Mcp Company Discovery List Builder

com.mambabuiltPublished by mambabuilt.comv1.2.1Updated Nov 7, 2026

Build a company list from live hiring data or from US SEC filings mentioning a phrase.

VerifiedSTDIODesktop onlyWeb Search & ScrapingBusiness & Commerce

Overview

AI-generated overview

Builds company prospect lists from live Greenhouse and Ashby hiring data or from US SEC filings, via an Apify actor.

What you can do
  • Build a company list from a market definition in one of two modes
  • Find companies currently hiring for given role keywords, optionally filtered by location and minimum open roles
  • Find US SEC filers whose filings contain an exact phrase, optionally limited to form types
  • Resolve company websites with domain status and confidence, and cap the number of companies returned
When to use it
Useful for sales, recruiting or market research when you want a shortlist of companies hiring for particular roles or SEC filers discussing a given phrase, without manually searching job boards or filings.
Requirements
Runs locally via npx (Node.js) as a stdio process, desktop only. Requires an Apify account and an APIFY_TOKEN environment variable. Network access to Apify and the underlying job board and SEC data is needed.
Before you install
Runs consume Apify credits: a start fee plus a per-company charge, so max_companies and max_charge_usd act as cost caps. The APIFY_TOKEN is a secret passed in the environment. Results come from a third-party Apify actor that receives your input unchanged; domain lookups are approximate and should be checked via domain_status and domain_confidence.

Installation

In SourceWeft

  1. Open Mcp Company Discovery List Builder in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

Company Discovery List Builder MCP Server

[Glama score] [MCP Registry] [npm version] [npm downloads] [license] [mcpservers.org]

[Company Discovery List Builder MCP server]

MCP server for the Mamba Labs Company Discovery List Builder actor on Apify.

Market in, companies out. Give it role keywords and a location and it returns the companies currently hiring for that. A second mode returns US SEC filers whose filings contain your phrase. No paid data source is involved.

Install

bash
npx -y @mambalabsdev/mcp-company-discovery-list-builder

Claude Desktop

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

Get an Apify token at console.apify.com/account/integrations.

Tool

build_company_list

Market in, companies out. Give it role keywords and a location and it returns the companies currently hiring for that. A second mode returns US SEC filers whose filings contain your phrase. No paid data source is involved.

InputTypeRequiredNotes
modeenumyeshiring returns companies currently hiring for your role keywords, built from a live index of public Greenhouse and Ashby job boards. filings returns US SEC filers whose filings contain your phrase. One of: hiring, filings.
role_keywordsstringnoComma separated. Matched as whole words against live job titles, so account executive matches Enterprise Account Executive and does not match Executive Assistant. Leave empty to match any role. Used in hiring mode.
filing_phrasestringnoExact phrase searched in SEC filings, for example agentic AI. Used in filings mode.
filing_formsstringnoComma separated SEC form types, for example 10-K,10-Q. Used in filings mode. Default: "10-K".
location_containsstringnoSubstring match against the job location string, for example London, Remote, New York. Locations are free text on every job board, so this is a plain substring test: Remote does not match US Remote.
min_open_jobsstringnoSkip companies with fewer open roles than this. A rough size proxy. Sent as a string so it works from Clay. Default: "1".
max_companiesstringnoHow many companies to return, 1 to 2000. Sent as a string so it works from Clay. You are billed per company returned, not per company examined. Default: "100".
resolve_domainsbooleannoLook up each company's website. On by default: it adds roughly a second per company and about two thirds of companies resolve. Set false for a faster list without domains. Check domain_status and domain_confidence before trusting a result. Default: true.
refresh_universebooleannoForce a fresh Common Crawl enumeration instead of the cached one. The cached universe is rebuilt about monthly on its own, so leave this off unless you need the newest crawl. Default: false.
max_charge_usdnumbernoOptional cost cap in USD for this run. The actor stops before an item that could take its charges past this amount. Omit to rely on the maximum cost per run set in Apify.

Billing

You are charged per company returned, not per company examined, plus a small actor start fee. max_companies is therefore a hard cost cap.

Price per event on the Apify FREE plan, from the live pricing record; paid Apify plans pay less per event.

EventPrice (USD)
Actor Start (apify-actor-start)0.00005
Company found (company-found)0.004

Pricing is on the actor's Apify page. Running this server consumes Apify credits.

What this server does and does not do

It is a thin client for the Apify actor. It passes your input through and returns the actor's output unchanged. Every behavior described above lives in the actor, not here.

Errors are surfaced, never swallowed. An invalid input, an invalid token, an exhausted balance, a timeout, or a run that returns anything other than a dataset all come back as an explicit tool error rather than as an empty result.

The tool starts the actor run and polls it to a finished status, so a long run is not cut off at 300 seconds. The run is allowed 1,800 seconds. If it is still going two minutes after that, the call stops waiting and returns the run ID with a link to it in the Apify Console, where the results land when it finishes. A run that does not succeed comes back as an error with its run ID and status.

Source

The actor is on the Apify Store. This wrapper is MIT licensed.

Built by Mamba Labs

Source: README.md at commit 3713d70

Tools

1

build_company_list

Build Company List

Build a list of companies from a market definition, in two modes. hiring returns companies currently advertising for your role keywords, built from a live index of public Greenhouse and Ashby job boards; role_keywords are matched as whole words against live job titles, so account executive matches Enterprise Account Executive and does not match Executive Assistant. filings returns US public companies whose SEC filings of the form types you name contain your exact phrase. location_contains is a plain substring test against the job board's own free text location string, so Remote does not match US Remote. min_open_jobs is a rough size proxy. resolve_domains looks up each company's website, which adds roughly a second per company and resolves about two thirds of the time, so check domain_status and domain_confidence before trusting a domain. The underlying company universe is rebuilt about monthly on its own; refresh_universe forces a fresh enumeration and is rarely what you want. You are billed per company returned, not per company examined, so max_companies is the cost dial. Requires an APIFY_TOKEN and consumes Apify credits. Reads public data only and writes nothing.

Parametersmoderequiredfiling_formsfiling_phrasemax_companiesmin_open_jobsrole_keywordsmax_charge_usdresolve_domainsrefresh_universelocation_contains

Version history

5
  1. v1.2.1LatestNov 5, 2026
  2. v1.2.0Oct 16, 2026
  3. v1.1.1Oct 6, 2026
  4. v1.1.0Oct 6, 2026
  5. v1.0.1Sep 16, 2026

Score

90% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts
  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts