US Business Verification (KYB) MCP Server

Connect Remote server

claude mcp add --transport http business-verification-mcp https://business-verification-mcp.sigrunner.workers.dev/mcp

{
  "mcpServers": {
    "business-verification-mcp": {
      "url": "https://business-verification-mcp.sigrunner.workers.dev/mcp"
    }
  }
}

{
  "servers": {
    "business-verification-mcp": {
      "type": "http",
      "url": "https://business-verification-mcp.sigrunner.workers.dev/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://business-verification-mcp.sigrunner.workers.dev/mcp

Tools 6 found in our last check

• verify_business

  KYB / know-your-business verification (FREE TASTE). Verify one or more US businesses against official, keyless state business-registry sources (currently NY, CO, CT). Each business may be a bare name string ("Palantir Technologies") or an object {name, state}. Returns one record…

• screen_sanctions

  OFAC SDN sanctions screening / watchlist screen per name. Screen one or more names directly against the live OFAC SDN (Specially Designated Nationals) sanctions list — no state lookup. Returns per-name verdict (clear | potential_match | match), matched program(s), the alias or p…

• list_states

  List the US states currently verifiable through this server (keyless, public-domain official registries) and how each is addressed. No network call.

• lookup_entity

  Authoritative lookup of ONE business by its registry entity_id within a state. Unlike verify_business this does NO fuzzy name matching — the entity_id is the registry primary key, so a hit is the single canonical row (match_confidence 1.0, match_tier "exact_id"). Returns the sam…

• search_entities

  Browse / enumerate businesses within ONE state whose official name begins with (then contains) a fragment — the "list the companies in this state" surface. Unlike verify_business (which collapses to the single best match) this returns a bounded, name-ordered LIST of candidate en…

• map_ownership

  Corporate OWNERSHIP GRAPH / UBO (ultimate beneficial owner) tracer for a company (FREE TASTE). Given a company NAME or its LEI, trace its ownership using the keyless GLEIF Global LEI relationship register (Level-2, CC0 public domain): the ultimate parent (the UBO control anchor)…

Details

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