> ## Documentation Index
> Fetch the complete documentation index at: https://docs.contazen.ro/llms.txt
> Use this file to discover all available pages before exploring further.

# List Suppliers

> Retrieve a paginated list of all suppliers



## OpenAPI

````yaml GET /suppliers
openapi: 3.1.0
info:
  title: Contazen API
  version: 1.2.0
  description: >
    Build powerful integrations with the Contazen invoicing platform. The
    Contazen API is organized around REST, 

    has predictable resource-oriented URLs, accepts JSON request bodies, returns
    JSON-encoded responses, 

    and uses standard HTTP response codes, authentication, and verbs.


    ## Authentication

    The API uses Bearer token authentication. Include your API key in the
    Authorization header.


    ### Getting your API Key

    1. Log in to your Contazen account

    2. Navigate to Settings > API

    3. Generate or copy your API key (starts with `sk_live_` for production or
    `sk_test_` for testing)


    ### Using the API Key

    Include your API key in the Authorization header:

    ```

    Authorization: Bearer sk_live_YOUR_API_KEY

    ```


    ### Example Request with cURL

    ```bash

    curl --request GET \
      --url https://api.contazen.ro/v1/clients \
      --header 'Authorization: Bearer sk_live_YOUR_API_KEY' \
      --header 'Accept: application/json'
    ```


    ## Rate Limiting

    - 1000 requests per hour per API key

    - 100 create operations per minute per API key


    Rate limit information is included in response headers:

    - `X-RateLimit-Limit`: Maximum requests allowed

    - `X-RateLimit-Remaining`: Requests remaining

    - `X-RateLimit-Reset`: Reset time (Unix timestamp)


    ## Pagination

    All list endpoints return paginated results with the following format:

    ```json

    {
      "success": true,
      "data": {
        "object": "list",
        "data": [...],
        "has_more": true,
        "total": 245,
        "page": 1,
        "per_page": 50,
        "total_pages": 5
      },
      "meta": {
        "version": "v1",
        "request_id": "req_1a2b3c4d",
        "response_time": "23.45ms"
      }
    }

    ```


    ## Multi-Work-Point Access

    API keys belong to a specific work point but can access data from all work
    points

    within the same parent company.


    ## Error Handling

    The API uses conventional HTTP response codes to indicate success or
    failure. 

    In general: 2xx codes indicate success, 4xx codes indicate an error due to
    the 

    information provided, and 5xx codes indicate an error with Contazen's
    servers.


    ## Expanding Nested Objects

    Many endpoints support the `expand` parameter to include related objects in
    the response.

    This follows the Stripe API pattern. For example:

    - `expand[]=lines` - Include invoice line items

    - `expand[]=payments` - Include payment records

    - `expand[]=client` - Include full client object


    ## Localization

    The API supports multiple languages through:

    - `locale` query parameter (en, ro)

    - `Accept-Language` header

    - Default: English
  contact:
    name: Contazen Support
    email: support@contazen.ro
    url: https://contazen.ro
  license:
    name: Proprietary
    url: https://www.contazen.ro/termeni-si-conditii-de-utilizare/
servers:
  - url: https://api.contazen.ro/v1
    description: Production API server
security:
  - bearerAuth: []
tags:
  - name: Authentication
    description: API authentication and test endpoints
  - name: Clients
    description: Manage your customers (B2B and B2C)
  - name: Invoices
    description: Create and manage invoices, proformas, and receipts
  - name: Products
    description: Manage your product and service catalog
  - name: Expenses
    description: Track and manage business expenses
  - name: Expense Categories
    description: Organize expenses with categories
  - name: Suppliers
    description: Manage expense suppliers and vendors
  - name: Settings
    description: API settings and configuration
  - name: Payments
    description: Payments received against invoices
  - name: Receipts
    description: Cash receipts (chitanțe) — standalone or paired with an invoice
  - name: Company Lookup
    description: Romanian company lookup (ANAF / VIES)
  - name: Invoice Series
    description: Manage invoice numbering series
  - name: Bank Accounts
    description: Manage IBAN bank accounts
  - name: E-Factura
    description: Romanian e-invoicing status and configuration
  - name: Supplier Bills
    description: Supplier invoices imported from the ANAF SPV inbox
  - name: VAT Rates
    description: Firm-scoped custom VAT rates on top of the Romanian catalog
  - name: Currencies
    description: Currencies enabled for the firm's bill templates
  - name: Languages
    description: Languages enabled for the firm's bill templates
  - name: Conta
    description: |
      Public ANAF data for the firm's CUI: fiscal profile (TVA scope, RTVAI,
      split TVA, status, e-Factura registration, CAEN) and annual balance
      sheets (cifra de afaceri, profit, capitaluri, datorii, salariați).

      Powered by the public ANAF webservices (no OAuth required for these
      endpoints). The data is cached locally and refreshed on demand via
      the `/sync` actions.
paths:
  /suppliers:
    get:
      tags:
        - Suppliers
      summary: List all suppliers
      description: Retrieves a paginated list of suppliers
      operationId: listSuppliers
      parameters:
        - name: page
          in: query
          schema:
            type: integer
            minimum: 1
            default: 1
          description: Page number
        - name: per_page
          in: query
          schema:
            type: integer
            minimum: 1
            maximum: 100
            default: 50
          description: Items per page
        - name: search
          in: query
          schema:
            type: string
          description: Search in name, CUI, email
