mcp-launch-directory-list-builder

Launch Directory List Builder MCP Server

An MCP server for the Mamba Labs Launch Directory List Builder actor on Apify. Describe what you are launching and get a ranked list of places to submit it, each checked live today.

What's Inside

• What it does
• Quick start
• Prerequisites
• Example prompts
• Tool
• Inputs
• Pricing
• Full actor documentation
• License

What it does

The places (directories, launch sites, newsletters, communities, subreddits, marketplaces, press and review pages, and curated GitHub lists) come from the public domain awesome-submitlist catalog, read fresh on every run. Each row carries the submission link, price, link type, audience, rules, and a fit score against your description. The actor checks each submission page live, with robots.txt obeyed: up, moved to another site, parked, gone, login first, submit form found, prices shown, and the newest date on the page. A Tranco popularity rank is added per site. One free summary row closes each run.

All of the work runs on Apify. This package is a thin client that starts the actor run, waits for it, and hands back the dataset rows.

Quick start

You need Node.js 18 or newer and an Apify account with an API token.

Add this to your Claude Desktop config (claude_desktop_config.json), Cursor, or any MCP client:

{
  "mcpServers": {
    "mamba-launch-directory-list-builder": {
      "command": "npx",
      "args": ["-y", "@mambalabsdev/mcp-launch-directory-list-builder"],
      "env": {
        "APIFY_TOKEN": "your-apify-token"
      }
    }
  }
}

Restart the client. The build_launch_directory_list tool appears.

Prerequisites

• Node.js 18 or newer.
• An Apify API token from console.apify.com/account/integrations, set as APIFY_TOKEN. The server lists its tool without a token; a call needs one.

Example prompts

• "Where should I launch my AI meeting notes tool for sales teams? Give me the 25 best fits."
• "List free directories that give a dofollow link, and check which ones are still up."
• "Which launch sites have a submit form and showed activity this month?"

Tool

build_launch_directory_list. One tool. Example arguments:

{
  "product_description": "AI meeting notes tool for B2B sales teams",
  "categories": [
    "saas",
    "ai"
  ],
  "max_rows": 25
}

Inputs

Every buyer facing input of the actor. Omitted inputs take the actor's own defaults.

Input	Type	Required	Description
product_description	string	no	What you are launching and who it is for.
categories	array	no	ai, analytics, business, community, design, developer-tools, ecommerce, indie, marketing, productivity, saas, social, software, startup.
keywords	array	no	Extra words to score places by.
types	array	no	directory, product-launch-site, newsletter, community, subreddit, marketplace, citation, github. Default all but github.
free_only	boolean	no	Places marked free only. Default false.
dofollow_only	boolean	no	Places marked dofollow only. Default false.
min_fit_score	integer	no	Minimum fit score, 0 to 100. Default 0.
check_live	boolean	no	Check each page today. Default true.
include_rank	boolean	no	Add the Tranco rank. Default true.
max_rows	integer	no	Place rows per run. Default 100.
only_new	boolean	no	Skip places an earlier run returned. Default false.
state_key	string	no	Name for the only new places memory.
max_charge_usd	string	no	Optional cost cap for the run.
proxy_mode	string	no	auto or direct. Default auto.

Pricing

Pay per event on Apify, billed to your Apify account. Prices in USD.

Event	Free plan	Bronze	Silver	Gold
destination-row, per place delivered	$0.005	$0.00475	$0.0045	$0.00425
apify-actor-start, per run start	$0.0015	$0.0015	$0.0015	$0.0015

The run summary row, input refusal rows, places whose page the live check could not read, and places skipped with only_new are free. Mamba Labs pays the platform costs of the run, Apify proxy traffic included.

Full actor documentation

apify.com/mambalabs/launch-directory-list-builder

License

MIT. See LICENSE.