Lemlist MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Lemlist MCP or direct API to send personalized campaigns, manage leads, automate follow-ups, and track outreach results through natural language.

Get started for free Get a demo

Lemlist

Api Key

Lemlist is a multichannel prospecting platform for outreach via email, LinkedIn, and calls. It streamlines lead generation and boosts reply rates with personalized, automated workflows.

54 Tools

Try Lemlist now

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

TOOL ROUTER PLAYGROUND

Lemlist

Enter ↵

Try asking

TOOLS

Supported Tools

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

Create Company Note

Tool to create a note attached to a specific company.

Delete Schedule

Tool to delete a specific schedule by scheduleId.

Delete Unsubscribed Email

Tool to delete an email from the unsubscribed list.

Unsubscribe Lead From Campaign

Tool to unsubscribe a lead from a campaign.

Get All Webhooks

Tool to retrieve the list of all webhooks configured for the team.

Get Campaign By ID

Tool to retrieve a specific campaign by campaignId.

Start Campaign Export

Tool to start an asynchronous export of all campaign statistics (CSV).

Get Campaign Export Status

Tool to check the status of an asynchronous campaign export.

Get Campaign Sequences

Tool to retrieve a list of all sequences for a campaign with steps and conditions.

Get Campaign Stats

Tool to retrieve performance statistics for a specific campaign within a date range.

Get Companies Schema

Tool to retrieve the schema definition for companies in the people database.

Get Contact Messages

Tool to retrieve all messages exchanged with a specific contact.

Get Database Filters

Tool to retrieve available filters for searching the people and companies database.

Export Campaign Leads

Tool to export campaign leads with state filtering and choose between JSON or CSV output.

Export Unsubscribes

Tool to download a CSV file containing all unsubscribed email addresses.

Get Unsubscribed Email

Tool to retrieve a single unsubscribed email record.

Get Label

Tool to retrieve information about a specific label by its ID.

List Campaigns

Tool to retrieve a list of campaigns for the team.

List Tasks

Tool to retrieve all pending tasks assigned to team members.

List Team Senders

Tool to retrieve all team members and their associated campaigns.

List Watchlist Signals

Tool to retrieve paginated watchlist signals with filtering and sorting.

Get People Schema

Tool to retrieve the schema definition for people in the people database.

Retrieve Activities

Tool to fetch recent campaign activities.

Retrieve Lead By Email

Tool to retrieve a lead by their email address.

Retrieve Unsubscribes

Tool to retrieve the list of all people who are unsubscribed.

Get Team Credits

Tool to retrieve credits left in the team.

Get Team Info

Tool to retrieve information about your team.

Get User

Tool to retrieve all information for a specific user by their ID.

Get User Info

Tool to retrieve all information of the authenticated user.

List Companies

Tool to retrieve a paginated list of all companies in your CRM.

List Company Notes

Tool to retrieve all notes associated with a specific company.

List Labels

Tool to list all labels available to your team.

Mark Lead as Not Interested in Campaign

Tool to mark a lead as not interested in a specific campaign.

Update Campaign

Tool to update settings of a campaign.

Update Schedule

Tool to update an existing schedule with new parameters.

Update Sequence Step

Tool to update an existing step in a sequence (edit subject/message/delay/etc.

Add Step to Sequence

Tool to add a new step (email, LinkedIn, conditional, etc.

Add Unsubscribe Email/Domain

Tool to add an email or domain to the unsubscribed list.

Add Variables to Lead

Tool to add one or more variables to a lead.

Associate schedule with campaign

Tool to associate a schedule with a campaign.

Create Campaign

Tool to create a new campaign.

Create Label

Tool to create a new label for inbox conversations.

Create Lead In Campaign

Tool to create a lead and add it to a specific campaign.

Create Schedule

Tool to create a new schedule for the team.

Create Task

Tool to create a manual task (opportunity) associated with a contact, company, or lead.

Ignore Tasks

Tool to mark one or more tasks as ignored in Lemlist.

Mark Lead As Interested

Tool to mark a lead as interested in all campaigns.

Mark Lead As Interested In Campaign

Tool to mark a lead as interested in a specific campaign.

Mark Lead As Not Interested

Tool to mark a lead as not interested in all campaigns.

Pause a running campaign

Tool to pause a running campaign.

Pause Lead

Tool to pause a lead in all campaigns or a specific campaign.

Search Companies Database

Tool to search the companies database using filters, keywords, and pagination.

Search People Database

Tool to search the Lemlist people database using filters, keywords, and pagination.

Update Task

Tool to update an existing task including assignment, scheduling, and status.

