Clearout MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Clearout MCP or direct API to validate email addresses, find new prospects, enrich lead data, and analyze email lists through natural language.

Clearout logoClearout
Api Key

Clearout is an AI-powered service for verifying, finding, and enriching email addresses. It boosts deliverability and helps you discover high-quality leads effortlessly.

21 Tools

Try Clearout now

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

TOOL ROUTER PLAYGROUND
Clearout
Try asking
TOOLS

Supported Tools

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

Autocomplete Company to Domain

Tool to autocomplete company names to probable domains with confidence scores.

Business Account Verify

Tool to check if an email belongs to a business/work account.

Catch-All Verify

Tool to check if an email domain is catch-all.

Verify Disposable Email

Tool to check if an email is from a disposable provider.

Find Domain MX Records

Tool to retrieve MX records for a domain in priority order.

Fetch Domain WHOIS Information

Tool to fetch WHOIS record for a domain.

Bulk Email Finder

Tool to upload a CSV or XLSX contacts file for bulk email finding.

Cancel Bulk Email Finder Job

Tool to cancel a running bulk email finder job.

Bulk Email Finder Result Download

Tool to generate a bulk email finder result download URL.

Bulk Email Verify

Tool to upload a CSV or XLSX file for bulk email verification.

Cancel Bulk Email Verification Job

Cancel an in-progress bulk email verification job.

Bulk Email Verify Progress Status

Tool to retrieve progress for a bulk email verification job.

Bulk Email Verify Result Download

Tool to obtain a temporary URL for bulk email verification results.

Email Verify Get Credits

Tool to fetch available email verification credits.

Instant Email Verifier

Tool to instantly verify a single email address.

Verify Free Email Account

Tool to detect if an email is from a free email service provider.

Verify Gibberish Email

Tool to verify if an email address is gibberish.

Reverse Lookup Company by Domain

Find company information (name, logo, LinkedIn URL, address) by looking up its domain name.

Reverse Lookup Person by Email

Tool to retrieve a person’s profile from an email address.

Find Person via LinkedIn URL

Tool to discover person information via a LinkedIn profile URL.

Role Account Verifier

Tool to determine if an email is a role-based account.

SETUP GUIDE

Connect Clearout 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: ["clearout"],
  mcp: true,
});
Create a session scoped to Clearout 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 this email address is disposable and safe to use.",
  stopWhen: stepCountIs(10),
});

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

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

Run Clearout tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Verify if this email address is disposable and safe to use." }],
});

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

Why Use Composio?

AI Native Clearout Integration

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

Managed Auth

  • Built-in API key handling with secure storage
  • Central place to manage, scope, and revoke Clearout 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 Clearout
  • Scoped, least privilege access to Clearout 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, Clearout 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 Clearout 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 Clearout account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the Clearout actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside Clearout at any time.

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

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

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

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

Start building