Kickbox MCP for AI Agents

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Kickbox MCP or direct API to verify email addresses, clean mailing lists, score email quality, and reduce bounce rates through natural language.

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Api Key

Kickbox is a real-time email verification and list cleaning service. It helps ensure your emails reach real, active inboxes and improves deliverability.

2 Tools

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TOOL ROUTER PLAYGROUND
Kickbox
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TOOLS

Supported Tools

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

Check Disposable Email

Tool to check if an email address or domain is from a disposable email service.

Kickbox Single Verification

Tool to verify a single email address via Kickbox.

SETUP GUIDE

Connect Kickbox 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: ["kickbox"],
  mcp: true,
});
Create a session scoped to Kickbox 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 john.doe@email.com is a valid email address",
  stopWhen: stepCountIs(10),
});

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

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

Run Kickbox tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Verify if john.doe@email.com is a valid email address" }],
});

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

Why Use Composio?

AI Native Kickbox Integration

  • Supports both Kickbox MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for email verification, list cleaning, and quality scoring

Managed Auth

  • Built-in API key management with automatic rotation
  • Central place to manage and revoke Kickbox credentials
  • Per user and per environment keys instead of hard-coding

Agent Optimized Design

  • Tools are tuned using real error and success rates to maximize reliability
  • Comprehensive logs so you always know which emails were verified and when

Enterprise Grade Security

  • Fine-grained RBAC lets you control which agents can access Kickbox
  • Scoped, least privilege access to Kickbox resources
  • Full audit trail of agent actions for review and compliance
FAQ

Frequently asked questions

Yes, Kickbox 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.

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.

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