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OpenAPI Specification

openapi: 3.2.0
info:
  title: Everhour Invoices API
  description: The Everhour API is a RESTful interface providing programmatic access to time tracking, timesheets, timers, projects, tasks, clients, invoices, expenses, resource scheduling, time off, and reporting data in Everhour.
  version: '1.2'
  contact:
    name: Everhour
    url: https://everhour.com
    email: ask@everhour.com
servers:
- url: https://api.everhour.com
  description: Everhour production API
security:
- apiKey: []
tags:
- name: Invoices
  description: Invoices generated from tracked time and expenses.
paths:
  /invoices:
    get:
      operationId: getAllInvoices
      tags:
      - Invoices
      summary: Get all invoices
      description: Returns all invoices.
      responses:
        '200':
          description: A list of invoices.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Invoice'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/TooManyRequests'
  /invoices/{invoiceId}:
    parameters:
    - $ref: '#/components/parameters/InvoiceId'
    get:
      operationId: getInvoice
      tags:
      - Invoices
      summary: Get invoice
      description: Returns a single invoice by ID.
      responses:
        '200':
          description: The invoice.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Invoice'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/TooManyRequests'
    put:
      operationId: updateInvoice
      tags:
      - Invoices
      summary: Update invoice
      description: Updates invoice details, tax, discount, and line items.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InvoiceUpdateRequest'
      responses:
        '200':
          description: The updated invoice.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Invoice'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/TooManyRequests'
    delete:
      operationId: deleteInvoice
      tags:
      - Invoices
      summary: Delete invoice
      description: Deletes an invoice.
      responses:
        '204':
          description: Invoice deleted.
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/TooManyRequests'
  /clients/{clientId}/invoices:
    post:
      operationId: createInvoice
      tags:
      - Invoices
      summary: Create invoice
      description: Creates an invoice for a client from uninvoiced time and expenses within a date range.
      parameters:
      - $ref: '#/components/parameters/ClientId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InvoiceCreateRequest'
      responses:
        '201':
          description: The created invoice.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Invoice'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/TooManyRequests'
  /invoices/{invoiceId}/reset-time:
    post:
      operationId: refreshInvoiceLineItems
      tags:
      - Invoices
      summary: Refresh invoice line items
      description: Rebuilds the invoice line items from current time and expense data.
      parameters:
      - $ref: '#/components/parameters/InvoiceId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InvoiceRefreshRequest'
      responses:
        '200':
          description: The refreshed invoice.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Invoice'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/TooManyRequests'
  /invoices/{invoiceId}/{status}:
    post:
      operationId: setInvoiceStatus
      tags:
      - Invoices
      summary: Mark invoice as draft, sent, or paid
      description: Transitions an invoice between draft, sent, and paid statuses.
      parameters:
      - $ref: '#/components/parameters/InvoiceId'
      - name: status
        in: path
        required: true
        description: Target invoice status.
        schema:
          type: string
          enum:
          - draft
          - sent
          - paid
      responses:
        '200':
          description: The invoice with the new status.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Invoice'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/TooManyRequests'
  /invoices/{invoiceId}/export:
    post:
      operationId: exportInvoice
      tags:
      - Invoices
      summary: Export invoice to Xero, QuickBooks, or FreshBooks
      description: Exports the invoice to a connected accounting integration.
      parameters:
      - $ref: '#/components/parameters/InvoiceId'
      responses:
        '200':
          description: The exported invoice.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Invoice'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/TooManyRequests'
components:
  parameters:
    InvoiceId:
      name: invoiceId
      in: path
      required: true
      description: Invoice ID.
      schema:
        type: integer
    ClientId:
      name: clientId
      in: path
      required: true
      description: Client ID.
      schema:
        type: integer
  schemas:
    InvoiceCreateRequest:
      type: object
      properties:
        limitDateFrom:
          type: string
          format: date
        limitDateTill:
          type: string
          format: date
        includeExpenses:
          type: boolean
        includeTime:
          type: boolean
        projects:
          type: array
          items:
            type: string
        tax:
          type: object
          properties:
            rate:
              type: number
            amount:
              type: integer
        discount:
          type: object
          properties:
            rate:
              type: number
            amount:
              type: integer
    Client:
      type: object
      properties:
        id:
          type: integer
        name:
          type: string
        projects:
          type: array
          description: Project IDs linked to the client.
