Cloudflare MCP Server

Model Context Protocol (MCP) is a new, standardized protocol for managing context between large language models (LLMs) and external systems. In this repository, we provide an installer as well as an MCP Server for Cloudflare's API.

This lets you use Claude Desktop, or any MCP Client, to use natural language to accomplish things on your Cloudflare account, e.g.:

Please deploy me a new Worker with an example durable object.
Can you tell me about the data in my D1 database named '...'?
Can you copy all the entries from my KV namespace '...' into my R2 bucket '...'?

Demo

Setup

Run npx @cloudflare/mcp-server-cloudflare init

Note: The MCP server will automatically run npx wrangler login if you're not already authenticated with Cloudflare. You'll be prompted to complete the authentication process in your browser if needed.
Restart Claude Desktop, you should see a small 🔨 icon that shows the following tools available for use:

Paid Features

Some features in this MCP server require a paid Cloudflare Workers plan:

Observability and Analytics: The analytics_get tool and related analytics features require a paid Workers plan to access these metrics
Other premium Cloudflare features like advanced D1 database capabilities and higher usage limits also require appropriate paid plans

Ensure your Cloudflare account has the necessary subscription level for the features you intend to use.

Features

KV Store Management

get_kvs: List all KV namespaces in your account
kv_get: Get a value from a KV namespace
kv_put: Store a value in a KV namespace
kv_list: List keys in a KV namespace
kv_delete: Delete a key from a KV namespace

R2 Storage Management

r2_list_buckets: List all R2 buckets in your account
r2_create_bucket: Create a new R2 bucket
r2_delete_bucket: Delete an R2 bucket
r2_list_objects: List objects in an R2 bucket
r2_get_object: Get an object from an R2 bucket
r2_put_object: Put an object into an R2 bucket
r2_delete_object: Delete an object from an R2 bucket

D1 Database Management

d1_list_databases: List all D1 databases in your account
d1_create_database: Create a new D1 database
d1_delete_database: Delete a D1 database
d1_query: Execute a SQL query against a D1 database

Workers Management

worker_list: List all Workers in your account
worker_get: Get a Worker's script content
worker_put: Create or update a Worker script
worker_delete: Delete a Worker script

Durable Objects

durable_objects_list: List all Durable Objects namespaces
durable_objects_create: Create a new Durable Objects namespace
durable_objects_delete: Delete a Durable Objects namespace
durable_objects_list_instances: List all instances for a specific Durable Objects namespace
durable_objects_get_instance: Get details about a specific Durable Objects instance
durable_objects_delete_instance: Delete a specific Durable Objects instance

Queues

queues_list: List all Queues in your account
queues_create: Create a new Queue
queues_delete: Delete a Queue
queues_get: Get details about a specific Queue
queues_send_message: Send a message to a Queue
queues_get_messages: Get messages from a Queue
queues_update_consumer: Update a Queue consumer

Workers AI

workers_ai_list_models: List available AI models
workers_ai_get_model: Get details about a specific AI model
workers_ai_run_inference: Run inference using Workers AI
workers_ai_list_tasks: List AI tasks

Workflows

workflows_list: List all Workflows in your account
workflows_create: Create a new Workflow
workflows_delete: Delete a Workflow
workflows_get: Get details about a specific Workflow
workflows_update: Update a Workflow
workflows_execute: Execute a Workflow

Templates

templates_list: List available Worker templates
templates_get: Get details about a specific template
templates_create_from_template: Create a new Worker from a template

Workers for Platforms

w4p_list_dispatchers: List all Workers for Platforms dispatchers
w4p_create_dispatcher: Create a new dispatcher
w4p_delete_dispatcher: Delete a dispatcher
w4p_get_dispatcher: Get details about a specific dispatcher
w4p_update_dispatcher: Update a dispatcher configuration

Service Bindings

bindings_list: List all service bindings for a Worker
bindings_create: Create a new service binding
bindings_update: Update a service binding
bindings_delete: Delete a service binding

URL Routing

routing_list_routes: List all routes for a Worker
routing_create_route: Create a new route
routing_update_route: Update a route
routing_delete_route: Delete a route

Cron Triggers

cron_list: List all cron triggers for a Worker
cron_create: Create a new cron trigger
cron_update: Update a cron trigger
cron_delete: Delete a cron trigger

Zones & Domains

zones_list: List all zones in your account
zones_create: Create a new zone
zones_delete: Delete a zone
zones_get: Get details about a specific zone
zones_check_activation: Check zone activation status

Secrets

secrets_list: List all secrets for a Worker
secrets_put: Create or update a secret
secrets_delete: Delete a secret

Version Management

versions_list: List all versions of a Worker
versions_get: Get details about a specific version
versions_rollback: Rollback to a previous version

Wrangler Config

wrangler_get_config: Get the current Wrangler configuration
wrangler_update_config: Update Wrangler configuration

Analytics

analytics_get: Retrieve analytics data for your domain
- Includes metrics like requests, bandwidth, threats, and page views
- Supports date range filtering

Developing

In the current project folder, run:

pnpm install
pnpm build:watch

Then, in a second terminal:

node dist/index.js init

This will link Claude Desktop against your locally-installed version for you to test. If you're not already authenticated with Wrangler, the server will automatically prompt you to complete the authentication process in your browser.

