SMTP Email Delivery Service

Available ActionsEach successful request consumes credits as outlined below.

send^5cr

Details

SMTP Mailer is a streamlined email sending service designed for AI agents and automation workflows to deliver messages through any standard SMTP server. It accepts connection credentials via an intuitive URL format supporting both plain SMTP and encrypted SMTPS connections, making configuration straightforward without complex parameter handling. Recipients can be specified as a single address, an array, or a comma-separated string, with support for CC and BCC fields for flexible distribution. The tool sends both plain text and HTML formatted emails, enabling rich content delivery including formatted newsletters, styled notifications, and branded communications. File attachments are supported through base64-encoded content with configurable MIME types for documents, images, and other media. Email priority levels allow marking messages as low, normal, or high importance for recipient mail client handling. The sender address can be explicitly set or automatically derived from the SMTP username, simplifying configuration for common use cases. This tool is optimized specifically for email delivery. For workflows requiring additional protocols such as FTP file transfers, SSH command execution, or MQTT messaging alongside email, use the Protocol Bridge tool which provides a unified interface across multiple network protocols.

Use Cases

SMTP email sending, automated email delivery, transactional email, notification email, alert email sending, AI agent email, LLM email integration, workflow email automation, HTML email sending, rich text email, formatted email delivery, email with attachments, document email delivery, PDF email attachment, image email attachment, bulk email sending, multiple recipient email, CC BCC email, email priority setting, high priority email, Gmail SMTP integration, Outlook SMTP sending, Office 365 email automation, SendGrid SMTP, Mailgun SMTP, custom SMTP server, secure email SMTPS, TLS encrypted email, email newsletter delivery, welcome email automation, password reset email, order confirmation email, shipping notification email, appointment reminder email, invoice email delivery, report email automation, scheduled email sending, webhook email trigger, chatbot email sending, customer notification, support ticket email, status update email, error alert email, monitoring notification email, email marketing automation, drip campaign email

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": "68bf8f07b0ef2f262f41dace",
    "parameters": {
      "action": "send",
      "smtp_url": "example_smtp_url",
      "to": [],
      "subject": "example_subject",
      "body": "example_body",
      "body_type": "plain",
      "priority": "normal"
    }
  }'

import requests
import json

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

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

data = {
    "product_id": "68bf8f07b0ef2f262f41dace",
    "parameters": {
        "action": "send",
        "smtp_url": "example_smtp_url",
        "to": [],
        "subject": "example_subject",
        "body": "example_body",
        "body_type": "plain",
        "priority": "normal"
    }
}

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: "68bf8f07b0ef2f262f41dace",
  parameters: {
    "action": "send",
    "smtp_url": "example_smtp_url",
    "to": [],
    "subject": "example_subject",
    "body": "example_body",
    "body_type": "plain",
    "priority": "normal"
  }
};

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: "68bf8f07b0ef2f262f41dace",
  parameters: {
    "action": "send",
    "smtp_url": "example_smtp_url",
    "to": [],
    "subject": "example_subject",
    "body": "example_body",
    "body_type": "plain",
    "priority": "normal"
  }
};

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:68bf8f07b0ef2f262f41dace
# payload:<sha256(canonical_json(parameters))>

curl -s -X POST "https://www.agentpmt.com/api/external/tools/68bf8f07b0ef2f262f41dace/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)

send^5cr10 params(4 required)

Send an email via an SMTP server. Supports plain text and HTML body formats, CC/BCC recipients, file attachments (base64-encoded), and priority levels.

smtp_urlrequiredstring

SMTP server URL with credentials. Format: smtp://username:password@hostname:port (STARTTLS, port 587) or smtps://username:password@hostname:port (SSL/TLS, port 465). Gmail requires an App Password.

torequiredarray

Recipient email address(es). At least one is required. Can also accept a single string or comma-separated string.

Array of: string

subjectrequiredstring

Email subject line.

bodyrequiredstring

Email body content. Can be plain text or HTML depending on body_type.

from_emailstring

Sender email address. Defaults to the username from smtp_url. Useful when sending from a different address than the authenticated account.

body_typestring

Email body format: 'plain' for plain text (default), 'html' for HTML content.

Values:

plainhtml

Default: plain

ccarray

CC (Carbon Copy) recipients. Visible to all recipients.

Array of: string

bccarray

BCC (Blind Carbon Copy) recipients. Hidden from other recipients.

Array of: string

attachmentsarray

File attachments (max 25MB total). Each object requires filename and base64-encoded content, with optional content_type MIME type.

