ai.explorium/mcp-explorium vs Hollerdex: Website Contact Finder (Emails, Phones & Socials)
ai.explorium/mcp-explorium is an MCP server published by explorium.ai. Marketplaces we read that list it: 2 (Official MCP Registry, Docker MCP Catalog). 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). As of our marketplace pass on 2026-10-29. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |   ai.explorium/mcp-explorium |  Hollerdex: Website Contact Finder (Emails, Phones & Socials) |
|---|---|---|
| Official MCP Registry | Listed Version: 1.0.1 Forks (GitHub): 4 Stars (GitHub): 22 Not marked · First seen |
Listed Version: 1.0.0 No figure published Not marked · First seen |
| Docker MCP Catalog | Listed Version: sha256:48f0b580857b Forks (GitHub): 4 Pulls (Docker Hub): 13 208 Stars (Docker Hub): 0 Stars (GitHub): 22 Not marked · First seen |
Not listed |
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.
The facts side by side
| Fact | ai.explorium/mcp-explorium | Hollerdex: Website Contact Finder (Emails, Phones & Socials) |
|---|---|---|
| Marketplaces that list it (differs) | 2 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 22 | No figure on GitHub |
| Pulls (Docker Hub) (differs) | 13 208 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 4 | No figure on GitHub |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server or your machine | Remote server (mcp.apify.com) |
| Transport (differs) | Streamable HTTP, stdio | Streamable HTTP |
| Tools it declares (differs) | 12 | Not published |
| Environment variables it asks for (differs) | 1, secrets among them: 1 | Not published |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/explorium-ai/mcp-explorium | github.com/cybermax-tools/product-factory |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Not responding since 2026-10-23 | Not responding since 2026-10-24 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
ai.explorium/mcp-explorium
Access live company and contact data from Explorium's AgentSource B2B platform.
Hollerdex: Website Contact Finder (Emails, Phones & Socials)
Hollerdex: a domain's public emails, phones and social profiles as one ranked contact card.
How to run each
ai.explorium/mcp-explorium As a remote MCP server
claude mcp add --transport http mcp-explorium https://mcp-github-registry.explorium.ai/mcpHollerdex: Website Contact Finder (Emails, Phones & Socials)
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Requires: Authorization header
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Neither endpoint responded at the last daily check. How we check endpoints
Tools each declares
The marketplaces of Hollerdex: Website Contact Finder (Emails, Phones & Socials) publish no list of tools, so we do not compare tools.
Settings each asks for
The marketplaces of Hollerdex: Website Contact Finder (Emails, Phones & Socials) publish no settings it asks for, so we do not compare settings.
What it can do: ai.explorium/mcp-explorium · What it can do: Hollerdex: Website Contact Finder (Emails, Phones & Socials) · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.