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How to integrate Cloudflare MCP with DeepSeek Harness

Connect DeepSeek Harness to Cloudflare MCP. Add new a record for your domain, list all firewall rules for zone, and more using natural language, with authentication handled for you.

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Cloudflare is a global network that secures and accelerates web traffic. It helps protect your sites and APIs from attacks while ensuring reliable performance.

127 Tools

Introduction

DeepSeek Harness (dsh) is an open-source agent runtime from DeepSeek AI, and every part of it is a plugin, so you can swap out the model adapter, the tool registry, or the agent loop. It runs on the Cordis framework and comes with a local Web UI, a headless CLI runner, and a Python SDK. You can point it at DeepSeek V4-Pro and V4-Flash, or at Anthropic, OpenAI, and other OpenAI-compatible providers. It is MIT licensed and still in developer preview.

This guide shows how to connect your Cloudflare account to DeepSeek Harness, and you can do it with either the Composio Connect CLI or the Composio Connect MCP. The dsh-base bundle gives shell execution as a first-class tool, so the CLI is the easiest path for personal use. It is quick to set up and needs no server config, and the MCP path works well too, since the harness comes with a built-in MCP client.

Also integrate Cloudflare with

Claude CodeCursorChatGPTClaude CoworkAntigravityOpenAI Agents SDKClaude Agent SDKCodexKimi CodeGrok BuildVS CodeOpenCodeOpenClawHermesAtomic AgentPiCLIGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

What is Composio Connect?

Composio Connect lets anyone plug 1,500+ applications directly into their agent harness, including DeepSeek Harness, through a single hosted MCP endpoint. Each task runs as a session, a scoped runtime that ties together the user, the available toolkits, authentication, and execution state. It can:

  • Discover and load tools on-demand. A small set of meta tools lets the agent search for the right tool at runtime, so you never load hundreds of tool definitions into context.
  • Chain tools in a sandboxed remote workbench. Multi-step workflows run server-side, passing outputs between tools and working with files in the session's sandbox, so long chains finish without a lot of back-and-forth with the LLM.
  • Manage authentication end-to-end. Managed OAuth, per-user connected accounts, and account isolation are all handled for you, so you never wire up auth yourself.

Connect Cloudflare to DeepSeek Harness with Composio

Prerequisites: Install DeepSeek Harness

DeepSeek Harness needs Node.js (20 or 22) and pnpm. Build it from source. This is also what the MCP path in Option 2 requires, since the built-in MCP client resolves its dependencies from the checkout:

bash
git clone https://github.com/deepseek-ai/deepseek-harness.git
cd deepseek-harness
pnpm install
pnpm run build
pnpm dsh web

The Web UI listens on http://127.0.0.1:3080 by default. Open that address to confirm it is up.

Then configure your model route. In the Web UI, open Settings → Models: the built-in DeepSeek card accepts a DeepSeek API key, and the same page supports Anthropic, OpenAI, and custom OpenAI-compatible endpoints. Full first-run details are in the DeepSeek Harness docs.

Option 1: Composio CLI (recommended)

DeepSeek Harness runs shell commands as a first-class tool through its dsh-base bundle, so the Composio Universal CLI fits well. There is no MCP server to configure, and multi-step tool chaining is reliable. Install and authenticate:

bash
# Install the Composio CLI
curl -fsSL https://composio.dev/install | bash

# Log in to Composio
composio login

Connect to Cloudflare

Ask DeepSeek Harness to connect to Cloudflare, or just request any Cloudflare-related task. Under the hood the agent calls Composio commands like any other shell tool:

bash
composio search "what can I do with Cloudflare?"
composio link cloudflare

On the first Cloudflare call, composio link cloudflare opens an OAuth prompt so you can authorize access. After that, every Cloudflare command works with your stored credentials automatically, so you just talk to the agent and it will search, execute, and chain Cloudflare tools as needed.

Option 2: Composio MCP

DeepSeek Harness bridges MCP through its built-in @deepseek-ai/dsh-mcp-client plugin. You register one server as a plugin row, and its tools appear under server-qualified names (mcp__<serverName>__<rawName>), the same shape Claude Code and Codex use.

MCP requires the source build. The built-in client depends on the harness's own internal packages (cordis, dsh-llm, dsh-tools, dsh-invariants, dsh-subprocess), which resolve from the git checkout you built in the prerequisites. Run everything below from that checkout with pnpm dsh. For a route that avoids editing config files, see the community plugin at the end of this section.