Array of: object

prioritystring

Email priority level. Sets the X-Priority header: 'low' (5), 'normal' (3), or 'high' (1).

Values:

lownormalhigh

Default: normal

Usage Instructions

Usage guidance provided directly by the developer for this product.

SMTP Email Delivery Service

Name: SMTP Email Delivery Service
Brand: Apoth3osis
SKU: 68bf8f07b0ef2f262f41dace
Price: 0.05 USD
Availability: InStock

Send emails through any SMTP server with support for HTML content, attachments, CC/BCC, and priority settings.

Actions

send

Send an email via an SMTP server.

Required Fields:

Field	Type	Description
`action`	string	Must be `"send"`
`smtp_url`	string	SMTP server URL with credentials. Format: `smtp://username:password@hostname:port` for STARTTLS (port 587) or `smtps://username:password@hostname:port` for SSL/TLS (port 465).
`to`	array or string	Recipient email address(es). Accepts an array of strings, a single string, or a comma-separated string.
`subject`	string	Email subject line.
`body`	string	Email body content, plain text or HTML depending on `body_type`.

Optional Fields:

Field	Type	Default	Description
`from_email`	string	Username from `smtp_url`	Sender email address. Useful when sending from a different address than the one used for authentication.
`body_type`	string	`"plain"`	Body format: `"plain"` for plain text, `"html"` for HTML content.
`cc`	array	—	CC recipients. Array of email addresses. Visible to all recipients.
`bcc`	array	—	BCC recipients. Array of email addresses. Hidden from other recipients.
`attachments`	array	—	File attachments (max 25MB total). Each object requires `filename` (string) and `content` (base64-encoded string). Optional `content_type` (MIME type, defaults to `application/octet-stream`).
`priority`	string	`"normal"`	Email priority: `"low"`, `"normal"`, or `"high"`. Sets the X-Priority header.

Example — Send a plain text email:

{
  "action": "send",
  "smtp_url": "smtp://user:app-password@smtp.gmail.com:587",
  "to": ["recipient@example.com"],
  "subject": "Monthly Status Update",
  "body": "Hello,\n\nHere is the monthly status update.\n\nBest regards,\nThe Team"
}

Example — Send an HTML email:

{
  "action": "send",
  "smtp_url": "smtps://user:pass@smtp.example.com:465",
  "to": ["recipient@example.com"],
  "subject": "Welcome!",
  "body": "<html><body><h1>Welcome!</h1><p>Thank you for signing up.</p></body></html>",
  "body_type": "html"
}

Example — Send with CC, BCC, attachment, and high priority:

{
  "action": "send",
  "smtp_url": "smtp://user:pass@mail.example.com:587",
  "to": ["recipient@example.com"],
  "cc": ["manager@example.com"],
  "bcc": ["archive@example.com"],
  "subject": "Q1 Report",
  "body": "Please find the quarterly report attached.",
  "priority": "high",
  "attachments": [
    {
      "filename": "report.pdf",
      "content": "JVBERi0xLjQK...",
      "content_type": "application/pdf"
    }
  ]
}

Example — Multiple recipients with a custom sender:

{
  "action": "send",
  "smtp_url": "smtp://auth-user:pass@mail.company.com:587",
  "to": ["alice@example.com", "bob@example.com"],
  "from_email": "noreply@company.com",
  "subject": "Team Announcement",
  "body": "<html><body><p>Please review the updated policy.</p></body></html>",
  "body_type": "html"
}

Common Workflows

Send a notification email — Use the send action with plain text body to deliver a quick notification to one or more recipients.
Send a formatted newsletter — Set body_type to "html" and provide styled HTML content with images and links.
Distribute a report with attachments — Attach base64-encoded files (PDF, CSV, Excel) and send to recipients with CC for visibility.
Confidential distribution — Use bcc to send to multiple recipients without revealing other addresses.
Urgent communication — Set priority to "high" to flag the email as important in recipient email clients.

Important Notes

Gmail users: You must use an App Password, not your regular account password. Generate one at https://myaccount.google.com/apppasswords.
SMTP URL schemes: Use smtp:// for STARTTLS (port 587, recommended) or smtps:// for direct SSL/TLS (port 465).
Attachment size limit: Total attachment size must not exceed 25MB.
From address: Some providers (like Gmail) enforce that the sender address matches the authenticated account. Use from_email only when your provider allows sending from an alias.
Priority: Use "high" priority sparingly to avoid emails being flagged as spam.
Common MIME types for attachments: application/pdf, text/csv, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet (Excel), image/png, image/jpeg, text/plain.

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.

SMTP Email Delivery Service

Description