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How to connect Simplero to Claude

Connect Claude Web, Desktop and Cowork to Simplero MCP. List all active contacts in simplero, send a broadcast email to your list, and more using natural language, with authentication handled for you.

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Simplero is all-in-one marketing software for course creators and online coaches. It streamlines campaigns, automations, membership, and content delivery in one platform.

19 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Simplero account to Claude via Composio Connect, enabling it to list all active contacts in Simplero, send a broadcast email to your list, enroll a user in a specific course, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Simplero with

Claude CodeOpenAI Agents SDKClaude Agent SDKCodexOpenClawHermesAtomic AgentGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Simplero to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Simplero account

Back in Claude, ask it to connect to Simplero or give it any Simplero-related task.

For example, ask Claude to:

  • "List all active contacts in Simplero"
  • "Send a broadcast email to your list"
  • "Enroll a user in a specific course"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Simplero account is ready to use.

What is the Simplero Claude Connector, and what's possible with it?

The Simplero MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Simplero account. It provides structured and secure access so your agent can perform Simplero operations on your behalf.

Troubleshooting

1. Why does Claude not use the Composio connector for Simplero?

The connector can show as connected, but Claude must use it in each Simplero conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Simplero again.

2. Why does Claude show an MCP server error before Simplero connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Simplero.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Simplero.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Simplero authorization link not work?

The Composio connector is one server. Your Simplero account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Simplero connection.
  • Composio creates a fresh Simplero authorization link.
  • Open that link in your browser and finish the Simplero sign-in.

4. Why do Simplero actions fail after they worked before?

The Simplero connection can expire or lose permission.

  • Ask Claude to inspect the Simplero connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Simplero account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Simplero.
  • If the action still fails with a permission error, check that the connected account has that permission in Simplero itself.

5. How do I switch to a different Simplero account?

Claude can manage the Simplero connection for you.

  • Ask Claude to disconnect or delete the current Simplero account.
  • Ask Claude to connect Simplero again.
  • Open the new Composio authorization link for Simplero.
  • Sign in with the other Simplero account in the browser.
  • After the account connects, ask Claude to retry the Simplero task.

6. Why is my Simplero connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Simplero connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Simplero tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Simplero.
TOOLS

Supported Tools

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

Add Tag to Contact

Tool to add a tag to a contact identified by email address.

Bulk Subscribe to List

Tool to add multiple subscribers to a list in a single asynchronous request (max 1,000 per request).

Create or Update Administrator

Tool to create a new administratorship or update an existing one with the same email.

Create or Update Contact

Tool to create a new contact or update an existing contact with the same email.

Find Contact By Email

Tool to find and retrieve a contact by email address.

Find Subscription By Email

Tool to find subscriptions for a specific list by email address.

Get Administrator By ID

Tool to retrieve a single administratorship by internal ID.

Get Administrators

Tool to retrieve all administratorships for the account.

Get Admin Roles

Tool to retrieve all available admin roles for the account including custom roles.

Get Async Request Status

Tool to check the status of an asynchronous API request.

Get Contact By ID

Tool to retrieve a JSON representation of a contact by internal ID.

Get Invoices

Tool to get invoice information with optional filtering by date and invoice number.

Get All Lists

Tool to retrieve all mailing lists configured in the account.

Get Products

Tool to list all products in the account.

Remove Administrator

Tool to delete an administratorship by ID.

Remove Tag from Contact

Tool to remove a tag from a contact identified by email address.

Subscribe to List

Tool to add a new subscriber to a specific mailing list.

Unsubscribe From List

Tool to unsubscribe a customer from a specific mailing list.

Update Contact Credentials

Tool to update a contact's login credentials including email, first name, and last name.

FRAMEWORKS

How to build Simplero MCP Agent with another framework

Claude Code logo

Claude Code

Use Simplero MCP with Claude Code

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Simplero MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Simplero MCP with Claude Agent SDK

Codex logo

Codex

Use Simplero MCP with Codex

OpenClaw logo

OpenClaw

Use Simplero MCP with OpenClaw

Hermes logo

Hermes

Use Simplero MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Simplero MCP with Atomic Agent

Google ADK logo

Google ADK

Use Simplero MCP with Google ADK

LangChain logo

LangChain

Use Simplero MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Simplero MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Simplero MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Simplero MCP with LlamaIndex

CrewAI logo

CrewAI

Use Simplero MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Simplero MCP with Pydantic AI

AutoGen logo

AutoGen

Use Simplero MCP with AutoGen

FAQ

Frequently asked questions

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

Yes, you can. Claude Cowork 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 Simplero tools.

Yes, absolutely. You can configure which Simplero 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 Simplero data and credentials are handled as safely as possible.

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