Testing

The project uses Vitest as the testing framework with MSW (Mock Service Worker) for API mocking.

Running Tests

To run all tests:

pnpm test

To run tests with coverage:

pnpm test:coverage

To run a specific test file:

pnpm test -- tests/tools/queues.test.ts

To run tests in watch mode (useful during development):

pnpm test:watch

Test Structure

The test suite is organized as follows:

tests/tools/: Contains tests for each Cloudflare API tool
tests/mocks/: Contains mock data and request handlers
tests/utils/: Contains test helper functions
tests/setup.ts: Global test setup configuration

Each tool test file follows a consistent pattern of testing both successful operations and error handling scenarios.

Usage outside of Claude

To run the server locally, run node dist/index run <account-id>.

If you're using an alternative MCP Client, or testing things locally, emit the tools/list command to get an up-to-date list of all available tools. Then you can call these directly using the tools/call command.

Workers

// List workers
worker_list()
 
// Get worker code
worker_get({ name: "my-worker" })
 
// Update worker
worker_put({
  name: "my-worker",
  script: "export default { async fetch(request, env, ctx) { ... }}",
  bindings: [
    {
      type: "kv_namespace",
      name: "MY_KV",
      namespace_id: "abcd1234"
    },
    {
      type: "r2_bucket",
      name: "MY_BUCKET",
      bucket_name: "my-files"
    }
  ],
  compatibility_date: "2024-01-01",
  compatibility_flags: ["nodejs_compat"]
})
 
// Delete worker
worker_delete({ name: "my-worker" })

KV Store

// List KV namespaces
get_kvs()
 
// Get value
kv_get({
    namespaceId: "your_namespace_id",
    key: "myKey"
})
 
// Store value
kv_put({
    namespaceId: "your_namespace_id",
    key: "myKey",
    value: "myValue",
    expirationTtl: 3600 // optional, in seconds
})
 
// List keys
kv_list({
    namespaceId: "your_namespace_id",
    prefix: "app_", // optional
    limit: 10 // optional
})
 
// Delete key
kv_delete({
    namespaceId: "your_namespace_id",
    key: "myKey"
})

R2 Storage

// List buckets
r2_list_buckets()
 
// Create bucket
r2_create_bucket({ name: "my-bucket" })
 
// Delete bucket
r2_delete_bucket({ name: "my-bucket" })
 
// List objects in bucket
r2_list_objects({ 
    bucket: "my-bucket",
    prefix: "folder/", // optional
    delimiter: "/", // optional
    limit: 1000 // optional
})
 
// Get object
r2_get_object({
    bucket: "my-bucket",
    key: "folder/file.txt"
})
 
// Put object
r2_put_object({
    bucket: "my-bucket",
    key: "folder/file.txt",
    content: "Hello, World!",
    contentType: "text/plain" // optional
})
 
// Delete object
r2_delete_object({
    bucket: "my-bucket",
    key: "folder/file.txt"
})

D1 Database

// List databases
d1_list_databases()
 
// Create database
d1_create_database({ name: "my-database" })
 
// Delete database
d1_delete_database({ databaseId: "your_database_id" })
 
// Execute a single query
d1_query({
    databaseId: "your_database_id",
    query: "SELECT * FROM users WHERE age > ?",
    params: ["25"] // optional
})
 
// Create a table
d1_query({
    databaseId: "your_database_id",
    query: `
        CREATE TABLE users (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            name TEXT NOT NULL,
            email TEXT UNIQUE,
            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
        )
    `
})

Analytics

// Get today's analytics
analytics_get({
    zoneId: "your_zone_id",
    since: "2024-11-26T00:00:00Z",
    until: "2024-11-26T23:59:59Z"
})

Durable Objects

// List Durable Objects namespaces
durable_objects_list()
 
// Create a new Durable Objects namespace
durable_objects_create({
    name: "my-durable-object",
    script_name: "my-worker",
    class_name: "MyDurableObjectClass"
})
 
// Delete a Durable Objects namespace
durable_objects_delete({
    id: "your_namespace_id"
})
 
// List instances for a namespace
durable_objects_list_instances({
    namespaceId: "your_namespace_id",
    limit: 100 // optional
})
 
// Get details about a specific instance
durable_objects_get_instance({
    namespaceId: "your_namespace_id",
    instanceId: "your_instance_id"
})
 
// Delete a specific instance
durable_objects_delete_instance({
    namespaceId: "your_namespace_id",
    instanceId: "your_instance_id"
})

Queues

// List all queues
queues_list()
 
// Create a new queue
queues_create({
    name: "my-queue",
    settings: {
        delivery_delay: 0,
        dead_letter_queue: "dead-letter-queue" // optional
    }
})
 
// Delete a queue
queues_delete({
    name: "my-queue"
})
 
