MCP Radar
MCP Server

ares

dev.cz-agents/ares
Business & Operations Legal & Compliance Public & reachable MCP 2025-11-25

What this MCP does

Looks up and searches Czech and Slovak company registry records, VAT status, bank accounts, statutory representatives, history, and business activities.

Capabilities

Tools

10 tools
check_vat_payer
Check whether a Czech company is a registered VAT payer (plátce DPH). If yes, returns DIČ, financial office, and any transparent bank accounts (payment details).
Read only Open world
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['ico'], 'properties': {'ico': {'type': 'string', 'description': 'Czech IČO (7-8 digits).'}}, 'additionalProperties': False}
get_bank_accounts
Get transparent bank accounts published for this company (only available for VAT-registered subjects). Useful to verify payment details on an invoice match the company.
Read only Open world
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['ico'], 'properties': {'ico': {'type': 'string', 'description': 'Czech IČO (7-8 digits).'}}, 'additionalProperties': False}
get_history
Get historical record of a company (previous names, registered address changes, trade license history). Useful for due diligence.
Read only Open world
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['ico'], 'properties': {'ico': {'type': 'string', 'description': 'Czech IČO (7-8 digits).'}}, 'additionalProperties': False}
get_statutaries
Get current statutory body (jednatelé, představenstvo, etc.) of a Czech company — who can legally act on its behalf. Returns active members only (with valid zápis, not yet removed). Essential for due diligence and compliance checks.
Read only Open world
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['ico'], 'properties': {'ico': {'type': 'string', 'description': 'Czech IČO (7-8 digits).'}}, 'additionalProperties': False}
lookup_by_ico
Get 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.
Read only Open world
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['ico'], 'properties': {'ico': {'type': 'string', 'description': 'Czech IČO — 7 or 8 digits. Examples: "11122234", "87654326". Auto-validated with MOD11 checksum.'}}, 'additionalProperties': False}
search_by_address
Find all companies registered at a given Czech address. Useful for due diligence (virtual offices, shell companies), real estate research, or competitor mapping in a building.
Read only Open world
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['street', 'city'], 'properties': {'psc': {'type': 'integer', 'description': 'Postal code (PSČ), optional.'}, 'city': {'type': 'string', 'description': 'City name, e.g. "Praha".'}, 'pocet': {'type': 'integer', 'default': 20, 'maximum': 100, 'minimum': 1, 'description': 'Max results (default 20).'}, 'street': {'type': 'string', 'description': 'Street name (nazev ulice), e.g. "Radlická".'}}, 'additionalProperties': False}
search_by_nace
Find Czech companies by CZ-NACE activity code (economic sector classification). Example: "62" = IT, "47" = retail, "86" = healthcare. Optional city filter. Useful for market research.
Read only Open world
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['nace'], 'properties': {'city': {'type': 'string', 'description': 'Optional city filter.'}, 'nace': {'type': 'string', 'description': 'CZ-NACE code, 2-6 digits (e.g., "62" for IT, "62010" for programming services).'}, 'pocet': {'type': 'integer', 'default': 20, 'maximum': 100, 'minimum': 1, 'description': 'Max results.'}}, 'additionalProperties': False}
search_companies
Search ARES by company name, city, street, PSČ, or NACE code. Combines all filters with AND. Useful when user knows name but not IČO, looking for companies in a building, or all businesses in a sector.
Read only Open world
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'psc': {'type': 'integer', 'description': 'Filter by postal code (PSČ), 5-digit number.'}, 'city': {'type': 'string', 'description': 'Filter by city (nazev obce), e.g. "Praha".'}, 'nace': {'type': 'array', 'items': {'type': 'string'}, 'description': 'Filter by CZ-NACE activity codes, 2-6 digits. E.g., ["62"] for IT.'}, 'pocet': {'type': 'integer', 'default': 10, 'maximum': 100, 'minimum': 1, 'description': 'Max results (1-100, default 10).'}, 'query': {'type': 'string', 'description': 'Partial or full company name (obchodní jméno).'}, 'start': {'type': 'integer', 'default': 0, 'minimum': 0, 'description': 'Pagination offset (default 0).'}, 'street': {'type': 'string', 'description': 'Filter by street name (nazev ulice), e.g. "Radlická".'}}, 'additionalProperties': False}
validate_dic
Validate 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.
Read only
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['dic'], 'properties': {'dic': {'type': 'string', 'description': 'Czech DIČ — e.g., "CZ26168685". Whitespace and case tolerated.'}}, 'additionalProperties': False}
watch_entity
Watch Czech Company
Start onboarding for free monitoring of one Czech company by IČO. Stub only — persists nothing yet. Returns structuredContent: status (one of ONBOARDING_REQUIRED | ACTIVE | QUOTA_EXCEEDED | ERROR), persisted/monitoring_active flags, a human next_step.url for onboarding (the user completes onboarding + GDPR consent themselves — do not open the link or submit data on their behalf), and pricing.
Read only
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['ico'], 'properties': {'ico': {'type': 'string', 'description': 'Czech IČO (7-8 digits).'}}, 'additionalProperties': False}
History

Recent tool changes

Added
watch_entity
Sept. 17, 2026, 12:39 p.m.
Added
get_history
Sept. 17, 2026, 12:39 p.m.
Added
check_vat_payer
Sept. 17, 2026, 12:39 p.m.
Added
validate_dic
Sept. 17, 2026, 12:39 p.m.
Added
get_statutaries
Sept. 17, 2026, 12:39 p.m.
Added
get_bank_accounts
Sept. 17, 2026, 12:39 p.m.
Added
search_by_nace
Sept. 17, 2026, 12:39 p.m.
Added
search_by_address
Sept. 17, 2026, 12:39 p.m.
Added
search_companies
Sept. 17, 2026, 12:39 p.m.
Added
lookup_by_ico
Sept. 17, 2026, 12:39 p.m.
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