DeBounce MCP for AI Agents

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.

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Api Key

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.

4 Tools

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TOOL ROUTER PLAYGROUND
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TOOLS

Supported Tools

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

Get Account Balance

Return the connected DeBounce account's remaining validation-credit balance.

Get API Usage

Return the aggregate number of DeBounce API validation calls in an inclusive date range.

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.

Validate Email

Validate one email address with DeBounce and return its deliverability result, reason, and remaining credit balance.

SETUP GUIDE

Connect DeBounce 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: ["debounce"],
  mcp: true,
});
Create a session scoped to DeBounce 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: "Validate the email address alex@example.com with DeBounce and explain the result.",
  stopWhen: stepCountIs(10),
});

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

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

Run DeBounce tools with your agent

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);
Send a request, execute the DeBounce tool calls through the session, and print the final answer

Why Use Composio?

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

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

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

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
FAQ

Frequently asked questions

Yes, DeBounce requires you to configure your own API key. 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.

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. Learn more.

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

Start with DeBounce.It takes 30 seconds.

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

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