{"uid":"cap_GbYbtS0Z2hhLaI_AUEjIU","slug":"saylor-innovations-czech-business-register-ares-lookup-2fe979f1","name":"Saylor Innovations Czech Business Register (ARES) Lookup","description":"Czech company register (ARES) lookup by IČO number or name - legal name, address, VAT ID, founding date, NACE activity codes, tax office and active status","url":"https://saylorinnovations.com/api/business/czech?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["ico"],"properties":{"ico":{"type":"string","description":"8-digit IČO company number"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["total","companies"],"properties":{"match":{"type":"string","description":"How the company was found: IČO or name search"},"total":{"type":"number","description":"Total number of matching items"},"source":{"type":"string","description":"Data source the values come from"},"companies":{"type":"array","items":{"type":"object","properties":{"ico":{"type":["string","null"],"description":"Czech company identification number (IČO)"},"city":{"description":"City"},"nace":{"type":["array","null"],"description":"NACE industry codes"},"name":{"description":"Name"},"ended":{"description":"Date the company ended, null when active"},"active":{"type":["boolean","null"],"description":"True when the company is active"},"vat_id":{"description":"Vat id identifier"},"address":{"description":"Account or contract address"},"founded":{"type":["string","null"],"description":"Founding date"},"data_updated":{"description":"Data updated"},"legal_form_code":{"description":"Legal form code"},"tax_office_code":{"description":"Tax office code"}}},"description":"Companies with IČO, name, address, legal form code, founding date, VAT id, NACE code and active 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up Czech company data from the ARES register by IČO number, returning legal name, address, VAT ID, founding date, NACE activity codes, tax office code, and active status","exampleAgentPrompt":"Can you look up Czech company IČO 27082440 in the ARES register and tell me its official legal name, registered address, VAT ID, and whether it's still active?","exampleUseCases":[{"title":"KYB check on Czech supplier","prompt":"I need to verify a Czech supplier before onboarding them — can you look up IČO 45274649 in the Czech business register and tell me their official name, address, VAT ID, and whether they're currently active?"},{"title":"Invoice VAT ID retrieval","prompt":"I received an invoice from a Czech company with IČO 00177041 but it's missing the VAT ID — can you pull their details from the ARES register so I can validate the invoice?"},{"title":"Due diligence on Czech partner","prompt":"We're considering a partnership with a Czech firm whose IČO is 26168685 — can you check the ARES register and tell me their legal name, founding date, NACE industry codes, and active status?"}],"resultDescription":"Returns a JSON object with the total number of matching companies and an array of company records, each containing: IČO, legal name, registered city and address, VAT ID, NACE industry codes, founding date, end date (null if active), active boolean flag, legal form code, tax office code, data source label, and last data update timestamp.","failureModes":["Invalid or non-existent IČO returns zero results in the companies array","Malformed IČO (not 8 digits) may return an error or empty result","Company with no VAT registration returns null vat_id","Recently dissolved companies may show active:false with an ended date","Data may lag behind real-time ARES updates due to caching"],"whenToPreferThis":"Use this endpoint when you need authoritative Czech company data sourced directly from the ARES government register. Prefer it for KYB/KYC workflows, invoice validation, supplier onboarding, or any compliance check specifically involving Czech legal entities identified by their 8-digit IČO number. This is specialized for Czech Republic and not suitable for companies in other jurisdictions.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T18:52:04.620Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-czech-business-register-ares-lookup-2fe979f1"}