# DeBounce

```json
{
  "name": "DeBounce",
  "slug": "debounce",
  "url": "https://composio.dev/toolkits/debounce",
  "markdown_url": "https://composio.dev/toolkits/debounce.md",
  "logo_url": "https://logos.composio.dev/api/debounce",
  "categories": [
    "advertising & marketing"
  ],
  "is_composio_managed": false,
  "updated_at": "2026-08-18T06:23:23.107Z"
}
```

![DeBounce logo](https://logos.composio.dev/api/debounce)

## Description

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with DeBounce MCP or direct API to validate emails, enrich contact data, check account usage, and process bulk validation lists through natural language.

## Summary

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.

## Categories

- advertising & marketing

## Toolkit Details

- Tools: 4

## Images

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

## Authentication

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

## Suggested Prompts

- Validate new signup email addresses
- Check deliverability for marketing leads
- Get remaining DeBounce account credits

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `DEBOUNCE_GET_ACCOUNT_BALANCE` | Get Account Balance | Return the connected DeBounce account's remaining validation-credit balance. |
| `DEBOUNCE_GET_API_USAGE` | Get API Usage | Return the aggregate number of DeBounce API validation calls in an inclusive date range. |
| `DEBOUNCE_GET_BULK_VALIDATION_STATUS` | Get Bulk Validation Status | Check progress for a bulk validation list created through the DeBounce Bulk API and return its result download URL when available. |
| `DEBOUNCE_VALIDATE_EMAIL` | Validate Email | Validate one email address with DeBounce and return its deliverability result, reason, and remaining credit balance. Basic validation consumes 1 credit. Profile-photo lookup can cost 1 additional credit and contact enrichment can cost 20 additional credits; both are disabled unless explicitly enabled. |

## 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 DeBounce Tools via Tool Router with Your Agent

Get tools from Tool Router session and execute DeBounce actions with your Agent
```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')

tools = session.tools
response = openai.responses.create(
  model='gpt-4.1',
  tools=tools,
  input=[{
    'role': 'user',
    'content': 'Validate the email address alex@example.com with DeBounce and explain the result.'
  }]
)
result = composio.provider.handle_tool_calls(
  response=response,
  user_id='your-user-id'
)
print(result)
```

```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');

const tools = session.tools;
const response = await openai.responses.create({
  model: 'gpt-4.1',
  tools: tools,
  input: [{
    role: 'user',
    content: 'Validate the email address alex@example.com with DeBounce and explain the result.'
  }],
});
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 DeBounce
```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 DeBounce tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('Validate the email address alex@example.com with DeBounce and explain the result.')
        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: 'Validate the email address alex@example.com with DeBounce and explain the result.'
  }],
  maxSteps: 5,
});

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

## Why Use Composio?

### 1. AI Native DeBounce Integration

- Supports both DeBounce MCP and direct API based integrations
- Structured, LLM-friendly schemas for dependable email validation workflows
- Rich coverage for validating addresses, checking usage, enriching contacts, and running bulk list checks

### 2. Managed Auth

- Secure API key handling so you don't hard-code DeBounce credentials in agent code
- Central place to manage, scope, and revoke DeBounce access
- Per user and per environment credentials for cleaner production deployments

### 3. Agent Optimized Design

- Tools are shaped for language models, so agents can pick the right DeBounce action with less guesswork
- Clear inputs and outputs make email validation results easier for agents to explain
- Comprehensive execution logs so you always know what ran, when, and on whose behalf

### 4. Enterprise Grade Security

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

## Use DeBounce with any AI Agent Framework

Choose a framework you want to connect DeBounce with:

- [ChatGPT Work](https://composio.dev/toolkits/debounce/framework/chatgpt)
- [Claude Cowork](https://composio.dev/toolkits/debounce/framework/claude-cowork)
- [Hermes](https://composio.dev/toolkits/debounce/framework/hermes-agent)

## Related Toolkits

- [Metaads](https://composio.dev/toolkits/metaads) - Metaads is Meta's official Ads API that lets you manage, analyze, and optimize your Facebook and Instagram ad campaigns. Streamline ad operations and gain deeper insights with robust automation.
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- [Beaconstac](https://composio.dev/toolkits/beaconstac) - Beaconstac is a platform for creating and managing QR codes and proximity beacons. It helps businesses engage customers and track marketing performance with powerful analytics.
- [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.
- [Deadline funnel](https://composio.dev/toolkits/deadline_funnel) - Deadline Funnel lets you create personalized deadlines and timers for your marketing campaigns. It helps marketers boost conversions by adding authentic urgency to offers.
- [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.
- [GoDaddy MCP](https://composio.dev/toolkits/godaddy_mcp) - GoDaddy MCP is a domain discovery toolkit for checking availability and generating AI-powered name ideas. Use it to move from rough business keywords to practical domain options fast.
- [Google Ads](https://composio.dev/toolkits/googleads) - Google Ads is Google's online advertising platform for creating, managing, and optimizing digital campaigns. It helps businesses reach targeted customers and maximize return on ad spend.
- [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.
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- [Linkedin Ads](https://composio.dev/toolkits/linkedin_ads) - Linkedin Ads is LinkedIn's marketing platform for creating, managing, and measuring paid campaigns across LinkedIn. It helps teams reach professional audiences with precise targeting, campaign analytics, and sponsored content tools.
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- [Reddit Ads](https://composio.dev/toolkits/reddit_ads) - Reddit Ads is Reddit's advertising platform for running paid campaigns, managing ad accounts, and tracking conversions. It helps advertisers reach high-intent communities with targeted, interest-based campaigns.
- [Segmetrics](https://composio.dev/toolkits/segmetrics) - Segmetrics is a marketing analytics platform that reveals detailed insights into your customer journeys. It helps businesses optimize marketing strategies with accurate, actionable reporting.
- [Semrush](https://composio.dev/toolkits/semrush) - Semrush is a leading SEO tool suite for keyword research, competitor analysis, and campaign tracking. It empowers marketers to improve search rankings and optimize online visibility.
- [Sendloop](https://composio.dev/toolkits/sendloop) - Sendloop is an all-in-one email marketing platform built for SaaS, e-commerce, and small businesses. It makes it easy to send campaigns, manage lists, and track results—all in one place.

## Frequently Asked Questions

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

Yes, DeBounce 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)