
A api to generate boletos in Brazil.
Boleto.Cloud API is a free Finance API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.
Emita Grátis Boletos Registrados com Pix. Plataforma multibancos com API unificada, automação de recorrência, notificações e 2ª via. Receba direto na conta.
Details from boleto.cloud.

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The Boleto.Cloud API is provided by Boleto Cloud (boleto.cloud). Emita Grátis Boletos Registrados com Pix. Plataforma multibancos com API unificada, automação de recorrência, notificações e 2ª via. Receba direto na conta.
Yes. The Boleto.Cloud API is listed in the Finance category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Yes. The Boleto.Cloud API uses apiKey authentication, so you need to register for credentials before making requests.
CORS support for the Boleto.Cloud API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The Boleto.Cloud API is served over HTTPS, so it's safe to use in production.