Laposta MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Laposta MCP or direct API to manage subscriber lists, send campaigns, view reports, and organize contacts through natural language.

Laposta logoLaposta
Api Key

Laposta is a Dutch newsletter platform for creating and sending professional newsletters. It makes email marketing simple and efficient for teams and businesses.

25 Tools

Try Laposta now

Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
Laposta
Try asking
TOOLS

Supported Tools

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

Get All Campaigns

Retrieve all email campaigns from your Laposta account.

Create Custom Field

Tool to create a custom field for a mailing list to define subscriber attributes.

Delete Field

Tool to permanently remove a custom field from a mailing list.

Get Field Details

Tool to retrieve specific field details by field_id.

Get All Fields

Tool to retrieve all fields for a specific list in Laposta.

Update Field

Tool to modify field configuration in a Laposta list.

Get Segment Details

Tool to retrieve specific segment details by segment_id.

Clear All Members From List

Tool to clear all active members from a list.

Create Mailing List

Tool to create a new mailing list in Laposta to manage email subscribers.

Delete List

Permanently deletes a mailing list from Laposta.

Get List Details

Tool to retrieve specific list details by list_id.

Get All Lists

Tool to retrieve all mailing lists from your Laposta account.

Update Mailing List

Tool to modify list properties such as name, remarks, or notification emails.

Create Member

Tool to add a new subscriber relationship to a list with custom fields and tracking info.

Delete Member

Tool to permanently remove a member from a list.

Get Member

Tool to retrieve specific member details by member_id or email.

Get All Members

Tool to retrieve all members from a specified Laposta mailing list.

Update Member

Tool to modify member data, status, or custom fields in a Laposta list.

Get All Campaign Reports

Tool to retrieve performance metrics for all campaigns.

Get All Segments

Tool to retrieve all segments from a mailing list.

Create Webhook

Tool to register a new webhook for list events in Laposta.

Delete Webhook

Tool to permanently remove a webhook.

Get Webhook Details

Tool to retrieve specific webhook details by webhook_id.

Get All Webhooks

Tool to retrieve all webhooks for a specific list.

Update Webhook

Tool to modify webhook configuration including URL, event type, or blocked status.

SETUP GUIDE

Connect Laposta MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai
Install the Composio SDK and your agent framework
2

Create a session with MCP enabled

typescript
import { Composio } from "@composio/core";

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["laposta"],
  mcp: true,
});
Create a session scoped to Laposta and read its MCP URL and headers
3

Connect your agent to the MCP server

typescript
import { createMCPClient } from "@ai-sdk/mcp";
import { openai } from "@ai-sdk/openai";
import { generateText, stepCountIs } from "ai";

const client = await createMCPClient({
  transport: { type: "http", url: mcp.url, headers: mcp.headers },
});

const { text } = await generateText({
  model: openai("gpt-5.6-sol"),
  tools: await client.tools(),
  prompt: "Add a new subscriber to Laposta list \"Newsletter Subscribers\" with email john.doe@example.com.",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();
Pass the session's MCP URL and headers to your agent and run a Laposta request
SETUP GUIDE

Connect Laposta API Tool with your Agent

1

Install Composio

typescript
npm install @composio/core @composio/openai openai
Install the Composio SDK, the OpenAI provider, and the OpenAI SDK
2

Create a Composio session

typescript
import OpenAI from "openai";
import { Composio } from "@composio/core";
import { OpenAIResponsesProvider } from "@composio/openai";

const composio = new Composio({ provider: new OpenAIResponsesProvider() });
const client = new OpenAI();

const session = await composio.create("your-user-id", { toolkits: ["laposta"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to Laposta
3

Run Laposta tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Add a new subscriber to Laposta list \"Newsletter Subscribers\" with email john.doe@example.com." }],
});

while (response.output.some((o) => o.type === "function_call")) {
  const outputs = await composio.provider.handleToolCalls(session, response.output);
  response = await client.responses.create({
    model: "gpt-5.6-sol",
    tools,
    previous_response_id: response.id,
    input: outputs,
  });
}

console.log(response.output_text);
Send a request, execute the Laposta tool calls through the session, and print the final answer

Why Use Composio?

AI Native Laposta Integration

  • Supports both Laposta MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for reading, writing, and querying your Laposta data

Managed Auth

  • Built-in API key handling with secure storage
  • Central place to manage, scope, and revoke Laposta access
  • Per user and per environment credentials instead of hard-coded keys

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Laposta
  • Scoped, least privilege access to Laposta resources
  • Full audit trail of agent actions to support review and compliance

Rolling this out across your team?

Give your team centralized access control across every framework with Composio’s MCP Gateway.

EXPLORE MCP GATEWAY
FAQ

Frequently asked questions

Yes, Laposta requires you to configure your own API key credentials. Once set up, Composio handles secure credential storage and API request handling for you.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Yes. Composio is SOC 2 Type II compliant and is built to keep your Laposta connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

Create the key in your Laposta account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the Laposta actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside Laposta at any time.

When you connect a Laposta account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Laposta as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Whatever the credentials you connect allow inside Laposta. If Laposta lets you scope a key to specific permissions, create a scoped one so the agent can only do what you intend. You can revoke the key inside Laposta at any time.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each Laposta connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

The connection stops working the moment Laposta rejects the old key. Create a new key in Laposta and reconnect the account from the Composio dashboard or by asking your agent to reconnect Laposta. Nothing else changes.

Composio's free Hobby plan includes 100,000 tool calls per month with no credit card, which covers most personal Laposta use. Paid plans add higher limits and team features. Your Laposta plan and its API limits still apply as usual.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple Laposta accounts).

With Composio, you connect Laposta once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

Start with Laposta.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Laposta tool your agent needs.Free to start.

Start building