Auth note: The built-in client passes static headers only and has no OAuth flow, so authenticate to Composio Connect with the x-consumer-api-key header. For Composio's OAuth flow, use the community plugin below.

1. Register the Composio server

The web profile's user patch layer is $DSH_HOME/profiles/web/cordis.patch.yml ($DSH_HOME defaults to ~/.dsh). This is a patch file, so a new plugin goes under an insert: entry. A bare - id: row instead targets an existing entry and fails to boot with patch: entry "…" not found. Add:

bash
- insert:
    - id: mcp-composio
      name: '@deepseek-ai/dsh-mcp-client'
      config:
        serverName: composio
        transport: streamable-http
        url: https://connect.composio.dev/mcp
        headers:
          x-consumer-api-key: !!js process.env.COMPOSIO_API_KEY

2. Set the API key and launch

The header value must resolve to a string at load time. Export your Composio consumer API key (ck_...), which is on the Connect → Settings → Sessions page of the Composio dashboard, in the shell you launch from. If it is unset, process.env.COMPOSIO_API_KEY is undefined and the config fails validation:

bash
export COMPOSIO_API_KEY=ck_your_key
pnpm dsh web

3. Done!

Open http://127.0.0.1:3080 and start a session on Standard or Code mode. (Minimal mode exposes only bash and str_replace_editor, so it hides MCP tools.) Composio's tools register as mcp__composio__*. Ask DeepSeek Harness to connect to Cloudflare or request any Cloudflare-related task, and Composio authorizes Cloudflare on demand on the first call.

The dsh-mcp-client config schema (transport, serverName, url, headers, plus reconnect.* and toolCallTimeoutMs) is the current developer-preview interface and may change between releases.

Alternative: OAuth via the community plugin

To use Composio Connect's OAuth flow instead of a static key, or to skip editing cordis.patch.yml by hand, use the community dsh-mcp-manager plugin. It installs as a self-contained external plugin, ships a bundle patch so it auto-mounts, and adds a Settings → MCP page plus OAuth (authorization code + PKCE, RFC 7591 dynamic client registration, and refresh-token rotation). It needs the web profile and Node.js ^22.19 or >=24, with pnpm on your PATH.

Install it from your source checkout, then restart pnpm dsh web and refresh:

bash
pnpm dsh plugin --profile web add github:hyqhyq3/dsh-mcp-manager

Open Settings → MCP → ＋ Add MCP server, choose HTTP, set the name to composio, the URL to https://connect.composio.dev/mcp, and the auth mode to OAuth. Click Authenticate, and Composio's login and consent screen opens in the browser, then redirects back and registers the tools as mcp__composio__*. The row should read connected (N tools).

The plugin catches the OAuth code on a loopback redirect (http://127.0.0.1:<port>/mcp-manager/callback/<id>), so Composio's OAuth provider must allow that loopback URL. Server configs and tokens persist at ~/.dsh/mcp-manager.json, so treat that file as a secret. Being a community plugin on a preview harness, its commands may change, so check the plugin repo if a step drifts.

What is the Cloudflare MCP server, and what's possible with it?

The Cloudflare MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Cloudflare account. It provides structured and secure access to your Cloudflare infrastructure, so your agent can perform actions like managing DNS records, configuring WAF lists, auditing firewall rules, and overseeing zones and account members—all on your behalf.

  • DNS record management: Effortlessly create or delete DNS records within any zone, allowing your agent to automate domain setup and maintenance tasks.
  • WAF list and firewall rule automation: Direct your agent to create, list, or delete Web Application Firewall (WAF) lists and audit firewall rules to enhance your site's security posture.
  • Zone administration: Enable your agent to create new zones when adding domains or delete zones that are no longer needed, streamlining domain onboarding and cleanup.
  • Account and member management: Let your agent list all Cloudflare accounts you have access to and enumerate members within each account for audit or collaboration purposes.
  • Comprehensive infrastructure visibility: Ask your agent to fetch and review your entire Cloudflare account structure, making it simple to monitor resources and configurations at scale.

Way Forward

With Cloudflare connected, DeepSeek Harness can now act on your behalf whenever you ask it to.

