Brazilian company registry (CNPJ) lookup routed through the AIsa gateway. Resolve the full registered profile of a Brazilian company office (establishment) from its 14-digit CNPJ tax ID: legal name, trade name, registration status, address, shareholder structure, and economic activities. Flat pricing at $0.00528 per call (1 credit per lookup). A "company not found" (HTTP 404) still returns a valid API response and is billed 1 credit; only 429, 5xx, and network errors are not billed.
About CNPJá API via AIsa
Review the Service identity, supported languages, protocol versions, and source metadata discovered by the directory.
Service details
Service Id
c5e6acc4-6189-4ad2-bff9-56c00fe68e15
Service origin
https://api.aisa.one
ListedSeptember 24, 2026, 6:37 PM
Last checkedSeptember 24, 2026, 7:57 PM
Protocol details
SourceOpenAPI
Endpoints
Endpoint details are saved from the OpenAPI document. Authentication requirements and prices are advertised information, not a verified payment or access guarantee. The document may contain additional endpoints.Open OpenAPI document
GET/cnpja/office/{taxId}
CNPJ Office Lookup
Look up the registered profile of a Brazilian company office (establishment) by its 14-digit CNPJ tax ID. Returns the office's legal/company name, trade name (`alias`), registration status, founding date, full address, shareholder/member structure, and primary/secondary economic activities (CNAE).
Billed $0.00528 per call (1 credit per lookup). A "company not found" result returns HTTP 404 with a valid JSON body and is still billed 1 credit; only 429, 5xx, and network errors are not billed.Price unavailableThe operation requires declared authentication; API keys, bearer tokens and other schemes are not evidence of AEP support.