Hollerdex: Website Contact Finder (Emails, Phones & Socials)
Hollerdex: a domain's public emails, phones and social profiles as one ranked contact card.
MCP server · by CyberMax-tools
About
Hollerdex: Website Contact Finder (Emails, Phones & Socials) is an MCP server published by CyberMax-tools. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-12.
What it asks for
- Runs remotely
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Connect
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 1.0.0 | No figure published | Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
Nothing has moved on this plugin since we started watching it.
Possibly the same plugin
Listings that share a signal with this one but not enough for us to treat them as the same product.
- Bonafido: Business Domain Verification API
- Capturewren: Website Screenshot API for AI Agents (Image + Text)
- Commonkite: Free Image Search API, Creative Commons & CC0
- CyberMax Data
- DomainDNA: Tech Stack Detector, WHOIS & Domain Age API
- Feedpeck: RSS Feed Finder & Reader by Website
- Fieldwright
- Firmfold: Company Enrichment API
- HireHeat Jobs: Career Site Job Listings from 12,000+ Companies
- HireHeat: Hiring Signals & Company Job Postings by Domain
Forks and copies
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
Hollerdex: Website Contact Finder (Emails, Phones & Socials)
Hollerdex: a domain's public emails, phones and social profiles as one ranked contact card.
-
Hollerdex: Website Contact Finder (Emails, Phones & Socials)
Hollerdex: a domain's public emails, phones and social profiles as one ranked contact card.
-
enrow-mcp io.enrow/enrow-mcp
Find and verify professional emails and phone numbers via the Enrow API.
-
leadharbor-mcp io.github.samaanmohammed-art/leadharbor-mcp
Email verify (MX), website contacts, LinkedIn jobs, YouTube data via RapidAPI. Bring your own key.
-
Find verified B2B emails, phone numbers and the decision makers of any company.
-
Check how to contact a business website, and whether that contact path actually works.
-
TargetWise — B2B Prospecting & Enrichment
Find companies and B2B contacts, enrich profiles, and look up work emails and business phones.
-
Find verified B2B emails and phone numbers; search and enrich people and companies for prospecting.
-
mcp-company-contact-details-extractor com.mambabuilt/mcp-company-contact-details-extractor
Find a company contact page and extract role emails, a phone number and a postal address.
-
prospeo-mcp-server io.prospeo/prospeo-mcp-server
Prospeo: Find, search, and enrich people and companies with verified emails and mobile numbers.
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
Search contacts and companies, enrich accounts, unlock contact details, and push records to CRM — one-click Lead411 MCP integration for Claude Code and Cowork.
-
Give Claude access to billions of company and person profiles, work emails, contacts, school and job data via the Enrich Layer API. Turns Claude into a recruiter, an SDR, an…
-
Prospect, enrich leads, and bulk-load outreach sequences with Apollo.io. Includes 3 powerful skills: enrich-lead, prospect, and sequence-load for complete sales automation.
-
Saleshandy prospecting and enrichment for Claude Code — natural-language ICP search and one-shot lead enrichment, wired through the Saleshandy MCP server.
-
Prospect, enrich leads, load outreach sequences, and query sales analytics with Apollo.io — one-click MCP server integration for Claude Code and Cowork.
Has a listing on Claude Code: claude-plugins-official (5)
-
Prospect, enrich, and build call-ready lead lists using Lusha's B2B intelligence platform — verified phone numbers, company signals, and lookalike targeting.
-
Find and verify professional email addresses, search contacts by domain, and enrich company data -- directly in Claude.
-
Prospect, enrich leads, load outreach sequences, and query sales analytics with Apollo.io — one-click MCP server integration for Claude Code and Cowork.
-
Search companies and contacts, enrich leads, find lookalikes, and get AI-ranked contact recommendations. Pre-built skills chain multiple ZoomInfo tools into complete B2B sales…
-
Nimble web data toolkit — search, extract, map, crawl the web and work with structured data agents
Has a listing on Claude: knowledge-work-plugins (5)
-
Prospect, enrich, and build call-ready lead lists using Lusha's B2B intelligence platform — verified phone numbers, company signals, and lookalike targeting.
-
Deal-work workflows powered by Grasp company lookup, table creation, import, buyer, transaction, table enrichment, contact, and market research tools.