From here, you can extend the harness further:

  • Connect more apps: Calendar, Slack, Notion, Linear, and hundreds of others are available through the same Composio Connect setup, and each new integration adds to what your agent can do for you.
  • Build workflows across tools: Once multiple apps are connected, DeepSeek Harness can chain actions together, so it can turn an email into a calendar invite, a Slack message into a Linear ticket, or a meeting note into a follow-up draft.
  • Use the plugin system: Wrap common Cloudflare flows as dsh plugins or prompt templates so recurring tasks become one-line commands, and bundle your most-used Cloudflare tools into a named profile you can boot on demand.

If you run into trouble or want to share what you've built, join the community or check out the Docs for more configuration options.

TOOLS

Supported Tools

Every Cloudflare action and event your agent gets out of the box.

Bulk Read KV Values

Read up to 100 text or JSON values from a Workers KV namespace.

Bulk Write Workers KV Entries

Create or overwrite up to 10,000 entries in one Workers KV namespace.

Capture Browser Snapshot

Render a URL or supplied HTML and return selected page representations.

Check Registrar Domains

Check authoritative registration availability and pricing for up to 20 domains.

Create Account API Token

Create an account-owned API token and return its one-time secret value.

Create Alert Policy

Create an account-level Cloudflare notification policy.

Create D1 Database

Create a D1 database with optional placement and replication settings.

Create DNS record

Tool to create a new DNS record within a specific zone.

Create Email Routing Address

Register an Email Routing destination; Cloudflare sends it a verification email.

Create KV Namespace

Create a classic or KV Instant namespace in a Cloudflare account.

Create WAF List

Create a new empty custom list for use in WAF rules and filters.

Create Pages Deployment

Create a Cloudflare Pages deployment from a Git branch or Direct Upload manifest.

Create Pages Project

Create a Cloudflare Pages project for a production branch.

Create Turnstile Widget

Create a Turnstile challenge widget for selected domains.

Create User API Token

Create a user API token carrying supplied grants.

Create Worker

Create a beta Worker resource and configure its observability, previews, subdomain, tags, and tail consumers.

Create Worker Deployment

Deploy existing Worker versions immediately to live traffic by percentage.

Create Worker Version

Upload code, assets, and configuration as a new Worker version without deploying it to production traffic.

Create Zone

Creates a new DNS zone (domain) in Cloudflare.

Delete Account API Token

Permanently and irreversibly revoke an account-owned Cloudflare API token.

Delete DNS Record

Tool to delete a DNS record within a specific zone.

Delete WAF List

Tool to delete a WAF list.

Delete Pages Deployment

Delete a selected non-production Cloudflare Pages deployment.

Delete User API Token

Permanently revoke one user-owned Cloudflare API token.

Delete Worker

Permanently delete a beta Worker and its versions and deployments.

Delete Worker Script

Delete a classic Worker script.

Delete Zone

Tool to delete a zone.

Deploy Worker Script

Upload or replace a JavaScript module Worker script and create its latest version.

Deploy Worker With Assets

Upload static assets, create a Worker version, and deploy all traffic to it.

Download Worker Script

Download the raw source or multipart module bundle for a Worker script.

Execute D1 Query

Execute SQL against one Cloudflare D1 database.

Get Account

Retrieve one Cloudflare account by its exact account ID.

Get Account Build Limits

Return whether an account has exhausted its Worker build minutes and when they refresh.

Get Account Member

Retrieve the identity, roles, policies, and status of an account member.

Get Account Token

Retrieve metadata and policies for one account-owned API token.

Get Bot Management Settings

Tool to retrieve a zone's Bot Management configuration (Bot Fight Mode / Super Bot Fight Mode / Enterprise Bot Management).

Get Current User

Retrieve identity and account-membership details for the current user.

Get D1 Database

Get details for one D1 database, optionally selecting response fields.

Get KV Namespace

Retrieve metadata for one Cloudflare Workers KV namespace.

Get KV Value

Retrieve the stored bytes for a key in a Workers KV namespace.

List WAF Lists

Tool to fetch all WAF lists (no items) for an account.

Get MCP Server

Retrieve one Access AI Controls MCP server and its synchronization state.

Get Pages Deployment

Retrieve one Cloudflare Pages deployment and its current build status.

Get Pages Deployment Logs

Retrieve build log lines for one Cloudflare Pages deployment.

Get Pages Project

Retrieve one Cloudflare Pages project and its configuration.

Get Pages Upload Token

Request a short-lived JWT for Cloudflare Pages Direct Upload assets.