SETUP GUIDE

Connect Lemlist MCP Tool with your Agent

Install Composio

typescript

npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai

Install the Composio SDK and your agent framework

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: ["lemlist"],
  mcp: true,
});

Create a session scoped to Lemlist and read its MCP URL and headers

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: "Export all unsubscribed email addresses to CSV",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();

Pass the session's MCP URL and headers to your agent and run a Lemlist request

SETUP GUIDE

Connect Lemlist API Tool with your Agent

Install Composio

typescript

npm install @composio/core @composio/openai openai

Install the Composio SDK, the OpenAI provider, and the OpenAI SDK

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: ["lemlist"] });
const tools = await session.tools();

Initialize Composio with the OpenAI Responses provider and create a session scoped to Lemlist

Run Lemlist tools with your agent

typescript

let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Export all unsubscribed email addresses to CSV" }],
});

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 Lemlist tool calls through the session, and print the final answer

Why Use Composio?

AI Native Lemlist Integration

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

Managed Auth

Built-in API key handling with secure storage
Central place to manage, scope, and revoke Lemlist 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 Lemlist
Scoped, least privilege access to Lemlist resources
Full audit trail of agent actions to support review and compliance

FRAMEWORKS

Use Lemlist with any AI Agent Framework

Choose a Framework you want to connect Lemlist with

Claude Code

Use Lemlist MCP with Claude Code

Claude Cowork

Use Lemlist MCP with Claude Cowork

OpenAI Agents SDK

Use Lemlist MCP with OpenAI Agents SDK

Claude Agents SDK

Use Lemlist MCP with Claude Agents SDK

Codex

Use Lemlist MCP with Codex

OpenClaw

Use Lemlist MCP with OpenClaw

Hermes

Use Lemlist MCP with Hermes

Atomic Agent

Use Lemlist MCP with Atomic Agent

Google ADK

Use Lemlist MCP with Google ADK

Langchain

Use Lemlist MCP with Langchain

AI SDK

Use Lemlist MCP with AI SDK

Mastra AI

Use Lemlist MCP with Mastra AI

LlamaIndex

Use Lemlist MCP with LlamaIndex

CrewAI

Use Lemlist MCP with CrewAI

Pydantic AI

Use Lemlist MCP with Pydantic AI

Autogen

Use Lemlist MCP with Autogen

Rolling this out across your team?

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

EXPLORE MCP GATEWAY

MORE TOOLKITS

Explore Other Toolkits

Toolkit marketplace

Aeroleads

Api Key

Aeroleads is a B2B lead generation platform for finding business emails and phone numbers. Grow your sales pipeline faster with powerful prospecting tools.

Autobound

Api Key

Autobound is an AI-powered sales engagement platform that crafts hyper-personalized outreach and insights. It helps sales teams boost response rates and close more deals through tailored content and recommendations.

Better proposals

Api Key

Better Proposals is a web-based tool for crafting and sending professional proposals. It helps teams impress clients and close deals faster with slick, easy-to-use templates.

Bidsketch

Api Key

Bidsketch is a proposal software that helps businesses create professional proposals quickly and efficiently. It streamlines the proposal process, saving time while boosting client win rates.

FAQ

Frequently asked questions

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

When you connect a Lemlist account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Lemlist 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 Lemlist. If Lemlist 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 Lemlist 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 Lemlist 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 Lemlist rejects the old key. Create a new key in Lemlist and reconnect the account from the Composio dashboard or by asking your agent to reconnect Lemlist. Nothing else changes.

Composio's free Hobby plan includes 100,000 tool calls per month with no credit card, which covers most personal Lemlist use. Paid plans add higher limits and team features. Your Lemlist 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 Lemlist accounts).

With Composio, you connect Lemlist 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 Lemlist.It takes 30 seconds.

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

Start building

Lemlist MCP server for AI agents and assistants

Try Lemlist now

Supported Tools

Connect Lemlist MCP Tool with your Agent

Install Composio

Create a session with MCP enabled

Connect your agent to the MCP server

Connect Lemlist API Tool with your Agent

Install Composio

Create a Composio session

Run Lemlist tools with your agent

Why Use Composio?

AI Native Lemlist Integration

Managed Auth

Agent Optimized Design

Enterprise Grade Security

Use Lemlist with any AI Agent Framework

Claude Code

Claude Cowork

OpenAI Agents SDK

Claude Agents SDK

Codex

OpenClaw

Hermes

Atomic Agent

Google ADK

Langchain

AI SDK

Mastra AI

LlamaIndex

CrewAI

Pydantic AI

Autogen

Rolling this out across your team?

Explore Other Toolkits

Aeroleads

Autobound

Better proposals

Bidsketch

Frequently asked questions

Do I need my own developer credentials to use Lemlist with Composio?+

Can I use multiple toolkits together?+

Is Composio secure with my Lemlist account?+

What if the API changes?+

Where do I get a Lemlist API key, and who can see it?+

Does the agent act as me inside Lemlist?+

Which Lemlist permissions does the agent get?+

Can I use multiple Lemlist accounts with Claude and ChatGPT?+

What happens if I rotate or revoke my Lemlist API key?+

Does using Lemlist through Composio cost extra?+

How is Composio different from the Lemlist connectors already built into Claude and ChatGPT?+

Start with Lemlist.It takes 30 seconds.