Listclean MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Listclean MCP or direct API to verify email addresses, clean bulk email lists, check deliverability status, and generate actionable list health reports through natural language.

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Api Key

Listclean is an email verification service that helps you validate and clean up your email lists. It improves deliverability and protects your sender reputation by removing invalid addresses.

16 Tools

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

TOOL ROUTER PLAYGROUND
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TOOLS

Supported Tools

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

Create Bulk Verification List

Tool to create a CSV file with provided email addresses for bulk verification.

Delete List

Tool to permanently delete a single list from the account.

Download List Results as CSV

Tool to download list results as a CSV file.

Download List Results as JSON

Tool to download list results as JSON.

Get Account Profile

Tool to retrieve the authenticated account's profile.

Get Remaining Credits

Tool to retrieve remaining verification credits.

Get List Information

Tool to retrieve detailed information for a specific list.

Get Upload Status

Tool to retrieve the status of a specific upload.

Get Verification Logs

Tool to retrieve logs for all single email verifications.

List All Verification Lists

Tool to retrieve all email verification lists.

List CSV Uploads

Tool to retrieve the list of CSV uploads.

Start Upload

Tool to start a CSV upload process for bulk email verification.

Update Account Profile

Tool to update account profile details.

Upload Chunk

Tool to upload a chunk of a CSV file.

Verify Batch of Emails

Tool to verify a batch of email addresses (max 3000 emails).

Verify Email Address

Tool to verify an email's validity.

SETUP GUIDE

Connect Listclean 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: ["listclean"],
  mcp: true,
});
Create a session scoped to Listclean 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: "Verify if john.doe@email.com is a valid email address",
  stopWhen: stepCountIs(10),
});

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

Connect Listclean 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: ["listclean"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to Listclean
3

Run Listclean tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Verify if john.doe@email.com is a valid email address" }],
});

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

Why Use Composio?

AI Native Listclean Integration

  • Supports both Listclean MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for verifying, cleaning, and analyzing your email lists

Managed Auth

  • Centralized API key management with secure storage
  • Easily scope and revoke Listclean access per user or environment
  • No more hard-coded API keys in your codebase

Agent Optimized Design

  • Tools tuned for high accuracy in bulk list operations
  • Comprehensive logs for every verification and cleaning run

Enterprise Grade Security

  • Fine-grained RBAC to control which agents and users can verify or clean lists
  • Scoped, least privilege Listclean access for every integration
  • Full audit trail for compliance and review of email hygiene actions

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

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

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

With Composio, you connect Listclean 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.

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