Get Tunnel Configuration

Retrieve the current configuration of a remotely managed Cloudflare Tunnel.

Get User API Token

Retrieve metadata and policies for one user-owned API token.

Get Worker

Retrieve one beta Worker resource by its exact ID or name.

Get Worker Preview Deployment

Retrieve a specific or latest deployment for a Worker Preview.

Get Workers AI Model Schema

Retrieve the input and output JSON Schemas for a Workers AI model.

Get Worker Script Content

Retrieve the deployed content of one Cloudflare Worker script.

Get Worker Script Settings

Retrieve a Worker script's metadata and runtime configuration.

Get Worker Script Subdomain

Inspect workers.

Get Worker Script Version

Retrieve detailed information for one classic Worker script version.

Get Worker Service Environment Content

Retrieve deployed content for a legacy Worker service environment.

Get Workers Subdomain

Return the workers.

Get Worker Version

Retrieve one beta Worker version; optional code modules may add megabytes.

Get Workflow

Retrieve one Workflow's configuration, metadata, schedules, and counts.

Get Workflow Instance

Retrieve logs, status, and execution details for one Workflow instance.

Get Zone

Retrieve one Cloudflare zone and its configuration, status, and metadata.

Get Zone Ruleset Phase Entrypoint

Retrieve the latest active zone entrypoint ruleset for a Rulesets phase.

Get Zone Setting

Fetch one setting for a Cloudflare zone by setting name.

Inventory Developer Resources

Return one page each of KV namespaces, Workflows, and D1 databases.

List Account Members

Lists all members of a Cloudflare account with their roles, permissions, and status.

List Accounts

List all Cloudflare accounts you have ownership or verified access to.

List Account Subscriptions

List billing subscriptions and plan details for one Cloudflare account.

List Account Tokens

List account-owned API token metadata and policies with pagination.

List D1 Databases

List one page of D1 databases in an account.

List DNS records

Tool to list and search DNS records in a Cloudflare zone.

List Email Routing Addresses

List Email Routing destination addresses configured for an account.

List Firewall Rules

Tool to list firewall rules for a specific DNS zone.

List KV Keys

List key names and metadata in a Cloudflare Workers KV namespace.

List KV Namespaces

List Workers KV namespaces in a Cloudflare account.

List MCP Portals

List Cloudflare Access AI Controls MCP portals with pagination and search.

List Monitors

Tool to list all load-balancer monitors in a Cloudflare account.

List Pages Deployments

List production or preview deployments for a Cloudflare Pages project.

List Pages Project Domains

List custom domains attached to a Cloudflare Pages project, including their validation and verification state.

List Pages Projects

List Pages projects in a Cloudflare account.

List Pools

Tool to list all load balancer pools in a Cloudflare account.

List Queues

List queues owned by a Cloudflare account.

List Registrar Registrations

List domains registered through Cloudflare Registrar.

List Rule List Entries

List entries in one Cloudflare account rule list.

List Web Analytics Sites

List Cloudflare Web Analytics sites for an account.

List Tunnels

List Cloudflare Tunnel (cloudflared) tunnels in an account to discover tunnel IDs, names, and statuses.

List Turnstile Widgets

List Turnstile widgets configured for a Cloudflare account.

List User API Tokens

List metadata for API tokens created by the connected Cloudflare user without returning token secrets.

List Worker Builds

List one page of Workers CI builds associated with an immutable Worker tag.

List Worker Build Triggers

List Workers Builds trigger configurations associated with one Worker tag.

List Worker Deployments

List deployment history for a classic Worker script.

List Worker Routes

List Worker route patterns and script assignments for a Cloudflare zone.

List Workers

List account Workers with optional sorting and page-based pagination.

List Workers Build Tokens

List Workers Builds authentication token metadata without returning token secrets.

List Worker Scripts

List uploaded classic Worker scripts, optionally filtering by tag rules.

List Worker Script Versions

List classic Worker script versions, optionally filtering to deployable versions.

List Workers Domains

List custom domains routed to Workers in a Cloudflare account.

List Worker Secrets

List the names and types of secrets bound to one Worker script.

List Worker Telemetry Values

List unique values observed for a Workers telemetry field.

List Worker Versions

List paginated versions of a Cloudflare Worker.

List Workflow Instances

List Workflow executions with state, UTC date, and cursor filters.

List Workflows

List and search account Workflows.

List Zones

Lists, searches, sorts, and filters zones in the authenticated account.

