Documentation

Introduction

Oten Fiscal is Oten Tecnologia’s REST API for electronic fiscal documents. This portal covers NFCom and the São Paulo municipal NFS-e.

What you will find here

• Authentication, environments, and the asynchronous flow.
• NFCom — SEFAZ issuance, queries, events, PDF, and XML.
• São Paulo NFS-e — municipal issuance, ISS, TributacaoRPS, and files.
• Full reference of routes, parameters, and examples.

Environments

https://api.sandbox.otentecnologia.com.br

https://api.otentecnologia.com.br

Use sandbox to validate the flow, then point the integration to production. Each environment has its own API key.

Limits and good practices

• Generate a unique `idIntegracao` per document. Retries with the same identifier will not create a duplicate invoice.
• NFS-e accepts up to 500 invoices in a single batch.
• Authorization time depends on the authorizer (SEFAZ or City Hall).
• Companies that have never issued via webservice in São Paulo usually go through a City Hall homologation step.