# How to integrate Laposta MCP with Claude Agent SDK

```json
{
  "title": "How to integrate Laposta MCP with Claude Agent SDK",
  "toolkit": "Laposta",
  "toolkit_slug": "laposta",
  "framework": "Claude Agent SDK",
  "framework_slug": "claude-agents-sdk",
  "url": "https://composio.dev/toolkits/laposta/framework/claude-agents-sdk",
  "markdown_url": "https://composio.dev/toolkits/laposta/framework/claude-agents-sdk.md",
  "updated_at": "2026-03-29T06:40:02.341Z"
}
```

## Introduction

This guide walks you through connecting Laposta to the Claude Agent SDK using the Composio tool router. By the end, you'll have a working Laposta agent that can add subscriber to laposta list by email, send campaign to "monthly updates" group, get open rates for last laposta campaign through natural language commands.
This guide will help you understand how to give your Claude Agent SDK agent real control over a Laposta account through Composio's Laposta MCP server.
Before we dive in, let's take a quick look at the key ideas and tools involved.

## Also integrate Laposta with

- [OpenAI Agents SDK](https://composio.dev/toolkits/laposta/framework/open-ai-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/laposta/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/laposta/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/laposta/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/laposta/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/laposta/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/laposta/framework/cli)
- [Google ADK](https://composio.dev/toolkits/laposta/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/laposta/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/laposta/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/laposta/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/laposta/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/laposta/framework/crew-ai)

## TL;DR

Here's what you'll learn:
- Get and set up your Claude/Anthropic and Composio API keys
- Install the necessary dependencies
- Initialize Composio and create a Tool Router session for Laposta
- Configure an AI agent that can use Laposta as a tool
- Run a live chat session where you can ask the agent to perform Laposta operations

## What is Claude Agent SDK?

The Claude Agent SDK is Anthropic's official framework for building AI agents powered by Claude. It provides a streamlined interface for creating agents with MCP tool support and conversation management.
Key features include:
- Native MCP Support: Built-in support for Model Context Protocol servers
- Permission Modes: Control tool execution permissions
- Streaming Responses: Real-time response streaming for interactive applications
- Context Manager: Clean async context management for sessions

