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B2b Prospect Engine MCP Server

Developer ToolsUse Caution4.2MCP RegistryLocal
Free

Server data from the Official MCP Registry

Enrich companies, discover hiring signals and find verified contacts in one actor.

About

Enrich companies, discover hiring signals and find verified contacts in one actor.

Security Report

4.2
Use Caution4.2High Risk

This MCP server is a thin wrapper around the Apify Prospect Engine actor with appropriate authentication controls and reasonable input validation. The server correctly requires APIFY_TOKEN for operation, validates all inputs via Zod schema, and properly handles API errors without logging sensitive credentials. Permissions align well with its purpose as a prospecting tool. Minor findings include optional vendor API keys being passed through without additional validation and broad error catching that could mask some issues, but these are not security concerns. Supply chain analysis found 3 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.

3 files analyzed · 7 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

env_vars

Check that this permission is expected for this type of plugin.

HTTP Network Access

Connects to external APIs or services over the internet.

What You'll Need

Set these up before or after installing:

Apify API token from https://console.apify.com/account/integrationsRequired

Environment variable: APIFY_TOKEN

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "com-mambabuilt-mcp-b2b-prospect-engine": {
      "env": {
        "APIFY_TOKEN": "your-apify-token-here"
      },
      "args": [
        "-y",
        "@mambalabsdev/mcp-b2b-prospect-engine"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

Prospect Engine MCP Server

Smithery Glama score MCP Registry npm version npm downloads license mcpservers.org

MCP server for the Mamba Labs Prospect Engine actor on Apify.

Four modes in one actor: enrich companies you already have, discover who is hiring for your keywords, find contacts at a company, or run the whole chain end to end with an ICP gate in the middle.

Install

npx -y @mambalabsdev/mcp-b2b-prospect-engine

Claude Desktop

{
  "mcpServers": {
    "mamba-b2b-prospect-engine": {
      "command": "npx",
      "args": ["-y", "@mambalabsdev/mcp-b2b-prospect-engine"],
      "env": { "APIFY_TOKEN": "your-apify-token" }
    }
  }
}

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

Tool

run_prospect_engine

Four modes in one actor: enrich companies you already have, discover who is hiring for your keywords, find contacts at a company, or run the whole chain end to end with an ICP gate in the middle.

InputTypeRequiredNotes
modeenumnoWhat to run. enrich_companies resolves identity, firmographics, LinkedIn and social for each company. discover_jobs finds who is hiring for your keywords and resolves the real employer from the job description. find_contacts finds people at each company. full chains all three.
domainsarraynoOne domain per line. Used by enrich_companies and find_contacts.
company_namesarraynoOne name per line. Used when you have a name but no domain.
keywordsarraynoRoles to search for. Used by discover_jobs and full. Example: copy editor, proofreader, content editor.
countrystringnoTwo letter country code for job search, for example us or gb.
locationstringnoOptional location filter for job search, for example New York.
lookback_daysstringnoDrop postings older than this many days. Sent as a string because Clay sends every field as a string.
max_resultsstringnoCap on postings returned per run. Keeps a broad keyword set from running away.
max_pagesstringno1 to 5. Each page is one SerpAPI call, so this is the main cost dial on discovery.
new_postings_onlystringnotrue to return only postings not seen in a previous run.
previous_run_datestringnoYYYY-MM-DD watermark for delta detection when the cross-run cache is unavailable.
remote_onlystringnotrue to keep only postings flagged remote by the board.
company_size_minstringnoDrop companies below this headcount. Only takes effect once headcount is known, so it applies in full mode and to any discovery row that carried an employee count. Discovery alone does not enrich.
company_size_maxstringnoDrop companies above this headcount. Same condition as the minimum.
exclude_staffingstringnotrue to drop postings from staffing and recruitment agencies.
exclude_marketplacesstringnotrue to drop Upwork, Fiverr, Freelancer and similar gig listings.
extra_marketplacesarraynoAdditional marketplace names to filter out.
fetch_posting_pagestringnotrue to open the job posting when the description alone does not identify the employer. Slower, and it is what catches a job board posting on an employer's behalf.
target_contactsstringno1 to 25.
job_titlesarraynoTitles to search for when finding contacts.
seniorityarraynoc_level, vp, director, manager, senior.
departmentsarraynomarketing, sales, engineering, product, finance, hr, operations, legal.
include_emailstringnotrue to run the email waterfall. Needs an Icypeas or Prospeo key, which you supply and are billed for directly.
verify_emailstringnotrue to verify each address. Needs a Reoon or BounceBan key.
score_icpstringnotrue to score every row against the ICP rules and tier it A to D.
icp_presetenumnoWhich scoring model to apply. "proofed_editorial" scores for a seller of managed copy editing and proofreading. "generic_b2b" scores on hiring intent, employer resolvability and headcount with no service-specific vocabulary.
min_icp_scorestringnoIn full mode, only companies scoring at or above this go on to contact discovery. Default 45: at 25 the filter passed every keyword-discovered editorial posting, because 25 is the floor such a posting can score.
extra_exclude_namesarraynoAny company whose name contains one of these is excluded.
signal_taxonomyarraynoOverride the default signal types. Each entry is an object with type, strength, title_keywords, and optional also_keywords and description_keywords.
include_socialstringnotrue to resolve Facebook, Instagram, X and YouTube alongside LinkedIn.
source_timeout_secsstringno5 to 120. A source that exceeds this is marked degraded and the run continues.
skip_cachestringnotrue to ignore the 7 day cross-run cache and recompute everything.
serper_api_keystringnoYour Serper.dev key. Powers people search in find_contacts, which is the highest-coverage layer. Without it the free fallback is measurably poor.
findymail_api_keystringnoYour Findymail key. First provider in the email waterfall.
icypeas_api_keystringnoYour Icypeas key. Runs on Findymail misses.
prospeo_api_keystringnoYour Prospeo key. Runs on the residual after Findymail and Icypeas.
reoon_api_keystringnoYour Reoon key. First email verification provider.
bounceban_api_keystringnoYour BounceBan key. Second verifier, used for the catch-all case.
serpapi_keystringnoYour SerpApi key. Required by discover_jobs and full. Distinct from a Serper key: different vendor.

Billing

You are charged per company enriched, per contact verified and per job posting discovered, at different rates for basic and full enrichment. Vendor API calls are billed to you by those vendors directly.

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.

Source

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

Built by Mamba Labs

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