Itaú Unibanco · Authentication Profile

Itau Unibanco Authentication

Authentication

Itaú Unibanco secures its APIs with apiKey, oauth2, and mtls across 2 declared security schemes, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the client_credentials flow(s).

CompanyBankingFinancial ServicesPaymentsPixOpen FinanceBrazilForeign ExchangeCredit
Methods: apiKey, oauth2, mtls Schemes: 2 OAuth flows: client_credentials API key in: query

Security Schemes

APIKey1 apiKey
· in: query (API Key)
OAuth 2.0 Client Credentials with mTLS oauth2

Source

Authentication Profile

Raw ↑ 
generated: '2026-10-18'
method: searched
source: https://devportal.itau.com.br/como-fazer-a-primeira-chamada-a-uma-api, https://devportal.itau.com.br/conceitos, openapi/ (8 document(s))
summary:
  types:
  - apiKey
  - oauth2
  - mtls
  api_key_in:
  - query
  oauth2_flows:
  - client_credentials
  mtls_required: true
schemes:
- name: APIKey1
  type: apiKey
  in: query
  parameter: API Key
  sources:
  - openapi/itau-unibanco-open-finance-opendata-accounts-openapi.yml
  - openapi/itau-unibanco-open-finance-opendata-creditcards-openapi.yml
  - openapi/itau-unibanco-open-finance-opendata-financings-openapi.yml
  - openapi/itau-unibanco-open-finance-opendata-invoicefinancings-openapi.yml
  - openapi/itau-unibanco-open-finance-opendata-loans-openapi.yml
  - openapi/itau-unibanco-open-finance-opendata-unarranged-openapi.yml
- name: OAuth 2.0 Client Credentials with mTLS
  type: oauth2
  flow: client_credentials
  token_url: Not publicly documented (requires login)
  scopes: []
  mtls_required: true
  sources:
  - https://devportal.itau.com.br/como-fazer-a-primeira-chamada-a-uma-api
  - https://devportal.itau.com.br/conceitos
docs: https://devportal.itau.com.br/como-fazer-a-primeira-chamada-a-uma-api
note: 'Open Finance APIs use API key authentication. Other APIs (Pix, payments, credit, etc.) use OAuth 2.0 Client Credentials with mutual TLS (mTLS) requiring dynamic certificates. Certificate generation requires login and commercial agreement.'

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