Email & SMS Marketing Cost Calculator MCP

An independent calculator that estimates the monthly cost of email and SMS marketing platforms for a given list size, monthly email volume and SMS destination country. Prices come from each vendor's official pricing page; every price shows the date it was checked and its source URL.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Community listingStreamable HTTPNo sign-inEndpoint checked 2026-11-01Published by money-tools-jp

MCP endpoint (Streamable HTTP)

https://email-sms-cost-mcp.money-tools.workers.dev/mcp

Vendor documentation

What you can do with it

Estimate monthly marketing costs for specific platforms
Compare costs across 11 vendors like Mailchimp and HubSpot
List available marketing vendors via API

Source and maintenance

Community listingRegistry 1.0.0

mcp-registry: io.github.money-tools-jp/email-sms-cost@1.0.0 Project website

Protocol and capabilities

Server: email-sms-cost-mcp 0.1.0
MCP protocol: 2025-06-18
Tools: 2 advertised
Resources: Not advertised
Resource templates: Not advertised
Prompts: Not advertised

Server-advertised capabilities

{
  "tools": {
    "listChanged": false
  }
}

Tools

2 advertised

estimate_cost — Estimate email & SMS marketing cost

Advertised by the server during the last successful anonymous check.

Advertised read-only

Estimated monthly list price (USD, before tax, monthly billing) of email marketing platforms for a given number of contacts and emails per month, optionally with SMS to one destination country. Computed from a fixed table of prices collected from each vendor's official pricing page; each row has the check date, the official source URL and a status (verified/unverified). Only verified prices are used for "cheapest". No feature requirements are applied. Use when the user asks how much an email/newsletter or SMS marketing tool costs for their list size, or wants to compare prices between Mailchimp, Klaviyo, Brevo, MailerLite, Kit (ConvertKit), beehiiv, Substack, Omnisend, GetResponse, ActiveCampaign and HubSpot Marketing Hub.

