ai.explorium/mcp-explorium vs Sendsets
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). Sendsets is an MCP server published by AddisonHoff. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-23. 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 |  Sendsets |
|---|---|---|
| Official MCP Registry | Listed Version: 1.0.1 Forks (GitHub): 4 Stars (GitHub): 22 Not marked · First seen |
Listed Version: 1.0.0 Forks (GitHub): 0 Stars (GitHub): 3 Not marked · First seen |
| Docker MCP Catalog | Listed Version: sha256:48f0b580857b Forks (GitHub): 4 Pulls (Docker Hub): 13 014 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 | Sendsets |
|---|---|---|
| Marketplaces that list it (differs) | 2 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 22 (better) | 3 (worse) |
| Pulls (Docker Hub) (differs) | 13 014 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 4 (better) | 0 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server or your machine | Remote server (api.sendsetsapi.com/v1/mcp) |
| 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 | Apache-2.0 |
| Repository (differs) | github.com/explorium-ai/mcp-explorium | github.com/addisonhoff/sendsets |
| Changes in the last 7 days (differs) | 0 | 6 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 6 days ago, requires a key | Responded 17 h ago, requires a key |
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.
Sendsets
Cold email API for AI agents: connect mailboxes, warm up, run campaigns and handle replies.
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/mcpSendsets As a remote MCP server
claude mcp add --transport http sendsets https://api.sendsetsapi.com/v1/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Both endpoints responded at the last daily check. How we check endpoints
Tools each declares
The marketplaces of Sendsets publish no list of tools, so we do not compare tools.
Settings each asks for
The marketplaces of Sendsets publish no settings it asks for, so we do not compare settings.
What it can do: ai.explorium/mcp-explorium · What it can do: Sendsets · 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. Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.