# MyEmailVerifier

```json
{
  "name": "MyEmailVerifier",
  "slug": "myemailverifier",
  "url": "https://composio.dev/toolkits/myemailverifier",
  "markdown_url": "https://composio.dev/toolkits/myemailverifier.md",
  "logo_url": "https://logos.composio.dev/api/myemailverifier",
  "categories": [
    "advertising & marketing"
  ],
  "is_composio_managed": false,
  "updated_at": "2026-08-20T15:33:14.576Z"
}
```

![MyEmailVerifier logo](https://logos.composio.dev/api/myemailverifier)

## Description

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with MyEmailVerifier MCP or direct API to verify email deliverability, detect disposable addresses, flag role-based accounts, and check catch-all or greylisted status through natural language.

## Summary

MyEmailVerifier is an email verification service that checks deliverability, disposable addresses, role accounts, catch-all domains, and greylisting.
Use it to reduce bounces, protect sender reputation, and improve lead quality before you send.

## Categories

- advertising & marketing

## Toolkit Details

- Tools: 2

## Images

- Logo: https://logos.composio.dev/api/myemailverifier

## Authentication

- **Api Key**
  - Type: `api_key`
  - Description: Api Key authentication for MyEmailVerifier.
  - Setup:
    - Configure Api Key credentials for MyEmailVerifier.
    - Use the credentials when creating an auth config in Composio.

## Suggested Prompts

- Verify signup email deliverability before onboarding
- Flag disposable emails in lead lists
- Check catch-all status for customer domains

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `MYEMAILVERIFIER_VERIFY_EMAIL` | Verify Email | Verify one email address for deliverability and return MyEmailVerifier's status, diagnosis, and risk flags. Each request consumes one verification credit. |
| `MYEMAILVERIFIER_VERIFY_EMAILS` | Verify Emails | Verify 1 to 5 email addresses serially and return one ordered outcome per input. Each provider request is expected to consume one verification credit; locally invalid and unattempted items consume none. |

## Supported Triggers

None listed.

## Installation and MCP Setup

### Path 1: SDK Installation

#### Path 1, Step 1: Install Composio

Install the Composio SDK
```python
pip install composio_openai
```

```typescript
npm install @composio/openai
```

#### Path 1, Step 2: Initialize Composio and Create Tool Router Session

Import and initialize Composio client, then create a Tool Router session
```python
from openai import OpenAI
from composio import Composio
from composio_openai import OpenAIResponsesProvider

composio = Composio(provider=OpenAIResponsesProvider())
openai = OpenAI()
session = composio.create(user_id='your-user-id')
```

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

const composio = new Composio({
  provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');
```

#### Path 1, Step 3: Execute MyEmailVerifier Tools via Tool Router with Your Agent

Get tools from Tool Router session and execute MyEmailVerifier actions with your Agent
```python
tools = session.tools
response = openai.responses.create(
  model='gpt-4.1',
  tools=tools,
  input=[{
    'role': 'user',
    'content': 'Verify lead@example.com with MyEmailVerifier and report deliverability, disposable, role-based, catch-all, and greylisted status'
  }]
)
result = composio.provider.handle_tool_calls(
  response=response,
  user_id='your-user-id'
)
print(result)
```

```typescript
const tools = session.tools;
const response = await openai.responses.create({
  model: 'gpt-4.1',
  tools: tools,
  input: [{
    role: 'user',
    content: 'Verify lead@example.com with MyEmailVerifier and report deliverability, disposable, role-based, catch-all, and greylisted status'
  }],
});
const result = await composio.provider.handleToolCalls(
  'your-user-id',
  response.output
);
console.log(result);
```

### Path 2: MCP Server Setup

#### Path 2, Step 1: Install Composio

Install the Composio SDK for Python or TypeScript
```python
pip install composio claude-agent-sdk
```

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

#### Path 2, Step 2: Initialize Client and Create Tool Router Session

Import and initialize the Composio client, then create a Tool Router session for MyEmailVerifier
```python
from composio import Composio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions

composio = Composio(api_key='your-composio-api-key')
session = composio.create(user_id='your-user-id')
url = session.mcp.url
```