          items:
            type: string
        businessDetails:
          type: string
        budget:
          $ref: '#/components/schemas/ClientBudget'
    InvoiceRefreshRequest:
      type: object
      properties:
        limitDateFrom:
          type: string
          format: date
        limitDateTill:
          type: string
          format: date
        includeExpenses:
          type: boolean
        includeTime:
          type: boolean
        projects:
          type: array
          items:
            type: string
        expenseMask:
          type: string
        timeMask:
          type: string
    InvoiceItem:
      type: object
      properties:
        id:
          type: integer
        name:
          type: string
        billedTime:
          type: integer
          description: Time in seconds.
        listAmount:
          type: integer
          description: Amount in cents.
        netAmount:
          type: integer
        totalAmount:
          type: integer
        custom:
          type: boolean
        taxable:
          type: integer
        position:
          type: integer
        createdAt:
          type: string
    Invoice:
      type: object
      properties:
        id:
          type: integer
        client:
          $ref: '#/components/schemas/Client'
        createdAt:
          type: string
        createdBy:
          $ref: '#/components/schemas/User'
        dueDate:
          type: string
          format: date
        issueDate:
          type: string
          format: date
        limitDateFrom:
          type: string
          format: date
        limitDateTill:
          type: string
          format: date
        discount:
          type: object
          properties:
            amount:
              type: integer
            rate:
              type: number
        tax:
          type: object
          properties:
            amount:
              type: integer
            rate:
              type: number
        includeExpenses:
          type: boolean
        includeTime:
          type: boolean
        invoiceItems:
          type: array
          items:
            $ref: '#/components/schemas/InvoiceItem'
        listAmount:
          type: integer
          description: List amount in cents (without discount and taxes).
        netAmount:
          type: integer
          description: Net amount in cents (with discount, without taxes).
        totalAmount:
          type: integer
          description: Total amount in cents (with discount and taxes).
        totalTime:
          type: integer
          description: Total invoice time in seconds.
        projects:
          type: array
          items:
            type: string
        publicId:
          type: string
        status:
          type: string
          enum:
          - draft
          - sent
          - paid
    Error:
      type: object
      properties:
        code:
          type: integer
        message:
          type: string
    User:
      type: object
      properties:
        id:
          type: integer
        name:
          type: string
        headline:
          type: string
        avatarUrl:
          type: string
        role:
          type: string
          enum:
          - admin
          - supervisor
          - member
        status:
          type: string
          enum:
          - active
          - invited
          - pending
          - removed
    ClientBudget:
      type: object
      required:
      - type
      - budget
      - period
      properties:
        type:
          type: string
          description: Budget type - money, time, or costs.
          enum:
          - money
          - time
          - costs
        budget:
          type: integer
          description: Budget value in cents (money) or seconds (time).
        period:
          type: string
          enum:
          - general
          - monthly
          - weekly
          - daily
        appliedFrom:
          type: string
          format: date
        disallowOverbudget:
          type: boolean
        excludeUnbillableTime:
          type: boolean
        excludeExpenses:
          type: boolean
        threshold:
          type: integer
          description: Email admins when this percentage (1-100) of the budget is reached.
        progress:
          type: integer
          readOnly: true
          description: Current budget usage in cents or seconds.
    InvoiceUpdateRequest:
      type: object
      properties:
        publicId:
          type: string
        issueDate:
          type: string
          format: date
        dueDate:
          type: string
          format: date
        reference:
          type: string
        publicNotes:
          type: string
        tax:
          type: object
          properties:
            rate:
              type: number
            amount:
              type: integer
        discount:
          type: object
          properties:
            rate:
              type: number
            amount:
              type: integer
        invoiceItems:
          type: array
          items:
            $ref: '#/components/schemas/InvoiceItem'
  responses:
    TooManyRequests:
      description: Rate limit exceeded (around 20 requests per 10 seconds per API key). The Retry-After response header specifies the number of seconds to wait before making another request.
      headers:
        Retry-After:
          description: Seconds to wait before retrying.
          schema:
            type: integer
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Missing or invalid X-Api-Key header.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: X-Api-Key
      description: API key from the bottom of your Everhour profile page.