# 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": "2026-10-04T14:49:47.133Z"
}
```

![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, the OpenAI provider, and the OpenAI SDK
```python
pip install composio composio_openai openai
```

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

#### Path 1, Step 2: Create a Composio session

Initialize Composio with the OpenAI Responses provider and create a session scoped to DeBounce
```python
import json
from openai import OpenAI
from composio import Composio
from composio_openai import OpenAIResponsesProvider

composio = Composio(provider=OpenAIResponsesProvider())
client = OpenAI()

session = composio.create(user_id="your-user-id", toolkits=["debounce"])
tools = session.tools()
```

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

#### Path 1, Step 3: Run DeBounce tools with your agent

Send a request, execute the DeBounce tool calls through the session, and print the final answer
```python
response = client.responses.create(
    model="gpt-5.6-sol",
    tools=tools,
    input=[{"role": "user", "content": "Validate the email address alex@example.com with DeBounce and explain the result."}],
)

while True:
    tool_calls = [o for o in response.output if o.type == "function_call"]
    if not tool_calls:
        break
    results = composio.provider.handle_tool_calls(response=response, session=session)
    response = client.responses.create(
        model="gpt-5.6-sol",
        tools=tools,
        previous_response_id=response.id,
        input=[
            {"type": "function_call_output", "call_id": call.call_id, "output": json.dumps(results[i])}
            for i, call in enumerate(tool_calls)
        ],
    )

print(response.output_text)
```

```typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Validate the email address alex@example.com with DeBounce and explain the result." }],
});

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);
```

### Path 2: MCP Server Setup

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

Install the Composio SDK and your agent framework
```python
pip install composio claude-agent-sdk
```

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

#### Path 2, Step 2: Create a session with MCP enabled

Create a session scoped to DeBounce and read its MCP URL and headers
```python
from composio import Composio

composio = Composio()
session = composio.create(user_id="your-user-id", toolkits=["debounce"], mcp=True)
```

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

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["debounce"],
  mcp: true,
});
```

#### Path 2, Step 3: Connect your agent to the MCP server

Pass the session's MCP URL and headers to your agent and run a DeBounce request
```python
import asyncio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions, AssistantMessage, TextBlock

options = ClaudeAgentOptions(
    mcp_servers={
        "composio": {
            "type": "http",
            "url": session.mcp.url,
            "headers": session.mcp.headers,
        }
    },
    system_prompt="You are a helpful assistant with access to DeBounce tools.",
    tools=[],
    allowed_tools=["mcp__composio__*"],
)

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 isinstance(message, AssistantMessage):
                for block in message.content:
                    if isinstance(block, TextBlock):
                        print(block.text)

asyncio.run(main())
```

```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: "Validate the email address alex@example.com with DeBounce and explain the result.",
  stopWhen: stepCountIs(10),
});

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

## 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](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)
- [Atomic Agent](https://composio.dev/toolkits/debounce/framework/atomic-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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- [AdRoll](https://composio.dev/toolkits/adroll) - AdRoll is a digital marketing platform for managing advertising campaigns, audiences, and account-based marketing. It helps marketers retarget customers across channels and measure performance.
- [Adtraction](https://composio.dev/toolkits/adtraction) - Adtraction is an affiliate marketing platform for partner programs, tracking links, transactions, commissions, statistics, and payments. It helps advertisers and publishers manage performance marketing with clear reporting and payout workflows.
- [Adyntel](https://composio.dev/toolkits/adyntel) - Adyntel is an API that retrieves LinkedIn ads for any company using a domain or LinkedIn Page ID. Easily access competitive ad intelligence to power your marketing workflows.
- [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.
- [Elastic Email](https://composio.dev/toolkits/elastic_email) - Elastic Email is an email delivery and marketing platform for transactional emails, campaigns, contacts, and reporting. Use it to send reliable emails, manage audiences, verify addresses, and track performance.
- [Fairing](https://composio.dev/toolkits/fairing) - Fairing is a post-purchase survey and attribution platform for ecommerce brands. It helps teams measure which marketing channels, campaigns, and customer touchpoints drive purchases.
- [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.
- [Handwrite.io](https://composio.dev/toolkits/handwrite) - Handwrite.io is a direct mail service for creating physical handwritten card orders. It helps teams send personal cards with selectable handwriting, stationery, and tracking.
- [Inblog](https://composio.dev/toolkits/inblog) - Inblog is an AI-powered blogging platform for posts, authors, tags, redirects, design settings, analytics, and lead forms. Use it to manage SEO-focused content, measure performance, and capture blog leads in one place.
- [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.

## 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)