Email Address Validation - Single

Available ActionsEach successful request consumes credits as outlined below.

verify^5cr

Details

Verify the validity and deliverability of individual email addresses. The verification process performs multiple checks including syntax validation, DNS and MX record lookup to confirm the domain can receive mail, and SMTP-level verification that connects to the recipient's mail server to check if the specific mailbox exists—all without sending an actual email. Additional checks detect disposable and temporary email providers, identify role-based addresses like info@ or support@, recognize known spam traps, and reference historical bounce data. Returns verification status (valid, invalid, disposable, catchall, or unknown), flags for potential issues, suggested corrections for typos, and optional metadata including address parsing details.

Use Cases

Form validation for user registration and signups, cleaning email lists before campaigns, reducing bounce rates for email marketing, preventing fake account creation, validating customer contact information at point of entry, detecting typos and suggesting corrections, lead qualification and CRM data hygiene, checkout flow email verification for e-commerce.

Connect Your Agent In 5 Min

Watch the setup guide for your platform

Or Install Locally

STDIO connector for Claude Code, Codex, Cursor, Zed, and other LLMs that require STDIO or custom connections. This lightweight connector routes requests to https://api.agentpmt.com/mcp. All tool execution happens in the cloud and the server cannot edit any files on your computer.

npm install -g @agentpmt/mcp-routeragentpmt-setup

curl -X POST "https://api.agentpmt.com/products/purchase" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer ********" \
  -d '{
    "product_id": "69509103119f659009bc8693",
    "parameters": {
      "action": "verify",
      "email": "example_email",
      "address_info": true,
      "credits_info": true,
      "timeout": 10
    }
  }'

import requests
import json

url = "https://api.agentpmt.com/products/purchase"

headers = {
    "Content-Type": "application/json",
    "Authorization": "Bearer ********"
}

data = {
    "product_id": "69509103119f659009bc8693",
    "parameters": {
        "action": "verify",
        "email": "example_email",
        "address_info": true,
        "credits_info": true,
        "timeout": 10
    }
}

response = requests.post(url, headers=headers, json=data)
print(response.status_code)
print(response.json())

const url = "https://api.agentpmt.com/products/purchase";

const headers = {
  "Content-Type": "application/json",
  "Authorization": "Bearer ********"
};

const data = {
  product_id: "69509103119f659009bc8693",
  parameters: {
    "action": "verify",
    "email": "example_email",
    "address_info": true,
    "credits_info": true,
    "timeout": 10
  }
};

fetch(url, {
  method: "POST",
  headers,
  body: JSON.stringify(data)
})
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error("Error:", error));

const axios = require('axios');

const url = "https://api.agentpmt.com/products/purchase";

const headers = {
  "Content-Type": "application/json",
  "Authorization": "Bearer ********"
};

const data = {
  product_id: "69509103119f659009bc8693",
  parameters: {
    "action": "verify",
    "email": "example_email",
    "address_info": true,
    "credits_info": true,
    "timeout": 10
  }
};

axios.post(url, data, { headers })
  .then(response => {
    console.log(response.status);
    console.log(response.data);
  })
  .catch(error => {
    console.error("Error:", error.message);
  });

Login to view your API and budget keys. The example above uses placeholder values. Sign in to see personalized code with your bearer token.

This tool supports credit-based access for external agents using AgentAddress identities or standard crypto wallets. External agents should use the External Agent API to buy credits with x402 and invoke this tool.

1. Buy Credits

Purchase credits via x402 payment (500 credit minimum, 100 credits = $1).

# Request payment requirements (returns 402 + PAYMENT-REQUIRED header)
curl -i -s -X POST "https://www.agentpmt.com/api/external/credits/purchase" \
  -H "Content-Type: application/json" \
  -d '{ "wallet_address":"0xYOUR_WALLET", "credits": 500, "payment_method":"x402" }'

# Sign the EIP-3009 authorization, then retry with signature header
curl -s -X POST "https://www.agentpmt.com/api/external/credits/purchase" \
  -H "Content-Type: application/json" \
  -H "PAYMENT-SIGNATURE: <base64-json>" \
  -d '{ "wallet_address":"0xYOUR_WALLET", "credits": 500, "payment_method":"x402" }'

2. Create a Session Nonce (nonce used in signed balance/invoke)

curl -s -X POST "https://www.agentpmt.com/api/external/auth/session" \
  -H "Content-Type: application/json" \
  -d '{ "wallet_address":"0xYOUR_WALLET" }'

3. Invoke This Tool

Sign the message with your wallet (EIP-191 personal-sign), then POST to the invoke endpoint.

