How do I install Byteplant?

Copy the stdio config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does Byteplant need an API key?

The publisher lists these environment variables: EV_TOKEN, AV_TOKEN, PV_TOKEN.

What transport does Byteplant use?

Byteplant runs locally over stdio.

When was Byteplant last checked?

Last checked 2026-11-09. An MCP server that provides Email, Phone and Address Validation Services from Byteplant

Byteplant MCP server

Power your agent

Add this server

The publisher's own command. Not a PlugMCP endpoint.

Add to Cursor Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Local command

uvx byteplant-mcp==1.1.0

Credentials from the publisher

EV_TOKEN — Email Validator API Token
AV_TOKEN — Address Validator API Token
PV_TOKEN — Phone Validator API Token

Claude Code has no install link for a local command. Copy the command below and run it in a terminal.

shClaude Code

1EV_TOKEN=<secret> AV_TOKEN=<secret> PV_TOKEN=<secret> claude mcp add io.github.byteplant-devops-byteplant-mcp -- uvx byteplant-mcp==1.1.0

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "io.github.byteplant-devops-byteplant-mcp": {4      "command": "uvx",5      "args": [6        "byteplant-mcp==1.1.0"7      ],8      "env": {9        "EV_TOKEN": "<secret>",10        "AV_TOKEN": "<secret>",11        "PV_TOKEN": "<secret>"12      }13    }14  }15}

claude_desktop_config.json

Local · pypiPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Local

Transport: stdio
Version: 1.1.1

Tools

No tool list yet. Remote servers get one after the first health check.

FAQ

Questions

This is an MCP server that connects AI assistants such as Claude, Cursor and VS Code to the Byteplant validation APIs. Ask your assistant to check an email address, phone number or postal address, and it calls the matching Byteplant tool and reads back the result.

The server runs locally on your computer and talks to your MCP client over stdio.

Installation

The easiest way to run the server is with uv. uvx downloads the package and a suitable Python version automatically, so there is nothing else to install.

Add the server to your MCP client with one of the configurations below, and replace the placeholders with your API keys. You only need the keys for the services you use.

Claude Desktop

In Claude Desktop, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json:
- macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
- Windows: %APPDATA%\Claude\claude_desktop_config.json

Add the Byteplant server:

{
  "mcpServers": {
    "byteplant": {
      "command": "uvx",
      "args": ["byteplant-mcp@latest"],
      "env": {
        "EV_TOKEN": "<EMAIL VALIDATOR API KEY>",
        "PV_TOKEN": "<PHONE VALIDATOR API KEY>",
        "AV_TOKEN": "<ADDRESS VALIDATOR API KEY>"
      }
    }
  }
}

Restart Claude Desktop.

Claude Code

claude mcp add \
  --env EV_TOKEN=<EMAIL VALIDATOR API KEY> \
  --env PV_TOKEN=<PHONE VALIDATOR API KEY> \
  --env AV_TOKEN=<ADDRESS VALIDATOR API KEY> \
  --transport stdio byteplant -- uvx byteplant-mcp@latest

Cursor

Add the same mcpServers entry as for Claude Desktop to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (one project).

VS Code

Add the server to .vscode/mcp.json in your project:

{
  "servers": {
    "byteplant": {
      "type": "stdio",
      "command": "uvx",
      "args": ["byteplant-mcp@latest"],
      "env": {
        "EV_TOKEN": "<EMAIL VALIDATOR API KEY>",
        "PV_TOKEN": "<PHONE VALIDATOR API KEY>",
        "AV_TOKEN": "<ADDRESS VALIDATOR API KEY>"
      }
    }
  }
}

Using pip instead of uv

pip install byteplant-mcp

This installs a byteplant-mcp command. Use its full path as the command, because desktop apps often don't see your shell's PATH (find it with which byteplant-mcp on macOS/Linux or where byteplant-mcp on Windows):

"command": "/full/path/to/byteplant-mcp"

Alternatively, run the module with the Python installation you installed it into:

"command": "/path/to/python",
"args": ["-m", "byteplant_mcp"]

Tools

Tool	What it does
`validate_email`	Checks whether an email address is deliverable and detects freemail providers
`validate_phone`	Validates a phone number and returns its line type, carrier codes, location and formats
`validate_address`	Validates and standardizes a postal address, with optional geocoding

Credentials

Each tool uses its own API key, passed to the server as an environment variable. Sign up for the service you need to get one:

Environment variable	Used by	Get an API key
`EV_TOKEN`	`validate_email`	Email Validator
`PV_TOKEN`	`validate_phone`	Phone Validator
`AV_TOKEN`	`validate_address`	Address Validator

You can manage your keys in your Byteplant account. If a key is missing, the matching tool tells the assistant which variable to set instead of calling the API.