// Get queue details
queues_get({
    name: "my-queue"
})
 
// Send a message to a queue
queues_send_message({
    queue: "my-queue",
    messages: [
        { body: JSON.stringify({ key: "value" }) }
    ]
})
 
// Get messages from a queue
queues_get_messages({
    queue: "my-queue",
    batchSize: 10, // optional
    visibilityTimeout: 30 // optional, in seconds
})
 
// Update a queue consumer
queues_update_consumer({
    queue: "my-queue",
    consumer: "my-consumer",
    settings: {
        dead_letter_queue: "dead-letter-queue",
        batch_size: 10,
        max_retries: 3
    }
})

Workers AI

// List available AI models
workers_ai_list_models()
 
// Get details about a specific model
workers_ai_get_model({
    model: "@cf/meta/llama-2-7b-chat-int8"
})
 
// Run inference using Workers AI
workers_ai_run_inference({
    model: "@cf/meta/llama-2-7b-chat-int8",
    input: {
        messages: [
            { role: "system", content: "You are a helpful assistant." },
            { role: "user", content: "Hello, who are you?" }
        ]
    },
    options: {
        temperature: 0.7,
        max_tokens: 100
    }
})
 
// List AI tasks
workers_ai_list_tasks()

Workflows

// List all workflows
workflows_list()
 
// Create a new workflow
workflows_create({
    name: "my-workflow",
    content: "// Workflow script content here"
})
 
// Delete a workflow
workflows_delete({
    name: "my-workflow"
})
 
// Get workflow details
workflows_get({
    name: "my-workflow"
})
 
// Update a workflow
workflows_update({
    name: "my-workflow",
    content: "// Updated workflow script content"
})
 
// Execute a workflow
workflows_execute({
    name: "my-workflow",
    input: { key: "value" }
})

Templates

// List available templates
templates_list()
 
// Get details about a specific template
templates_get({
    template: "worker-typescript"
})
 
// Create a worker from a template
templates_create_from_template({
    name: "my-new-worker",
    template: "worker-typescript",
    options: {
        // Template-specific options
    }
})

Workers for Platforms

// List dispatchers
w4p_list_dispatchers()
 
// Create a new dispatcher
w4p_create_dispatcher({
    name: "my-dispatcher",
    script: "// Dispatcher script content"
})
 
// Delete a dispatcher
w4p_delete_dispatcher({
    name: "my-dispatcher"
})
 
// Get dispatcher details
w4p_get_dispatcher({
    name: "my-dispatcher"
})
 
// Update dispatcher
w4p_update_dispatcher({
    name: "my-dispatcher",
    script: "// Updated dispatcher script content"
})

Service Bindings

// List all service bindings for a worker
bindings_list({
    workerName: "my-worker"
})
 
// Create a new service binding
bindings_create({
    workerName: "my-worker",
    bindingName: "MY_SERVICE",
    serviceEnvironment: "production",
    serviceName: "target-worker"
})
 
// Update a service binding
bindings_update({
    workerName: "my-worker",
    bindingName: "MY_SERVICE",
    serviceEnvironment: "staging",
    serviceName: "target-worker"
})
 
// Delete a service binding
bindings_delete({
    workerName: "my-worker",
    bindingName: "MY_SERVICE"
})

URL Routing

// List all routes for a worker
routing_list_routes({
    workerName: "my-worker"
})
 
// Create a new route
routing_create_route({
    workerName: "my-worker",
    pattern: "example.com/*",
    zoneId: "your_zone_id"
})
 
// Update a route
routing_update_route({
    routeId: "your_route_id",
    pattern: "api.example.com/*",
    zoneId: "your_zone_id"
})
 
// Delete a route
routing_delete_route({
    routeId: "your_route_id"
})

Cron Triggers

// List all cron triggers for a worker
cron_list({
    workerName: "my-worker"
})
 
// Create a new cron trigger
cron_create({
    workerName: "my-worker",
    schedule: "*/5 * * * *",
    timezone: "UTC" // optional
})
 
// Update a cron trigger
cron_update({
    triggerId: "your_trigger_id",
    schedule: "0 */2 * * *",
    timezone: "America/New_York"
})
 
// Delete a cron trigger
cron_delete({
    triggerId: "your_trigger_id"
})

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Cloudflare MCP Server

Introduction

Cloudflare MCP Server

Demo

Setup

Paid Features

Features

KV Store Management

R2 Storage Management

D1 Database Management

Workers Management

Durable Objects

Queues

Workers AI

Workflows

Templates

Workers for Platforms

Service Bindings

URL Routing

Cron Triggers

Zones & Domains

Secrets

Version Management

Wrangler Config

Analytics

Developing

Testing

Running Tests

Test Structure

Usage outside of Claude

Workers

KV Store

R2 Storage

D1 Database

Analytics

Durable Objects

Queues

Workers AI

Workflows

Templates

Workers for Platforms

Service Bindings

URL Routing

Cron Triggers

Contributing

Information

Categories

Tags

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