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

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

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `LAPOSTA_CAMPAIGN_GET_ALL` | Get All Campaigns | Tool to retrieve all campaigns from Laposta account. Use when you need to list all email campaigns with their configuration and delivery status. |
| `LAPOSTA_FIELD_CREATE` | Create Custom Field | Tool to create a custom field for a mailing list to define subscriber attributes. Use when you need to add custom fields like text, numeric, date, or select fields to a list. For select fields (select_single or select_multiple), you must provide the options parameter. |
| `LAPOSTA_FIELD_DELETE` | Delete Field | Tool to permanently remove a custom field from a mailing list. Use when you need to delete a field that is no longer needed. |
| `LAPOSTA_FIELD_GET` | Get Field Details | Tool to retrieve specific field details by field_id. Use when you need to fetch complete information about a custom field including its configuration, data type, and available options. |
| `LAPOSTA_GET_ALL_FIELDS` | Get All Fields | Tool to retrieve all fields for a specific list in Laposta. Use when you need to see all field definitions, metadata, and settings for a list. |
| `LAPOSTA_UPDATE_FIELD` | Update Field | Tool to modify field configuration in a Laposta list. Use when you need to update field properties such as name, datatype, required status, or display settings. WARNING: Modifying datatype removes all data from that field. |
| `LAPOSTA_CLEAR_ALL_MEMBERS_FROM_LIST` | Clear All Members From List | Tool to clear all active members from a list. Use when you need to remove all active member relationships while preserving the list itself. The operation is permanent and cannot be undone. |
| `LAPOSTA_CREATE_MAILING_LIST` | Create Mailing List | Tool to create a new mailing list in Laposta to manage email subscribers. Use when you need to create a new list with zero members. |
| `LAPOSTA_DELETE_LIST` | Delete List | Tool to permanently remove a mailing list from Laposta. Use when you need to delete a list that is no longer needed. The list cannot be recovered after deletion. |
| `LAPOSTA_GET_LIST_DETAILS` | Get List Details | Tool to retrieve specific list details by list_id. Use when you need to fetch complete information about a mailing list including its metadata, state, notification settings, and member statistics. |
| `LAPOSTA_GET_ALL_LISTS` | Get All Lists | Tool to retrieve all mailing lists from your Laposta account. Use when you need to view all lists including both active and deleted ones. |
| `LAPOSTA_UPDATE_MAILING_LIST` | Update Mailing List | Tool to modify list properties such as name, remarks, or notification emails. Use when you need to update an existing mailing list's configuration. |
| `LAPOSTA_CREATE_MEMBER` | Create Member | Tool to add a new subscriber relationship to a list with custom fields and tracking info. Use when you need to create a new member in a list or update an existing member if upsert is enabled. |
| `LAPOSTA_DELETE_MEMBER` | Delete Member | Tool to permanently remove a member from a list. Use when you need to delete a member by their ID or email address. |
| `LAPOSTA_GET_MEMBER` | Get Member | Tool to retrieve specific member details by member_id or email. Use when you need to get comprehensive information about a member from a list, including their status, registration details, and custom field values. |
| `LAPOSTA_GET_ALL_MEMBERS` | Get All Members | Tool to retrieve all members from a specified Laposta mailing list. Use when you need to list or view all contacts in a list. Optionally filter by member state (active, unsubscribed, or cleaned). |
| `LAPOSTA_UPDATE_MEMBER` | Update Member | Tool to modify member data, status, or custom fields in a Laposta list. Use when updating existing member information or managing subscription state. Supports partial updates (only modified fields need to be included). |
| `LAPOSTA_GET_ALL_CAMPAIGN_REPORTS` | Get All Campaign Reports | Tool to retrieve performance metrics for all campaigns. Use when you need campaign statistics including opens, clicks, bounces, complaints, and unsubscribes. |
| `LAPOSTA_GET_ALL_SEGMENTS` | Get All Segments | Tool to retrieve all segments from a mailing list. Use when you need to list or browse segments within a specific list. |
| `LAPOSTA_CREATE_WEBHOOK` | Create Webhook | Tool to register a new webhook for list events in Laposta. Use when you need to receive real-time notifications for subscriber events like subscriptions, modifications, or deactivations. |
| `LAPOSTA_DELETE_WEBHOOK` | Delete Webhook | Tool to permanently remove a webhook. Use when you need to delete a webhook from a list. Pending webhook requests are completed before deletion. |
| `LAPOSTA_GET_WEBHOOK_DETAILS` | Get Webhook Details | Tool to retrieve specific webhook details by webhook_id. Use when you need to inspect webhook configuration including event type, URL, and status. |
| `LAPOSTA_GET_ALL_WEBHOOKS` | Get All Webhooks | Tool to retrieve all webhooks for a specific list. Use when you need to view all webhooks configured for a particular list. |
| `LAPOSTA_UPDATE_WEBHOOK` | Update Webhook | Tool to modify webhook configuration including URL, event type, or blocked status. Use when you need to update an existing webhook's settings. |

## Supported Triggers

None listed.

## Creating MCP Server - Stand-alone vs Composio SDK

The Laposta MCP server is an implementation of the Model Context Protocol that connects your AI agent to Laposta. It provides structured and secure access so your agent can perform Laposta operations on your behalf through a secure, permission-based interface.
With Composio's managed implementation, you don't have to create your own developer app. For production, if you're building an end product, we recommend using your own credentials. The managed server helps you prototype fast and go from 0-1 faster.

## Step-by-step Guide

### 1. Prerequisites

Before starting, make sure you have:
- Composio API Key and Claude/Anthropic API Key
- Primary know-how of Claude Agents SDK
- A Laposta account
- Some knowledge of Python

### 1. Getting API Keys for Claude/Anthropic and Composio

Claude/Anthropic API Key
- Go to the [Anthropic Console](https://console.anthropic.com/settings/organization/api-keys) and create an API key. You'll need credits to use the models.
- Keep the API key safe.
Composio API Key
- Log in to the [Composio dashboard](https://dashboard.composio.dev?utm_source=toolkits&utm_medium=framework_docs).
- Navigate to your API settings and generate a new API key.
- Store this key securely as you'll need it for authentication.