Usage

Just ask your assistant in plain language, for example:

"Is [email protected] a valid email address?"
"Check whether +49 9874 322466 is a mobile or a landline number."
"Validate this address and give me the standardized version: Heilsbronner Str. 4, 91564 Neuendettelsau, Germany."

The assistant fills in the tool parameters below. Every tool also has a timeout parameter, which sets how long the API may take to respond: 5–300 seconds, 10 by default.

`validate_email` - API Docs

Parameter	Required	Description
`email`	✅	The email address to validate

Output

Field	Description
`status`	Numeric result code, e.g. `200` for a valid address. See the full list of result codes.
`category`	Added by the server: `VALID`, `SUSPECT`, `INVALID` or `INDETERMINATE`, based on `status` (`UNKNOWN` for unlisted codes)
`status_description`	Added by the server: what the `status` code means
`info`	Short status description
`details`	Full status description
`freemail`	`true` if the address belongs to a freemail provider (Gmail, Yahoo, Outlook/Hotmail/Live, AOL, …)

`validate_phone` - API Docs

Parameter	Required	Description
`phone`	✅	The phone number to validate, in national format or in international format with a leading `+`
`code`		Two-letter ISO 3166-1 country code. Optional if the phone number is in international format.
`locale`		IETF language tag for geocoding results. Defaults to `en-US`.
`mode`		`extensive` (default) runs full validation. `express` runs static checks only and is faster.

Output

Field	Description
`status`	`VALID_CONFIRMED`, `VALID_UNCONFIRMED`, `INVALID`, `DELAYED`, `RATE_LIMIT_EXCEEDED` or `API_KEY_INVALID_OR_DEPLETED`
`linetype`	`FIXED_LINE`, `MOBILE`, `VOIP`, `TOLL_FREE`, `PREMIUM_RATE`, `SHARED_COST`, `PERSONAL_NUMBER`, `PAGER`, `UAN` or `VOICEMAIL`
`location`	Geographical location (city, county, state)
`countrycode`	Two-letter ISO 3166-1 country code
`formatnational`	Phone number in national format
`formatinternational`	Phone number in international format
`mcc`	Mobile country code, which identifies the mobile network operator (carrier)
`mnc`	Mobile network code, which identifies the mobile network operator (carrier)

`validate_address` - API Docs

Parameter	Required	Description
`code`	✅	Two-letter ISO 3166-1 country code. Use `XX` for international addresses.
`street_adr`	✅	Street, house number and building. May include the unit or apartment, or even the complete address.
`street_num`		House or building number, if it isn't part of `street_adr`
`additional_info`		Building, unit, apartment or floor
`city`		City or locality
`postal_code`		ZIP or postal code
`state`		State or province
`geocoding`		Whether to return coordinates for the address. Off by default.
`locale`		Output language for countries with more than one postal language. Use it only to translate addresses, and leave it empty for address validation.
`charset`		`utf-8` (default) or `us-ascii`

Output

Field	Description
`status`	`VALID`: the address is correct and deliverable. `SUSPECT`: the address needs corrections to be deliverable, and a suggested correction is provided. `INVALID`: the address is not deliverable and can't be corrected automatically. Other values: `DELAYED`, `NO_COUNTRY`, `RATE_LIMIT_EXCEEDED`, `API_KEY_INVALID_OR_DEPLETED`, `RESTRICTED`, `INTERNAL_ERROR`
`formattedaddress`	Full address in standardized format
`supplement`	Additional address details (building, unit, apartment, suite)
`street`	Street in standardized format
`streetnumber`	Street number in standardized format
`postalcode`	ZIP or postal code in standardized format
`city`	City in standardized format
`district`	District in standardized format
`county`	County in standardized format
`state`	State or province in standardized format
`country`	Two-letter ISO 3166-1 country code
`type`	Address type: `S` for a street address, `P` for a P.O. box, pick-up or other delivery service
`rdi`	Residential Delivery Indicator: commercial or residential
`diagnostics`	Hints about errors in the address input. See the full list of diagnostic hints.
`corrections`	Hints about which parts of the address input were fixed. See the full list of correction hints.
`latitude`,

Compatibility

Requirement	Version
Python	3.10 or later (installed automatically by `uvx`)
MCP client	Any client that runs local stdio servers, e.g. Claude Desktop, Claude Code, Cursor, VS Code, Windsurf or OpenAI Codex

ChatGPT and Claude on the web or mobile only connect to remote (hosted) MCP servers, so they can't use this server yet.

Resources

License

MIT

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install Byteplant?

Does Byteplant need an API key?

What transport does Byteplant use?

When was Byteplant last checked?

Documentation

Installation

Claude Desktop

Claude Code

Cursor

VS Code

Using pip instead of uv

Tools

Credentials

Usage

validate_email - API Docs

Output

validate_phone - API Docs

Output

validate_address - API Docs

Output

Compatibility

Resources

License

`validate_email` - API Docs

`validate_phone` - API Docs

`validate_address` - API Docs