```typescript
import { Composio } from '@composio/core';

const composio = new Composio({ apiKey: 'your-api-key' });
const session = await composio.create('your-user-id');
console.log(`Tool Router session created: ${session.mcp.url}`);
```

#### Path 2, Step 3: Connect to AI Agent

Use the MCP server with your AI agent (Anthropic Claude or Mastra)
```python
import asyncio

options = ClaudeAgentOptions(
    permission_mode='bypassPermissions',
    mcp_servers={
        'tool_router': {
            'type': 'http',
            'url': url,
            'headers': {
                'x-api-key': 'your-composio-api-key'
            }
        }
    },
    system_prompt='You are a helpful assistant with access to MyEmailVerifier tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('Verify lead@example.com with MyEmailVerifier and report deliverability, disposable, role-based, catch-all, and greylisted status')
        async for message in client.receive_response():
            if hasattr(message, 'content'):
                for block in message.content:
                    if hasattr(block, 'text'):
                        print(block.text)

asyncio.run(main())
```

```typescript
import { openai } from '@ai-sdk/openai';
import { experimental_createMCPClient as createMCPClient } from '@ai-sdk/mcp';
import { generateText } from 'ai';

const client = await createMCPClient({
  transport: {
    type: 'http',
    url: session.mcp.url,
    headers: {
      'x-api-key': 'your-composio-api-key',
    },
  },
});

const tools = await client.tools();
const { text } = await generateText({
  model: openai('gpt-4o'),
  tools,
  messages: [{
    role: 'user',
    content: 'Verify lead@example.com with MyEmailVerifier and report deliverability, disposable, role-based, catch-all, and greylisted status'
  }],
  maxSteps: 5,
});

console.log(`Agent: ${text}`);
```

## Why Use Composio?

### 1. AI Native MyEmailVerifier Integration

- Supports both MyEmailVerifier MCP and direct API based integrations
- Structured, LLM-friendly schemas for reliable email verification workflows
- Rich coverage for checking deliverability, disposable emails, role accounts, catch-all domains, and greylisted status

### 2. Managed Auth

- Secure API key handling without hard-coding MyEmailVerifier credentials in your agent code
- Central place to manage, scope, and revoke MyEmailVerifier access
- Per user and per environment credentials so your staging and production agents stay cleanly separated

### 3. Agent Optimized Design

- Tools are tuned for clear inputs and outputs, so agents can act on email risk signals with fewer mistakes
- Comprehensive execution logs so you always know which email was checked, when, and on whose behalf

### 4. Enterprise Grade Security

- Fine-grained RBAC so you control which agents and users can access MyEmailVerifier
- Scoped, least privilege access for email verification workflows
- Full audit trail of agent actions to support review, compliance, and sender reputation checks

## Use MyEmailVerifier with any AI Agent Framework

Choose a framework you want to connect MyEmailVerifier with:

None listed.

## Related Toolkits

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- [Bouncify](https://composio.dev/toolkits/bouncify) - Bouncify is an email verification service for single addresses and bulk lists. Use it to reduce bounces, protect sender reputation, and track verification credits.
- [Bulk Email Checker](https://composio.dev/toolkits/bulk_email_checker) - Bulk Email Checker is an email verification service for checking address validity, mailbox status, domains, and mail-server signals. It helps reduce bounces, spot risky emails, and keep outreach lists cleaner before you send.
- [Campaign cleaner](https://composio.dev/toolkits/campaign_cleaner) - Campaign cleaner is an email campaign optimization tool that boosts compatibility and deliverability across email clients. It helps marketers get better results by cleaning, enhancing, and ensuring high performance for every campaign.
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- [DeBounce](https://composio.dev/toolkits/debounce) - DeBounce is an email verification service for checking address validity, deliverability, and risk. It helps keep contact lists clean so your campaigns reach real inboxes.
- [Easy Email Verification](https://composio.dev/toolkits/easy_email_verification) - Easy Email Verification is an email validation service for checking single addresses and bulk lists. Use it to reduce bounces, clean contact data, and protect sender reputation.
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- [Instantly](https://composio.dev/toolkits/instantly) - Instantly is a platform for automating cold email outreach, managing leads, and optimizing deliverability. Get better results from email campaigns with minimal manual effort.
- [Invalid Bounce](https://composio.dev/toolkits/invalid_bounce) - Invalid Bounce is an email verification service with a bulk verification API. Use it to clean email lists, reduce bounces, and protect sender reputation.
- [Keyword](https://composio.dev/toolkits/keyword) - Keyword.com is a digital marketing platform for search rank tracking and SEO analytics. Use it to monitor keyword performance, spot ranking changes, and measure SEO visibility.
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## Frequently Asked Questions

### Do I need my own developer credentials to use MyEmailVerifier with Composio?

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

### Can I use multiple toolkits together?

Yes! Composio's Tool Router enables agents to use multiple toolkits. [Learn more](https://docs.composio.dev/tool-router/overview).

### Is Composio secure?

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. [Learn more](https://trust.composio.dev).

### What if the API changes?

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

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