Efí Pay Contas (Account Opening) API

openapi: 3.0.3
info:
  title: Efí Pay Contas (Account Opening) API
  description: >-
    Account-opening API for Efí Pay partners. Programmatically open Brazilian
    "conta-simplificada" accounts for end-customers, retrieve their generated
    P12 certificates and API credentials, and manage account-related webhooks.
    Used by marketplaces, ERPs, and BaaS-style integrators.
  version: "1.0"
  contact:
    name: Efí Pay Developer Support
    url: https://dev.efipay.com.br/docs/abertura-de-contas
  license:
    name: Proprietary
servers:
  - url: https://abrircontas.api.efipay.com.br/v1
    description: Production
  - url: https://abrircontas-h.api.efipay.com.br/v1
    description: Homologation (Sandbox)
security:
  - oauth2Contas: []
tags:
  - name: Authorization
  - name: Accounts
  - name: Webhooks
paths:
  /oauth/token:
    post:
      tags: [Authorization]
      summary: Issue Contas Access Token
      operationId: contasAuthorize
      responses: { "200": { description: Token } }
  /conta-simplificada:
    post:
      tags: [Accounts]
      summary: Create Simplified Account
      operationId: createAccount
      responses: { "201": { description: Account created } }
  /conta-simplificada/{identificador}/certificado:
    post:
      tags: [Accounts]
      summary: Generate Account Certificate
      operationId: getAccountCertificate
      parameters: [{ name: identificador, in: path, required: true, schema: { type: string } }]
      responses: { "200": { description: P12 certificate issued } }
  /conta-simplificada/{identificador}/credenciais:
    get:
      tags: [Accounts]
      summary: Get Account Credentials
      operationId: getAccountCredentials
      parameters: [{ name: identificador, in: path, required: true, schema: { type: string } }]
      responses: { "200": { description: client_id + client_secret pair } }
  /webhook:
    post:
      tags: [Webhooks]
      summary: Configure Account Webhook
      operationId: accountConfigWebhook
      responses: { "201": { description: Webhook configured } }
  /webhook/{identificadorWebhook}:
    get:
      tags: [Webhooks]
      summary: Detail Account Webhook
      operationId: accountDetailWebhook
      parameters: [{ name: identificadorWebhook, in: path, required: true, schema: { type: string } }]
      responses: { "200": { description: Webhook } }
    delete:
      tags: [Webhooks]
      summary: Delete Account Webhook
      operationId: accountDeleteWebhook
      parameters: [{ name: identificadorWebhook, in: path, required: true, schema: { type: string } }]
      responses: { "204": { description: Deleted } }
  /webhooks:
    get:
      tags: [Webhooks]
      summary: List Account Webhooks
      operationId: accountListWebhook
      responses: { "200": { description: Webhooks } }
components:
  securitySchemes:
    oauth2Contas:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://abrircontas.api.efipay.com.br/v1/oauth/token
          scopes: {}
  schemas:
    Account:
      type: object
      properties:
        identificador: { type: string }
        cpf_cnpj: { type: string }
        razao_social: { type: string, nullable: true }
        status: { type: string }