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Claude Code + Cloudflare

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Anthropic

Claude Code + Cloudflare

Terminal-based coding agent that understands your codebase, runs commands, edits files, and manages git. Made by Anthropic.

TerminalStandaloneCloudExtension

Cloudflare Skills·Cloudflare Code Mode API MCP·Cloudflare Domain Specific MCPs·Claude Code Docs

Quick start

Install Claude Code

Install the Claude Code CLI. For Windows, Homebrew, WinGet, or npm, see the Claude Code setup guide ↗.
curl -fsSL https://claude.ai/install.sh | bash

Launch Claude Code in your project

Start Claude Code from the root of your project, where wrangler.jsonc lives (if it already exists).
claude

Install the Cloudflare plugin

In Claude Code, run these two slash commands. This installs Cloudflare Skills and registers the Cloudflare MCP servers.
/plugin marketplace add cloudflare/skills/plugin install cloudflare@cloudflare

Try a prompt

For example:
Set up rate limiting and WAF rules to block abuse on my public API.

Cloudflare platform access

Expand any section to learn more.

Cloudflare Skills

Persistent platform context that teaches the agent how Cloudflare works.

Skills are instructions the agent loads on demand. The cloudflare/skills bundle covers every layer of the platform — so the agent knows your conventions without you re-explaining them.

agents-sdkBuild AI agents on Cloudflare Workers using the Agents SDK. Load when creating stateful agents, durable workflows, real-time WebSocket apps, scheduled tasks, MCP servers, chat applications, voice agents, or browser automation. Covers Agent class, state management, callable RPC, Workflows, durable execution, queues, retries, observability, and React hooks. Biases towards retrieval from Cloudflare docs over pre-trained knowledge.

cloudflareComprehensive Cloudflare platform skill covering Workers, Pages, storage (KV, D1, R2), AI (Workers AI, Vectorize, Agents SDK), feature flags (Flagship), networking (Tunnel, Spectrum), security (WAF, DDoS), and infrastructure-as-code (Terraform, Pulumi). Use for any Cloudflare development task. Biases towards retrieval from Cloudflare docs over pre-trained knowledge.

cloudflare-email-serviceSend and receive transactional emails with Cloudflare Email Service (Email Sending + Email Routing). Use when building email sending (Workers binding or REST API), email routing, Agents SDK email handling, or integrating email into any app — Workers, Node.js, Python, Go, etc. Also use for email deliverability, SPF/DKIM/DMARC, wrangler email setup, MCP email tools, or when a coding agent needs to send emails. Even for simple requests like "add email to my Worker" — this skill has critical config details.

cloudflare-one"Guides Cloudflare One Zero Trust and SASE work across Access, Gateway, WARP, Tunnel, Cloudflare WAN, DLP, CASB, device posture, and identity. Use when designing, configuring, troubleshooting, or reviewing Cloudflare One deployments. Retrieval-first: use current Cloudflare docs/API schemas instead of embedded product docs."

cloudflare-one-migrationsPlans migrations from Zscaler ZIA/ZPA, Palo Alto, legacy VPN, SWG, or SASE stacks to Cloudflare One. Use for migration assessments, policy mapping, rollout plans, and parity/gap analysis.

durable-objectsCreate and review Cloudflare Durable Objects. Use when building stateful coordination (chat rooms, multiplayer games, booking systems), implementing RPC methods, SQLite storage, alarms, WebSockets, or reviewing DO code for best practices. Covers Workers integration, wrangler config, and testing with Vitest. Biases towards retrieval from Cloudflare docs over pre-trained knowledge.

sandbox-sdkBuild sandboxed applications for secure code execution. Load when building AI code execution, code interpreters, CI/CD systems, interactive dev environments, or executing untrusted code. Covers Sandbox SDK lifecycle, commands, files, code interpreter, and preview URLs. Biases towards retrieval from Cloudflare docs over pre-trained knowledge.

turnstile-spinSet up Cloudflare Turnstile end-to-end in a project. Scan the codebase, create the widget via the Cloudflare API, embed it where user requests need bot verification (form submissions, SPA actions, API endpoints, download links, comment or vote submissions, etc.), wire canonical server-side siteverify in the customer's existing backend, validate, and persist the skill. Load this when a user asks to add Turnstile, set up CAPTCHA, protect a form or endpoint from bots, or fix a Turnstile integration. Mirrors developers.cloudflare.com/turnstile/spin.

