Verifi.Email MCP for AI Agents

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Verifi.Email MCP or direct API to validate email addresses, check domain security records, flag risky contacts, and clean lead lists through natural language.

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Api Key

Verifi.Email is a public API for validating email addresses and checking domain mail-security records. Use it to screen bad emails and catch missing SPF, DKIM, or DMARC setup fast.

3 Tools

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TOOL ROUTER PLAYGROUND
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TOOLS

Supported Tools

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

Check Domain Health

Check a bare domain's SPF, DKIM, DMARC, and BIMI configuration and return protocol scores plus provider recommendations.

Validate Email

Validate one non-empty email address and return its overall validity plus syntax, MX, spoofing, and disposable-address signals.

Validate Emails

Validate 1-10 email address strings in one synchronous request and return one ordered result per input, including malformed strings as invalid results.

SETUP GUIDE

Connect Verifi.Email 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: ["verifi_email"],
  mcp: true,
});
Create a session scoped to Verifi.Email 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 support@example.com and check its domain security",
  stopWhen: stepCountIs(10),
});

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

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

Run Verifi.Email tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Validate support@example.com and check its domain security" }],
});

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 Verifi.Email tool calls through the session, and print the final answer

Why Use Composio?

AI Native Verifi.Email Integration

  • Supports both Verifi.Email MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable email validation and domain-security checks
  • Rich coverage for verifying addresses, checking deliverability signals, and reviewing SPF, DKIM, and DMARC setup

Managed Auth

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

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Clear schemas help agents choose the right Verifi.Email action for validation, lookup, and security checks
  • 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 Verifi.Email
  • Scoped, least privilege access to Verifi.Email resources
  • Full audit trail of agent actions to support review and compliance
FAQ

Frequently asked questions

Yes, Verifi.Email 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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