-
Search companies and contacts, enrich leads, find lookalikes, and get AI-ranked contact recommendations. Pre-built skills chain multiple ZoomInfo tools into complete B2B sales…
-
Prospect, enrich leads, and load outreach sequences with Apollo.io — one-click MCP server integration for Claude Code and Cowork.
-
Nimble web data toolkit — search, extract, map, crawl the web and work with structured data agents
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Work with Outlook Email using the configured Microsoft Outlook app connector.
-
Work with Gmail using the configured Gmail app connector.
-
Twilio Skills provide procedural knowledge for AI coding agents — which APIs to use, in what order, and what to avoid. Covers Messaging, Voice, Verify, SendGrid, and 30+ products.
-
Bring operational data and context into the flow of your ChatGPT conversations. You can ask questions, create and update records, and analyze your data—all through conversation…
-
Connect Microsoft Outlook Calendar for scheduling, daily briefs, event prep, and safe meeting changes.
Has a listing on Community GitHub marketplaces (5)
-
Enrich B2B people & companies with cited multi-source data (verified work emails, LinkedIn, firmographics, AI research), search/source people at target accounts, and write results…
-
Prospect, enrich leads, load outreach sequences, and query sales analytics with Apollo.io — one-click MCP server integration for Claude Code and Cowork.
-
FastMCP server for Apollo.io — 22 tools: sequences, campaign health, mailbox warmup, enrichment,…
-
Manage the Carta CRM conversationally — search, add, update, and enrich investors, companies, contacts, deals, notes, and fundraisings via the Carta CRM MCP Server.
-
Cold email API for AI agents: connect mailboxes, warm up, run campaigns and handle replies.
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Helps devs extract data from any website with thousands of trusted scrapers, crawlers, and automations from Apify Store. Integrate ready-made Actors to access all popular social…
-
Query Anarlog meetings locally, or connect through OAuth to read opted-in Cloud snapshots.
-
Three-layer verification pipeline for AI output. Extracts claims, finds sources, and flags hallucination risks so humans can verify before acting.
-
Comprehensive collection for building declarative agents with Model Context Protocol integration for Microsoft 365 Copilot
-
Self-configuring status briefing generator. Learns your communication style from examples, discovers your data sources, and produces draft updates for any audience on demand.
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
workiq
Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.
-
workiq-productivity
WorkIQ productivity skills powered by the local WorkIQ CLI — read-only insights across email, meetings, calendar, Teams, SharePoint, projects, and people.
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
Build Power Apps Canvas Apps using the Canvas Authoring MCP server.
-
model-apps
Build and deploy Power Apps generative pages for model-driven apps with specialist agents for planning, entity creation, and parallel code generation. Requires PAC CLI >= 2.7.0…
Has a listing on Cursor: cursor/plugins (5)
Has a listing on Docker MCP Catalog (5)
-
mcp-explorium ai.explorium/mcp-explorium
Access live company and contact data from Explorium's AgentSource B2B platform.
-
Streamline sales processes with integrated calling, email, SMS, and automated workflows for small and scaling businesses.
-
Unite marketing, sales, and customer service with AI-powered automation, lead management, and comprehensive analytics.
-
Enables interaction with powerful telephony, messaging, and AI assistant APIs.
-
Exa AI web search, deep research, and content extraction. Provides MCP tools and research skills for comprehensive web search, people discovery, company research, academic papers…
Has a listing on Official MCP Registry (5)
-
Hollerdex: Website Contact Finder (Emails, Phones & Socials)
Hollerdex: a domain's public emails, phones and social profiles as one ranked contact card.
-
Hollerdex: Website Contact Finder (Emails, Phones & Socials)
Hollerdex: a domain's public emails, phones and social profiles as one ranked contact card.
-
enrow-mcp io.enrow/enrow-mcp
Find and verify professional emails and phone numbers via the Enrow API.
-
leadharbor-mcp io.github.samaanmohammed-art/leadharbor-mcp
Email verify (MX), website contacts, LinkedIn jobs, YouTube data via RapidAPI. Bring your own key.
-
Find verified B2B emails, phone numbers and the decision makers of any company.
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Is this your plugin?
Add it to your projects and prove you maintain it with a file in its repository, a file on your domain or a DNS record. You get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.