OpenSOSData MCP

An MCP server that allows AI agents to search US business entity records across all 53 jurisdictions in real time. It supports tools for searching entities by name, checking entity status for KYB compliance, batch searching, and listing supported jurisdictions.

Endpoint and access

OAuth sign-in: the first time you connect, your client opens the vendor's own authorization prompt in a browser.

Community listingStreamable HTTPOAuth sign-inEndpoint checked 2026-11-01Published by Open SOS Data

You need:API key via dashboard

MCP endpoint (Streamable HTTP)

https://mcp.opensosdata.com/mcp

Vendor documentation

What you can do with it

Search for a US business entity by name in a specific state
Verify if a business entity is active, inactive, or dissolved
Search for multiple business entities simultaneously across different states
Check current credit balance and remaining lookups

Source and maintenance

Community listingRegistry 1.0.1

mcp-registry: io.github.OpenSOSData/mcp-server@1.0.1 Source repository Project website

Maintenance checked: Nov 1, 2026, 8:12 AM UTC

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 220 ms
95th percentile latency: 220 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 1, 2026, 8:18 AM UTC · probe · passed · 220 ms · metadata changed · refuses unauthenticated initialize (HTTP 401)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http opensosdata-mcp https://mcp.opensosdata.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add opensosdata-mcp --url https://mcp.opensosdata.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable opensosdata-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "opensosdata-mcp": {
      "url": "https://mcp.opensosdata.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "opensosdata-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.opensosdata.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start opensosdata-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "opensosdata-mcp": {
      "type": "http",
      "url": "https://mcp.opensosdata.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http opensosdata-mcp https://mcp.opensosdata.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "opensosdata-mcp": {
      "url": "https://mcp.opensosdata.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "opensosdata-mcp": {
      "serverUrl": "https://mcp.opensosdata.com/mcp"
    }
  }
}

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