OpenSOSData – US Business Entity Search vs io.github.sophymarine/openregistry
OpenSOSData – US Business Entity Search is an MCP server published by OpenSOSData. Marketplaces we read that list it: 1 (Official MCP Registry). io.github.sophymarine/openregistry is an MCP server published by sophymarine. Marketplaces we read that list it: 2 (Official MCP Registry, Claude Code: claude-plugins-community). As of our marketplace pass on 2026-10-25. 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 |  OpenSOSData – US Business Entity Search |  io.github.sophymarine/openregistry |
|---|---|---|
| Official MCP Registry | Listed Version: 1.0.1 Forks (GitHub): 0 Stars (GitHub): 6 Not marked · First seen |
Listed Version: 3.0.0 Forks (GitHub): 2 Stars (GitHub): 22 Not marked · First seen |
| Claude Code: claude-plugins-community | Not listed | Listed Version: 1.0.0 Forks (GitHub): 2 Stars (GitHub): 22 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 | OpenSOSData – US Business Entity Search | io.github.sophymarine/openregistry |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | 6 (worse) | 22 (better) |
| Forks (GitHub) (differs) | 0 (worse) | 2 (better) |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server (mcp.opensosdata.com/mcp) | Remote server (openregistry.sophymarine.com/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) | Not a bundle | 12 |
| Licence (differs) | Not stated | CC-BY-4.0 |
| Repository (differs) | github.com/opensosdata/opensosdata-mcp | github.com/sophymarine/openregistry |
| Changes in the last 7 days (differs) | 2 | 0 |
| First seen (differs) | 2026-10-22 | 2026-10-11 |
| Endpoint at the last check (differs) | not checked yet | Responded 6 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
OpenSOSData – US Business Entity Search
Search US business entity records across all 53 jurisdictions in real time
io.github.sophymarine/openregistry
Live data from 80+ official national company registries. Unmodified. For KYB and due diligence.
How to run each
OpenSOSData – US Business Entity Search As a remote MCP server
claude mcp add --transport http opensosdata-us-business-entity-search https://mcp.opensosdata.com/mcpio.github.sophymarine/openregistry As a remote MCP server
claude mcp add --transport http openregistry https://openregistry.sophymarine.com/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only io.github.sophymarine/openregistry has a remote endpoint we 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: OpenSOSData – US Business Entity Search · What it can do: io.github.sophymarine/openregistry · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.