB_SHOPIFY_DISABLE=cancel_order,tool2     # Disable specific tools
COB_SHOPIFY_ENABLE=some_tier2_tool         # Enable specific Tier 2 tools
COB_SHOPIFY_READ_ONLY=true                 # Disable ALL write operations

Feature	cob-shopify-mcp	GeLi2001 (147⭐)	pashpashpash (35⭐)	antoineschaller (10⭐)	benwmerritt
Tools	54 (49 built-in + 5 custom)	14	15	22	30+
MCP Resources	4	0	0	0	0
MCP Prompts	4	0	0	0	0
Auth methods	3 (static, client-creds, OAuth)	2	1	1	2
HTTP Transport	Streamable HTTP	No	No	No	No
Encrypted Storage	JSON + SQLite	No	No	No	No
Unit Tests	573	~2	minimal	1	~2
Docker	Multi-stage	No	No	No	No
Rate Limiter	Yes	No	No	No	No
Query Cache	Yes	No	No	No	No
Observability	pino + audit + cost	No	No	No	No
Context Reduction	82% (Advertise-and-Activate)	No	No	No	No
Config-driven	Tier system + YAML	No	No	No	No

Ecosystem

This server manages your store via the Admin GraphQL API. Pair it with Shopify's official MCP servers for the complete experience:

Server	Purpose	Complements cob-shopify-mcp
@shopify/dev-mcp	Search Shopify docs, introspect Admin GraphQL schema	Learn the API while this server manages your store
Storefront MCP	Product browsing, cart, checkout (built into every store)	Customer-facing shopping vs admin-side management

Changelog

See the full changelog here → CHANGELOG.md

License

MIT