web-perfAnalyzes web performance using Chrome DevTools MCP. Measures Core Web Vitals (LCP, INP, CLS) and supplementary metrics (FCP, TBT, Speed Index), identifies render-blocking resources, network dependency chains, layout shifts, caching issues, and accessibility gaps. Use when asked to audit, profile, debug, or optimize page load performance, Lighthouse scores, or site speed. Biases towards retrieval from current documentation over pre-trained knowledge.

workers-best-practicesReviews and authors Cloudflare Workers code against production best practices. Load when writing new Workers, reviewing Worker code, configuring wrangler.jsonc, or checking for common Workers anti-patterns (streaming, floating promises, global state, secrets, bindings, observability). Biases towards retrieval from Cloudflare docs over pre-trained knowledge.

wranglerCloudflare Workers CLI for deploying, developing, and managing Workers, KV, R2, D1, Vectorize, Hyperdrive, Workers AI, Containers, Queues, Workflows, Pipelines, and Secrets Store. Load before running wrangler commands to ensure correct syntax and best practices. Biases towards retrieval from Cloudflare docs over pre-trained knowledge.

MCP servers

Live access to the Cloudflare API, docs, and observability.

MCP servers provide typed tools to call into Cloudflare at runtime. There are two options: Code Mode — a single server that covers the entire Cloudflare API (2,500+ endpoints in ~1,000 tokens) — or a set of focused, domain-specific servers hosted in the cloudflare/mcp-server-cloudflare repo. The full catalog is also in the MCP servers for Cloudflare docs.

Code mode APIcode modeBroad access to the full Cloudflare API via code execution, with minimal token overheadhttps://mcp.cloudflare.com/mcp

AI Gateway serverSearch your logs, get details about the prompts and responseshttps://ai-gateway.mcp.cloudflare.com/mcp

Audit Logs serverQuery audit logs and generate reports for reviewhttps://auditlogs.mcp.cloudflare.com/mcp

AutoRAG serverSearch and query account AutoRAG instanceshttps://autorag.mcp.cloudflare.com/mcp

Browser Run serverFetch web pages, convert them to markdown and take screenshotshttps://browser.mcp.cloudflare.com/mcp

Cloudflare Blog serverSearch and read posts from the Cloudflare Bloghttps://blog.mcp.cloudflare.com/mcp

Cloudflare One CASB serverQuickly identify any security misconfigurations for SaaS applications to safeguard users & datahttps://casb.mcp.cloudflare.com/mcp

Container serverSpin up a sandbox development environmenthttps://containers.mcp.cloudflare.com/mcp

Demo Day serverDemonstrate a minimal Cloudflare MCP serverhttps://demo-day.mcp.cloudflare.com/mcp

Digital Experience Monitoring serverGet quick insight on critical applications for your organizationhttps://dex.mcp.cloudflare.com/mcp

DNS Analytics serverOptimize DNS performance and debug issues based on current setuphttps://dns-analytics.mcp.cloudflare.com/mcp

Documentation serverGet up-to-date reference information on Cloudflarehttps://docs.mcp.cloudflare.com/mcp

Logpush serverGet quick summaries for Logpush job healthhttps://logs.mcp.cloudflare.com/mcp

Observability serverDebug and get insight into your application's logs and analyticshttps://observability.mcp.cloudflare.com/mcp

Radar serverExplore Cloudflare Radar internet insightshttps://radar.mcp.cloudflare.com/mcp

Workers Bindings serverBuild Workers applications with storage, AI, and compute primitiveshttps://bindings.mcp.cloudflare.com/mcp

Workers Builds serverGet insights and manage your Cloudflare Workers Buildshttps://builds.mcp.cloudflare.com/mcp

Wrangler CLI

Local dev, deploys, and Workers-specific commands.

Use Wrangler for local development, deploys, and product-specific commands like wrangler d1 migrations apply or wrangler tail. The bundled wrangler Skill teaches the agent when to reach for it.

What’s next

The unified cf CLI is in technical preview — a next-generation CLI that covers every Cloudflare product with consistent verbs and ergonomic output for agents. Try it with npx cf. Read the announcement →

Agent-friendly docs

Token-efficient references optimized for agents.

