MarcoPolo vs PolarJay
MarcoPolo is a plugin bundle for AI coding tools published by immersa-co. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). PolarJay is an MCP server published by polarjay.com. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-21. 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 |  MarcoPolo |  PolarJay |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 3.3.1 Forks (GitHub): 2 Stars (GitHub): 1 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 1.0.0 No figure published Not marked · First seen |
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 | MarcoPolo | PolarJay |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 1 | No figure on GitHub |
| Forks (GitHub) (differs) | 2 | No figure on GitHub |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server (mcp.marcopolo.dev) | Remote server (polarjay.com/api/mcp) |
| Transport | Streamable HTTP | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 6 | Not a bundle |
| Licence (differs) | Apache-2.0 | Not stated |
| Repository (differs) | github.com/immersa-co/marcopolo-plugin | Not stated |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 5 days ago, requires a key | Responded 3 days ago |
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
MarcoPolo
MarcoPolo is a data computer that connects to your databases, warehouses, cloud storage, and SaaS applications, and provides a workspace where AI can query, correlate, analyze, and act on that data. The MarcoPolo plugin is the most effective way to connect Claude to this computer - it bundles the MCP connection with skills and a subagent that guide Claude through proven data workflows.
PolarJay
Facts, prices and FAQ for PolarJay, which tracks what AI assistants say about a company.
How to run each
MarcoPolo As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install marcopolo@claude-communityPolarJay As a remote MCP server
claude mcp add --transport http polarjay https://polarjay.com/api/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
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: MarcoPolo · What it can do: PolarJay · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. 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.