CNPJ.WIKI
FreeLiveLast verified 24 Sept 2026
Looks up Brazilian companies by CNPJ using official Receita Federal registry data, no key.
Example request
curl -s 'https://api.cnpj.wiki/v1/cnpj/00000000000191'
Free tier, in plain English
The lookup API is free with no signup or key, rate-limited to 60 requests per minute per IP.
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