Append /index.md to any Cloudflare docs URL for a clean markdown version. Every top-level product section also has its own llms.txt — a page index sized for a single context window. A few useful ones:

developers.cloudflare.com/llms.txt — directory of every Cloudflare product.

developers.cloudflare.com/workers/llms.txt

developers.cloudflare.com/agents/llms.txt

developers.cloudflare.com/r2/llms.txt

developers.cloudflare.com/d1/llms.txt

For a full overview of how these docs are structured for agents, refer to the Docs for Agents guide.

Example prompts

Set up a KV namespace for edge-cached session storage in my Worker.Set up WAF rules to block SQL injection and XSS attacks on my application.Set up a Waiting Room to handle flash sale traffic spikes without dropping requests.Build a serverless AI inference endpoint on Workers AI with streaming responses.Build a multi-tenant SaaS backend where each customer gets an isolated D1 database.

Tips

The Skills plugin includes a wrangler Skill — Claude knows when to reach for npx wrangler deploy, wrangler d1 migrations apply, and other CLI commands automatically.

Try the /cloudflare:build-agent slash command to scaffold a complete Agents SDK project, or /cloudflare:build-mcp for a remote MCP server.

The Cloudflare API MCP server uses Code Mode — Claude writes JavaScript against a TypeScript API to hit any of 2,500+ endpoints in ~1,000 tokens.

Claude Code works best from the root of your Workers project where wrangler.jsonc lives — this is what the agent uses to understand your bindings.

Use claude mcp list to verify Cloudflare servers are connected. For CI/CD, skip OAuth by passing a Cloudflare API token as a bearer token instead.

Cloudflare MCP server repository

Installing additional MCP servers, and when to use Code Mode versus traditional MCP servers.

FAQ

Should I use Skills, the MCP server, Wrangler CLI, or all of them?

All three — and the Skills plugin configures them together. Skills give Claude persistent Cloudflare knowledge (when to use Durable Objects vs KV, what a good Workers project layout looks like). The Cloudflare API MCP server handles platform operations (DNS, WAF, R2 buckets, Zero Trust). Wrangler runs local dev and Workers-specific commands. The wrangler Skill teaches Claude when to reach for which.

How do I give Claude Code access to my Cloudflare account?

The first time Claude calls a Cloudflare tool, you will be redirected to authorize via OAuth and choose what permissions to grant.

Can Claude Code deploy to existing Workers projects?

Yes. Run Claude Code from your existing project directory where wrangler.jsonc is located, and it will understand your project configuration and deploy accordingly.

What does Code Mode mean for MCP?

Code Mode is how the Cloudflare API MCP server fits all 2,500+ API endpoints into ~1,000 tokens. Instead of exposing every endpoint as a separate tool, it exposes two — search() and execute() — and Claude writes JavaScript to call them. Learn more about Code Mode ↗.

Troubleshooting

MCP server connection fails or times out

Run claude mcp list to verify the server is registered. Try removing and re-adding: claude mcp remove cloudflare then re-add it. Ensure you have npx and mcp-remote available.

Claude cannot authenticate with Cloudflare

The MCP server uses OAuth. When prompted, complete the authorization flow in your browser. For CI/CD, create a Cloudflare API token and pass it as a bearer token instead.

Getting outdated information about Cloudflare products

Enable the Cloudflare docs MCP server so the agent can fetch current documentation at runtime. If you prefer not to use the MCP server, point the agent directly at developers.cloudflare.com/llms.txt for a directory of every product, or developers.cloudflare.com/<product>/llms.txt for a product-specific index.

Build agents on Cloudflare

Cloudflare is not just a deploy target for agents, it is a full stack for building your own.

Agents SDK

Stateful AI agents with state, scheduling, RPC, email, streaming chat — and the Code Mode SDK for token-efficient tool use.
Learn more
Build an MCP server

Ship a remote MCP server on Workers with OAuth, durable state, and streamable HTTP transport.
Learn more
Workers AI

Run open-source LLMs, embedding models, and image models at the edge. Use it as your agent's model provider.
Learn more
Worker Loader

Load user-generated code into isolated Workers on demand. The secure sandbox behind Code Mode.
Learn more

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