### 2. Install dependencies

No description provided.
```python
pip install composio-anthropic claude-agent-sdk python-dotenv
```

```typescript
npm install @anthropic-ai/claude-agent-sdk @composio/core dotenv
```

### 3. Set up environment variables

Create a .env file in your project root.
What's happening:
- COMPOSIO_API_KEY authenticates with Composio
- USER_ID identifies the user for session management
- ANTHROPIC_API_KEY authenticates with Anthropic/Claude
```bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here
ANTHROPIC_API_KEY=your_anthropic_api_key_here
```

### 4. Import dependencies

No description provided.
```python
import asyncio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions
import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()
```

```typescript
import 'dotenv/config';
import readline from 'node:readline';
import { Composio } from '@composio/core';
import { query, type Options } from "@anthropic-ai/claude-agent-sdk";

dotenv.config();
```

### 5. Create a Composio instance and Tool Router session

No description provided.
```python
async def chat_with_remote_mcp():
    api_key = os.getenv("COMPOSIO_API_KEY")
    if not api_key:
        raise RuntimeError("COMPOSIO_API_KEY is not set")

    composio = Composio(api_key=api_key)

    # Create Tool Router session for Laposta
    mcp_server = composio.create(
        user_id=os.getenv("USER_ID"),
        toolkits=["laposta"]
    )

    url = mcp_server.mcp.url

    if not url:
        raise ValueError("Session URL not found")
```

```typescript
async function chat() {
  const { COMPOSIO_API_KEY, USER_ID } = process.env;
  if (!COMPOSIO_API_KEY || !USER_ID) {
    throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
  }

  const composio = new Composio({ apiKey: COMPOSIO_API_KEY });

  // Create Tool Router session for Laposta
  const session = await composio.create(USER_ID, {
    toolkits: ['laposta'],
  });
  const mcpUrl = session?.mcp.url;
```

### 6. Configure Claude Agent with MCP

No description provided.
```python
# Configure remote MCP server for Claude
options = ClaudeAgentOptions(
    permission_mode="bypassPermissions",
    mcp_servers={
        "composio": {
            "type": "http",
            "url": url,
            "headers": {
                "x-api-key": os.getenv("COMPOSIO_API_KEY")
            }
        }
    },
    system_prompt="You are a helpful assistant with access to Laposta tools via Composio.",
    max_turns=10
)
```

```typescript
const options: Options = {
  permissionMode: 'bypassPermissions',
  mcpServers: {
    composio: {
      type: 'http',
      url: mcpUrl,
      headers: { 'x-api-key': COMPOSIO_API_KEY }
    }
  },
  systemPrompt: 'You are a helpful assistant with access to Laposta tools via Composio.',
  maxTurns: 10,
};
```

### 7. Create client and start chat loop

No description provided.
```python
# Create client with context manager
async with ClaudeSDKClient(options=options) as client:
    print("\nChat started. Type 'exit' or 'quit' to end.\n")

    # Main chat loop
    while True:
        user_input = input("You: ").strip()
        if user_input.lower() in {"exit", "quit"}:
            print("Goodbye!")
            break

        # Send query
        await client.query(user_input)

        # Receive and print response
        print("Claude: ", end="", flush=True)
        async for message in client.receive_response():
            if hasattr(message, "content"):
                for block in message.content:
                    if hasattr(block, "text"):
                        print(block.text, end="", flush=True)
        print()
```

```typescript
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: 'You: '
  });

  console.log('\nChat started. Type "exit" to quit.\n');

  let isProcessing = false;

  async function ask(prompt: string) {
    isProcessing = true;
    rl.pause();

    process.stdout.write('Claude is thinking...');
    const stream = query({ prompt, options });

    let firstChunk = true;
    for await (const msg of stream) {
      const content = (msg as any).message?.content || (msg as any).content;
      if (Array.isArray(content)) {
        for (const block of content) {
          if (block.type === 'text' && block.text) {
            if (firstChunk) {
              process.stdout.write('\r\x1b[K');
              process.stdout.write('Claude: ');
              firstChunk = false;
            }
            process.stdout.write(block.text);
          }
        }
      }
    }
    process.stdout.write('\n\n');

    isProcessing = false;
    rl.resume();
    rl.prompt();
  }

  rl.on('line', async (line) => {
    if (isProcessing) return;

    const input = line.trim();
    if (input === 'exit') {
      rl.close();
      process.exit(0);
    }
    if (input) await ask(input);
    else rl.prompt();
  });

  await ask('What can you help me with?');
}
```