# Sign this message (wallet MUST be lowercased):
# agentpmt-external
# wallet:0xyourwallet...
# session:<session_nonce>
# request:<request_id>
# action:invoke
# product:69509103119f659009bc8693
# payload:<sha256(canonical_json(parameters))>

curl -s -X POST "https://www.agentpmt.com/api/external/tools/69509103119f659009bc8693/invoke" \
  -H "Content-Type: application/json" \
  -d '{
    "wallet_address": "0xYOUR_WALLET",
    "session_nonce": "<session_nonce>",
    "request_id": "invoke-uuid",
    "signature": "0x<signature>",
    "parameters": {
      "action": "your_action",
      "your_param": "value"
    }
  }'

Actions(1)

verify^5cr4 params(1 required)

Verify a single email address for deliverability and validity. Performs syntax validation, DNS/MX record lookup, and SMTP-level mailbox verification without sending an email.

emailrequiredstring

The email address to verify.

address_infoboolean

Include additional address metadata such as free email provider detection and role account identification. Default: true.

Default: true

credits_infoboolean

Include remaining credit balance in the response. Default: true.

Default: true

timeoutinteger

Request timeout in seconds. Default: 10.

Default: 10

Range: 1 - 30

Usage Instructions

Usage guidance provided directly by the developer for this product.

Email Address Validation - Single

Name: Email Address Validation - Single
Brand: Apoth3osis
SKU: 69509103119f659009bc8693
Price: 0.05 USD
Availability: InStock

Verify individual email addresses for deliverability and validity. Returns detailed results including whether the email is valid, invalid, disposable, or a catch-all, along with optional address metadata and account credit balance.

Actions

verify

Validate a single email address and get a deliverability result.

Required Fields:

action (string): "verify"
email (string): The email address to verify

Optional Fields:

address_info (boolean, default: true): Include additional address metadata (e.g., free email provider, role account detection)
credits_info (boolean, default: true): Include remaining credit balance in the response
timeout (integer, default: 10, range: 1-30): Request timeout in seconds

Example - Basic verification:

{
  "action": "verify",
  "email": "jane.doe@example.com"
}

Example - Verification without extra metadata:

{
  "action": "verify",
  "email": "support@company.org",
  "address_info": false,
  "credits_info": false
}

Example - Verification with extended timeout:

{
  "action": "verify",
  "email": "user@slow-mail-server.net",
  "timeout": 25
}

Response Fields

email: The email address that was checked
result: Verification result (e.g., "valid", "invalid", "disposable", "catchall", "unknown")
flags: Array of flags providing additional context about the address
suggested_correction: A suggested spelling correction if a typo is detected (or null)
execution_time: Time taken to verify the address in milliseconds
address_info (when enabled): Additional metadata about the address such as whether it is a free provider or role account
credits_info (when enabled): Remaining verification credits on the account

Common Workflows

Pre-send email validation: Verify an email address before sending a message to reduce bounces.
Form input validation: Check an email submitted through a signup or contact form for deliverability.
CRM data hygiene: Spot-check individual contacts in a CRM to confirm addresses are still valid.
Typo detection: Use the suggested_correction field to catch common misspellings (e.g., "gmial.com" -> "gmail.com").

Important Notes

Each verification consumes one credit.
Results are real-time checks against the mail server; transient server issues may return "unknown".
For verifying large batches of emails, use the bulk email verification product instead.
The timeout parameter controls how long to wait for the remote mail server to respond. Increase it for servers known to be slow.

About The Developer

Apoth3osis

★15 stars

Joined Agent Payment: August 14, 2025

We build tools that enable AI agents to excel in the mathematical realm.

Our small team develops experimental and unique solutions in the AI arena, with a strong focus on modular computing for agentic applications and custom model deployment. We have handled projects for a variety of applications across many sectors, from algorithmic trading and financial analysis, to molecular simulations and predictions, to habitat and biodiversity monitoring and wildlife conservation.

Email Address Validation - Single

Description