# OpenSOSData Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## OpenSOSData

Search US business entity records across all 53 jurisdictions in real time

- Record: https://musedirectory.ai/connector/opensosdata
- Category: Research & Data
- Developer: OpenSOSData (https://opensosdata.com)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, sign-in needed, 263ms, checked 2026-10-29T19:11:20Z
- Endpoint: https://mcp.opensosdata.com/mcp
- Auth: Sign in with your account; Pricing: unknown
- Screening: Screened, no issues found (2026-10-29T19:11:20Z)
- Source: Found in the official MCP Registry (io.github.OpenSOSData/mcp-server) https://registry.modelcontextprotocol.io/v0/servers?search=io.github.OpenSOSData%2Fmcp-server

Connects to US Secretary of State databases to search business entity records across all 53 jurisdictions. Muse can look up company information, verify business status, and retrieve registration details for research or verification purposes.

Example request: "Look up the business registration details for a company I'm considering working with."

How to connect: OpenSOSData is not in Muse's Connectors list yet, and it needs you to sign in with your OpenSOSData account. Apps that need this kind of sign-in usually cannot be used from a Muse chat yet. Follow it here and we will tell you when it reaches Muse.

Screening checks:
- MCP handshake: pass (Requires sign-in (publishes OAuth metadata))
- Domain against threat feeds (Cloudflare security DNS): pass (mcp.opensosdata.com, opensosdata.com not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: n/a (Tools are behind sign-in)
- Inputs asking for passwords, card numbers or seed phrases: n/a (Tools are behind sign-in)
- Domain and redirects: pass (Domain registered 196 days ago)
- AI review of purpose and tool behavior: pass (No concerns)