### 8. Run the application

No description provided.
```python
if __name__ == "__main__":
    asyncio.run(chat_with_remote_mcp())
```

```typescript
try {
  await chat();
} catch (error) {
  console.error(error);
  process.exit(1);
}
```

## Complete Code

```python
import asyncio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions
import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()

async def chat_with_remote_mcp():
    api_key = os.getenv("COMPOSIO_API_KEY")
    if not api_key:
        raise RuntimeError("COMPOSIO_API_KEY is not set")

    composio = Composio(api_key=api_key)

    # Create Tool Router session for Laposta
    mcp_server = composio.create(
        user_id=os.getenv("USER_ID"),
        toolkits=["laposta"]
    )

    url = mcp_server.mcp.url

    if not url:
        raise ValueError("Session URL not found")

    # Configure remote MCP server for Claude
    options = ClaudeAgentOptions(
        permission_mode="bypassPermissions",
        mcp_servers={
            "composio": {
                "type": "http",
                "url": url,
                "headers": {
                    "x-api-key": os.getenv("COMPOSIO_API_KEY")
                }
            }
        },
        system_prompt="You are a helpful assistant with access to Laposta tools via Composio.",
        max_turns=10
    )

    # Create client with context manager
    async with ClaudeSDKClient(options=options) as client:
        print("\nChat started. Type 'exit' or 'quit' to end.\n")

        # Main chat loop
        while True:
            user_input = input("You: ").strip()
            if user_input.lower() in {"exit", "quit"}:
                print("Goodbye!")
                break

            # Send query
            await client.query(user_input)

            # Receive and print response
            print("Claude: ", end="", flush=True)
            async for message in client.receive_response():
                if hasattr(message, "content"):
                    for block in message.content:
                        if hasattr(block, "text"):
                            print(block.text, end="", flush=True)
            print()

if __name__ == "__main__":
    asyncio.run(chat_with_remote_mcp())
```

```typescript
import 'dotenv/config';
import readline from 'node:readline';
import { Composio } from '@composio/core';
import { query, type Options } from "@anthropic-ai/claude-agent-sdk";

async function chat() {
  const { COMPOSIO_API_KEY, USER_ID } = process.env;
  if (!COMPOSIO_API_KEY || !USER_ID) {
    throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
  }

  const composio = new Composio({ apiKey: COMPOSIO_API_KEY });
  const session = await composio.create(USER_ID, {
    toolkits: ['laposta']
  });
  const mcp_url = session?.mcp.url;

  const options: Options = {
    permissionMode: 'bypassPermissions',
    mcpServers: {
      composio: {
        type: 'http',
        url: mcp_url,
        headers: { 'x-api-key': COMPOSIO_API_KEY }
      }
    },
    systemPrompt: 'You are a helpful assistant with access to Laposta tools via Composio.',
    maxTurns: 10,
  };

  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: 'You: '
  });

  console.log('\nChat started. Type "exit" to quit.\n');

  let isProcessing = false;

  async function ask(prompt: string) {
    isProcessing = true;
    rl.pause();

    process.stdout.write('Claude is thinking...');
    const stream = query({ prompt, options });

    let firstChunk = true;
    for await (const msg of stream) {
      const content = (msg as any).message?.content || (msg as any).content;
      if (Array.isArray(content)) {
        for (const block of content) {
          if (block.type === 'text' && block.text) {
            if (firstChunk) {
              process.stdout.write('\r\x1b[K');
              process.stdout.write('Claude: ');
              firstChunk = false;
            }
            process.stdout.write(block.text);
          }
        }
      }
    }
    process.stdout.write('\n\n');

    isProcessing = false;
    rl.resume();
    rl.prompt();
  }

  rl.on('line', async (line) => {
    if (isProcessing) return;

    const input = line.trim();
    if (input === 'exit') {
      rl.close();
      process.exit(0);
    }
    if (input) await ask(input);
    else rl.prompt();
  });

  await ask('What can you help me with?');
}

try {
  await chat();
} catch (error) {
  console.error(error);
  process.exit(1);
}
```