estimate_cost input schema

{
  "type": "object",
  "required": [
    "contacts",
    "emails_per_month"
  ],
  "properties": {
    "contacts": {
      "type": "integer",
      "maximum": 1000000,
      "minimum": 1,
      "description": "Number of contacts/subscribers."
    },
    "sms_country": {
      "enum": [
        "Afghanistan",
        "Aland Islands",
        "Albania",
        "Algeria",
        "American Samoa",
        "Andorra",
        "Anguilla",
        "Antigua And Barbuda",
        "Argentina",
        "Armenia",
        "Aruba",
        "Australia",
        "Austria",
        "Azerbaijan",
        "Bahamas",
        "Bahrain",
        "Barbados",
        "Belarus",
        "Belgium",
        "Belize",
        "Benin",
        "Bermuda",
        "Bhutan",
        "Bolivia",
        "Bonaire",
        "Bosnia and Herzegovina",
        "Botswana",
        "Brazil",
        "British Indian Ocean Territory",
        "British Virgin Islands",
        "Brunei Darussalam",
        "Bulgaria",
        "Burkina Faso",
        "Burundi",
        "Cambodia",
        "Cameroon",
        "Canada",
        "Cayman Islands",
        "Chad",
        "Chile",
        "China",
        "Christmas Island",
        "Cocos (Keeling) Islands",
        "Colombia",
        "Comoros",
        "Congo",
        "Congo Democratic Republic",
        "Cook Islands",
        "Costa Rica",
        "Cote d'Ivoire",
        "Croatia",
        "Cuba",
        "Curacao",
        "Cyprus",
        "Czech Republic",
        "Denmark",
        "Dominica",
        "Dominican Republic",
        "East Timor",
        "Ecuador",
        "Egypt",
        "El Salvador",
        "Estonia",
        "Falkland Islands (Malvinas)",
        "Faroe Islands",
        "Fiji",
        "Finland",
        "France",
        "French Guiana",
        "French Polynesia",
        "Gabon",
        "Gambia",
        "Georgia",
        "Germany",
        "Ghana",
        "Gibraltar",
        "Greece",
        "Greenland",
        "Grenada",
        "Guadeloupe",
        "Guam",
        "Guatemala",
        "Guernsey",
        "Guinea",
        "Guinea-Bissau",
        "Guyana",
        "Haiti",
        "Honduras",
        "Hong Kong",
        "Hungary",
        "Iceland",
        "India",
        "Indonesia",
        "Iraq",
        "Ireland",
        "Isle of Man",
        "Israel",
        "Italy",
        "Jamaica",
        "Japan",
        "Jersey",
        "Jordan",
        "Kazakhstan",
        "Kiribati",
        "Korea, Republic of",
        "Kosovo",
        "Kuwait",
        "Kyrgyzstan",
        "Lao People's Democratic Republic",
        "Latvia",
        "Lebanon",
        "Lesotho",
        "Liberia",
        "Libya",
        "Liechtenstein",
        "Lithuania",
        "Luxembourg",
        "Macau",
        "Macedonia, The Former Yugoslavian Republic of",
        "Madagascar",
        "Malawi",
        "Maldives",
        "Mali",
        "Malta",
        "Marshall Islands",
        "Martinique",
        "Mauritania",
        "Mauritius",
        "Mayotte",
        "Mexico",
        "Micronesia",
        "Moldova",
        "Monaco",
        "Montenegro",
        "Montserrat",
        "Morocco",
        "Mozambique",
        "Namibia",
        "Nauru",
        "Netherlands",
        "New Caledonia",
        "New Zealand",
        "Nicaragua",
        "Nigeria",
        "North Korea",
        "Northern Mariana Islands",
        "Norway",
        "Oman",
        "Pakistan",
        "Palau",
        "Palestinian Territory",
        "Panama",
        "Papua New Guinea",
        "Paraguay",
        "Peru",
        "Philippines",
        "Poland",
        "Portugal",
        "Puerto Rico",
        "Qatar",
        "Reunion",
        "Romania",
        "Rwanda",
        "Saint Barth?lemy",
        "Saint Lucia",
        "Saint Pierre and Miquelon",
        "Saint Vincent and the Grenadines",
        "Samoa",
        "San Marino",
        "Sao Tome and Principe",
        "Saudi Arabia",
        "Senegal",
        "Serbia",
        "Seychelles",
        "Sierra Leone",
        "Singapore",
        "Sint Maarten",
        "Slovakia",
        "Slovenia",
        "Solomon Islands",
        "Somalia",
        "South Africa",
        "South Sudan",
        "Spain",
        "Sri Lanka",
        "St. Kitts and Nevis",
        "Sudan",
        "Suriname",
        "Swaziland",
        "Sweden",
        "Switzerland",
        "Syrian Arab Republic",
        "Taiwan",
        "Tanzania",
        "Thailand",
        "Togo",
        "Tokelau",
        "Tonga",
        "Tunisia",
        "Turkey",
        "Turkmenistan",
        "Turks and Caicos Islands",
        "Tuvalu",
        "US Virgin Islands",
        "Uganda",
        "Ukraine",
        "United Arab Emirates",
        "United Kingdom",
        "United States of America",
        "Uruguay",
        "Vanuatu",
        "Venezuela",
        "Vietnam",
        "Wallis and Futuna Islands",
        "Western Sahara",
        "Yemen",
        "Zambia",
        "Zimbabwe"
      ],
      "type": "string",
      "description": "Optional. SMS destination country (exact name from the list)."
    },
    "sms_per_month": {
      "type": "integer",
      "maximum": 1000000,
      "minimum": 0,
      "description": "Optional. SMS messages per month (1 SMS = 1 segment). Requires sms_country when above 0."
    },
    "emails_per_month": {
      "type": "integer",
      "maximum": 50000000,
      "minimum": 0,
      "description": "Total emails sent per month (all contacts combined). At most 1000 per contact."
    }
  },
  "additionalProperties": false
}

estimate_cost annotations

{
  "title": "Estimate email & SMS marketing cost",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

list_vendors — List vendors and pricing sources

Advertised by the server during the last successful anonymous check.

Advertised read-only

Vendors covered by the estimate, with the date their pricing data was checked and the official pricing page URLs.

list_vendors input schema

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

list_vendors annotations

{
  "title": "List vendors and pricing sources",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 448 ms
95th percentile latency: 448 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 1, 2026, 7:31 AM UTC · probe · passed · 448 ms · metadata changed · 2 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http email-sms-marketing-cost-calculator-mcp https://email-sms-cost-mcp.money-tools.workers.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add email-sms-marketing-cost-calculator-mcp --url https://email-sms-cost-mcp.money-tools.workers.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable email-sms-marketing-cost-calculator-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "email-sms-marketing-cost-calculator-mcp": {
      "url": "https://email-sms-cost-mcp.money-tools.workers.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "email-sms-marketing-cost-calculator-mcp": {
      "type": "streamableHttp",
      "url": "https://email-sms-cost-mcp.money-tools.workers.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start email-sms-marketing-cost-calculator-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "email-sms-marketing-cost-calculator-mcp": {
      "type": "http",
      "url": "https://email-sms-cost-mcp.money-tools.workers.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http email-sms-marketing-cost-calculator-mcp https://email-sms-cost-mcp.money-tools.workers.dev/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "email-sms-marketing-cost-calculator-mcp": {
      "url": "https://email-sms-cost-mcp.money-tools.workers.dev/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "email-sms-marketing-cost-calculator-mcp": {
      "serverUrl": "https://email-sms-cost-mcp.money-tools.workers.dev/mcp"
    }
  }
}

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