Manage Worker Schedules

Get a Worker's Cron Triggers, or replace all triggers when schedules is supplied.

Query Analytics SQL

Execute a parameterized Cloudflare Analytics SQL SELECT statement.

Query GraphQL Analytics

Run a read-only query against Cloudflare's GraphQL Analytics API.

Query Worker Telemetry

Run a saved or ad-hoc Workers Observability telemetry query.

Replace Rules List Items

Replace every item in a Rules List and wait for the bulk operation outcome.

Rerun Zone Activation Check

Trigger a fresh activation check for a pending Cloudflare zone.

Roll Account Token

Irreversibly rotate an Account Owned API token secret.

Roll Back Pages Deployment

Promote a previous successful Pages deployment back to production.

Run Workers AI Model

Run a Workers AI model and return non-streaming JSON; streaming is unsupported.

Scrape Page Elements

Render a URL or supplied HTML and return elements matching CSS selectors.

Start Worker Asset Upload Session

Register a Worker static-asset manifest and return a one-hour JWT and hash buckets for later asset-upload calls; this action does not upload asset bytes.

Update DNS record

Tool to update an existing DNS record within a specific zone.

Update WAF List

Tool to update the description of a WAF list (cannot update items).

Update Pages Project

Rename a Pages project or update its production branch, build configuration, deployment environments, or source repository settings.

Update Tunnel Configuration

Tool to update a remotely-managed Cloudflare Tunnel's configuration (ingress rules and routing).

Update Worker Preview Deployment

Create a new Preview deployment by merge-patching bindings or annotations on an existing Preview deployment.

Update Worker Script Settings

Patch Worker configuration and metadata, creating a new version.

Update Worker Script Subdomain

Enable or disable a Worker script and its previews on workers.

Update Zone

Tool to update properties of an existing zone; changes apply immediately to the live zone.

Update Zone Ruleset Phase Entrypoint

Replace a zone phase entrypoint ruleset.

Upload Pages Assets

Upload static assets and register their hashes for a Pages deployment.

Upload Worker Assets

Upload one bucket of base64-encoded Worker static assets.

Upload Worker Script Version

Upload a module-syntax classic Worker version without deploying it.

Upsert Worker Secret

Add or replace one secret binding, creating a new Worker version.

Write KV Value

Create or replace a UTF-8 value in a Cloudflare Workers KV namespace.

FRAMEWORKS

How to build Cloudflare MCP Agent with another framework

Claude Code logo

Claude Code

Use Cloudflare MCP with Claude Code

Cursor logo

Cursor

Use Cloudflare MCP with Cursor

ChatGPT logo

ChatGPT

Use Cloudflare MCP with ChatGPT

Claude Cowork logo

Claude Cowork

Use Cloudflare MCP with Claude Cowork

Antigravity logo

Antigravity

Use Cloudflare MCP with Antigravity

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Cloudflare MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Cloudflare MCP with Claude Agent SDK

Codex logo

Codex

Use Cloudflare MCP with Codex

Kimi Code logo

Kimi Code

Use Cloudflare MCP with Kimi Code

Grok Build logo

Grok Build

Use Cloudflare MCP with Grok Build

VS Code logo

VS Code

Use Cloudflare MCP with VS Code

OpenCode logo

OpenCode

Use Cloudflare MCP with OpenCode

OpenClaw logo

OpenClaw

Use Cloudflare MCP with OpenClaw

Hermes logo

Hermes

Use Cloudflare MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Cloudflare MCP with Atomic Agent

Pi logo

Pi

Use Cloudflare MCP with Pi

CLI logo

CLI

Use Cloudflare MCP with CLI

Google ADK logo

Google ADK

Use Cloudflare MCP with Google ADK

LangChain logo

LangChain

Use Cloudflare MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Cloudflare MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Cloudflare MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Cloudflare MCP with LlamaIndex

CrewAI logo

CrewAI

Use Cloudflare MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Cloudflare MCP with Pydantic AI

AutoGen logo

AutoGen

Use Cloudflare MCP with AutoGen

FAQ

Frequently asked questions

With a standalone Cloudflare MCP server, the agents and LLMs can only access a fixed set of Cloudflare tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Cloudflare and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. DeepSeek Harness fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Cloudflare tools.

Yes, absolutely. You can configure which Cloudflare scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Cloudflare data and credentials are handled as safely as possible.

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