## Conclusion

You've successfully built a Claude Agent SDK agent that can interact with Laposta through Composio's Tool Router.
Key features:
- Native MCP support through Claude's agent framework
- Streaming responses for real-time interaction
- Permission bypass for smooth automated workflows
You can extend this by adding more toolkits, implementing custom business logic, or building a web interface around the agent.

## How to build Laposta MCP Agent with another framework

- [OpenAI Agents SDK](https://composio.dev/toolkits/laposta/framework/open-ai-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/laposta/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/laposta/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/laposta/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/laposta/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/laposta/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/laposta/framework/cli)
- [Google ADK](https://composio.dev/toolkits/laposta/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/laposta/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/laposta/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/laposta/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/laposta/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/laposta/framework/crew-ai)

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- [Ahrefs](https://composio.dev/toolkits/ahrefs) - Ahrefs is an SEO and marketing platform for site audits, keyword research, and competitor insights. It helps you improve search rankings and drive organic traffic.
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- [Benchmark email](https://composio.dev/toolkits/benchmark_email) - Benchmark Email is a platform for creating, sending, and tracking email campaigns. It's built to help you engage audiences and analyze results—all in one place.
- [Bigmailer](https://composio.dev/toolkits/bigmailer) - BigMailer is an email marketing platform for managing multiple brands with white-labeling and automation. It helps teams streamline campaigns and simplify integration with Amazon SES.
- [Brandfetch](https://composio.dev/toolkits/brandfetch) - Brandfetch is an API that delivers company logos, colors, and visual branding assets. It helps marketers and developers keep brand visuals consistent everywhere.
- [Brevo](https://composio.dev/toolkits/brevo) - Brevo is an all-in-one email and SMS marketing platform for transactional messaging, automation, and CRM. It helps businesses engage customers and streamline communications through powerful campaign tools.
- [Campayn](https://composio.dev/toolkits/campayn) - Campayn is an email marketing platform for creating, sending, and managing campaigns. It helps businesses engage contacts and grow audiences with easy-to-use tools.
- [Cardly](https://composio.dev/toolkits/cardly) - Cardly is a platform for creating and sending personalized direct mail to customers. It helps businesses break through the digital clutter by getting real engagement via physical mailboxes.
- [ClickSend](https://composio.dev/toolkits/clicksend) - ClickSend is a cloud-based SMS and email marketing platform for businesses. It streamlines communication by enabling quick message delivery and contact management.
- [Crustdata](https://composio.dev/toolkits/crustdata) - CrustData is an AI-powered data intelligence platform for real-time company and people data. It helps B2B sales teams, AI SDRs, and investors react to live business signals.
- [Curated](https://composio.dev/toolkits/curated) - Curated is a platform for collecting, curating, and publishing newsletters. It streamlines content aggregation and distribution for creators and teams.
- [Customerio](https://composio.dev/toolkits/customerio) - Customer.io is a customer engagement platform for targeted messaging across email, SMS, and push. Easily automate, segment, and track communications with your audience.
- [Cutt ly](https://composio.dev/toolkits/cutt_ly) - Cutt.ly is a URL shortening service for managing and analyzing links. Streamline your workflows with quick, trackable, and branded short URLs.
- [Demio](https://composio.dev/toolkits/demio) - Demio is webinar software built for marketers, offering both live and automated sessions with interactive features. It helps teams engage audiences and optimize lead generation through detailed analytics.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and Laposta MCP?

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

### Can I use Tool Router MCP with Claude Agent SDK?

Yes, you can. Claude Agent SDK 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 Laposta tools.

### Can I manage the permissions and scopes for Laposta while using Tool Router?

Yes, absolutely. You can configure which Laposta 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.

### How safe is my data with Composio Tool Router?

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 Laposta data and credentials are handled as safely as possible.

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)