Ares
Czech & Slovak business registry — company lookup by IČO, name, legal form, VAT. Official ARES.
Connect it
Settings → Connectors → Add custom connector
URL: https://ares.cz-agents.dev/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://ares.cz-agents.dev/mcp{
"mcpServers": {
"ares": {
"url": "https://ares.cz-agents.dev/mcp"
}
}
}claude mcp add --transport http ares https://ares.cz-agents.dev/mcp{
"servers": {
"ares": {
"type": "http",
"url": "https://ares.cz-agents.dev/mcp"
}
}
}{
"mcpServers": {
"ares": {
"command": "npx",
"args": [
"-y",
"@czagents/ares@0.1.7"
]
}
}
}claude mcp add ares -- npx -y @czagents/ares@0.1.711 tools, verified live
lookup_by_icoread-onlyGet a single Czech company record by its IČO (8-digit Business ID). Returns official name, registered address, legal form, VAT ID (DIČ), founding date, and trade license activities. Returns null if IČO is not found in ARES.
search_companiesread-onlySearch ARES by company name, city, street, PSČ, or NACE code. Combines all filters with AND. Useful when user knows name but not IČO, looking for companies in a building, or all businesses in a sector.
search_by_addressread-onlyFind all companies registered at a given Czech address. Useful for due diligence (virtual offices, shell companies), real estate research, or competitor mapping in a building.
search_by_naceread-onlyFind Czech companies by CZ-NACE activity code (economic sector classification). Example: "62" = IT, "47" = retail, "86" = healthcare. Optional city filter. Useful for market research.
get_bank_accountsread-onlyGet transparent bank accounts published for this company (only available for VAT-registered subjects). Useful to verify payment details on an invoice match the company.
get_statutariesread-onlyGet current statutory body (jednatelé, představenstvo, etc.) of a Czech company — who can legally act on its behalf. Returns active members only (with valid zápis, not yet removed). Essential for due diligence and compliance checks.
get_ownersread-onlyGet owners of a Czech company from the Veřejný rejstřík (public register) — společníci (partners of s.r.o./v.o.s./k.s.) and akcionáři (shareholders of a.s.), with their share (vklad/splaceno/velikost podílu) exactly as published, including historical members with their date of removal (datum výmazu). Raw registry data only — no ownership scoring, risk assessment, or cross-company aggregation. Esse
validate_dicread-onlyValidate a Czech DIČ (VAT ID). Format check: "CZ" + 8-10 digits. For 8-digit tail (legal entities) also runs MOD11 checksum against the embedded IČO.
check_vat_payerread-onlyCheck whether a Czech company is a registered VAT payer (plátce DPH). If yes, returns DIČ, financial office, and any transparent bank accounts (payment details).
get_historyread-onlyGet historical record of a company (previous names, registered address changes, trade license history). Useful for due diligence.
watch_entityread-onlyStart onboarding for free monitoring of one Czech company by IČO. Stub only — persists nothing yet. Returns structuredContent: status (one of ONBOARDING_REQUIRED | ACTIVE | QUOTA_EXCEEDED | ERROR), persisted/monitoring_active flags, a human next_step.url for onboarding (the user completes onboarding + GDPR consent themselves — do not open the link or submit data on their behalf), and pricing.
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