Polish KYB vs Ucc Liens
A side-by-side look at the Polish KYB and Ucc Liens MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Polish KYB for legal work over a hosted endpoint; choose Ucc Liens for legal as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Polish KYB when
- You need dedicated capabilities in the Legal domain.
- You prefer a remote HTTP/SSE transport.
- Its auth model fits you: API key required.
- You want tools like
search_companies, get_company_people, get_company_debt_registry.
Choose Ucc Liens when
- You need dedicated capabilities in the Legal domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Legal | Legal |
| Quality signal | 53/100 · Good | 41/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Remote HTTP/SSE | Local subprocess (stdio) |
| Auth | API key required | No auth required |
| Pricing | Not declared | Free |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 0 |
| Directory activity | 1 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 6 | Not listed |
| Full listing | View Polish KYB | View Ucc Liens |
Tools & capabilities
Polish KYB tools 6
search_companiesFind the company and read its KRS registry profile and VAT status.get_company_peopleManagement board, supervisory board, shareholders and beneficial owners (CRBR).get_company_debt_registryInsolvency and restructuring proceedings (KRZ).get_company_court_gazetteCourt and Commercial Gazette (MSiG) notices.get_company_sanctionsSanctions lists and KNF financial supervision register.get_company_secured_liabilitiesSecured liabilities and articles of association.
Ucc Liens tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Polish KYB
{
"mcpServers": {
"polish-kyb": {
"url": "https://compabase.com/api/mcp/kyb"
}
}
}
Ucc Liens
{
"mcpServers": {
"ucc-liens": {
"command": "npx",
"args": [
"-y",
"@pipeworx/mcp-ucc-liens"
]
}
}
}
Frequently asked questions
Polish KYB is categorized under Legal and uses a remote HTTP/SSE transport. Ucc Liens belongs to Legal and uses a local stdio subprocess. Pick Polish KYB for legal work and Ucc Liens for legal.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Polish KYB has no declared pricing — check the project's own site. Auth: api key required. Ucc Liens is listed as free. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add polish-kyb and ucc-liens as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Polish KYB has a quality signal of 53/100 (Good) with 1 views, 0 installs and 0 GitHub stars. Ucc Liens has 41/100 (Fair) with 0 views, 0 installs and 0 GitHub stars.