        - name: country
          in: query
          schema:
            type: string
          description: Filter by country code
        - name: is_vat_payer
          in: query
          schema:
            type: integer
            enum:
              - 0
              - 1
          description: Filter by VAT payer status
        - name: has_expenses
          in: query
          schema:
            type: boolean
          description: Only suppliers with expenses
        - name: sort
          in: query
          schema:
            type: string
            enum:
              - name
              - created_at
              - usage
            default: name
          description: Sort field
        - name: order
          in: query
          schema:
            type: string
            enum:
              - asc
              - desc
            default: asc
          description: Sort order
        - name: expand
          in: query
          schema:
            type: string
          description: Comma-separated list (statistics,recent_expenses)
        - name: with_totals
          in: query
          schema:
            type: integer
            enum:
              - 0
              - 1
          description: |
            When `1`, attaches a `metadata` object to each supplier with
            `expense_count`, `total_expenses`, and `unpaid_total` computed
            via inline subqueries (avoids N+1). Cheaper than
            `expand=statistics`.
      responses:
        '200':
          description: List of suppliers
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                  data:
                    $ref: '#/components/schemas/SupplierList'
                  meta:
                    $ref: '#/components/schemas/ResponseMeta'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
components:
  schemas:
    SupplierList:
      type: object
      allOf:
        - $ref: '#/components/schemas/PaginationMeta'
        - type: object
          properties:
            data:
              type: array
              items:
                $ref: '#/components/schemas/Supplier'
    ResponseMeta:
      type: object
      properties:
        version:
          type: string
          default: v1
        request_id:
          type: string
          format: uuid
          description: Unique request identifier for debugging
        response_time:
          type: string
          example: 23.45ms
    PaginationMeta:
      type: object
      properties:
        object:
          type: string
          default: list
        has_more:
          type: boolean
        total:
          type: integer
        page:
          type: integer
        per_page:
          type: integer
        total_pages:
          type: integer
    Supplier:
      type: object
      required:
        - id
        - name
      properties:
        id:
          type: string
          description: Unique identifier (CzUid)
          example: sup_1a2b3c4d5e
        name:
          type: string
        cui:
          type: string
          description: Tax identification number
        rc:
          type: string
          description: Company registration number
        cnp:
          type: string
          description: Personal identification number
        address:
          type: string
        city:
          type: string
        county:
          type: string
        country:
          type: string
        postal_code:
          type: string
        phone:
          type: string
        email:
          type: string
        iban:
          type: string
        bank:
          type: string
        contact_person:
          type: string
        contact_phone:
          type: string
        contact_email:
          type: string
        is_vat_payer:
          type: boolean
        statistics:
          type: object
          properties:
            expense_count:
              type: integer
            total_amount:
              type: number
            paid_amount:
              type: number
            unpaid_amount:
              type: number
        recent_expenses:
          type: array
          items:
            type: object
            properties:
              id:
                type: string
              reference:
                type: string
              amount:
                type: number
              currency:
                type: string
              date:
                type: string
                format: date
              is_paid:
                type: boolean
        metadata:
          type: object
          description: |
            Lightweight expense aggregates. Returned by `GET /suppliers` only
            when `with_totals=1` is supplied. Cheaper than `expand=statistics`
            since the totals come from a single inline subquery rather than
            a per-row N+1 follow-up. Amounts are expressed in the firm's
            accounting currency.
          properties:
            expense_count:
              type: integer
              description: Number of non-deleted expenses for this supplier
            total_expenses:
              type: number
              description: Sum of `account_amount_total` across all matching expenses
            unpaid_total:
              type: number
              description: Sum of `account_amount_total` across unpaid matching expenses
        created_at:
          type: string
          format: date-time
        updated_at:
          type: string
          format: date-time
    ErrorResponse:
      type: object
      required:
        - success
        - error
      properties:
        success:
          type: boolean
          default: false
        error:
          type: object
          required:
            - message
            - type
            - code
          properties:
            message:
              type: string
              description: Human-readable error message
            type:
              type: string
              enum:
                - api_error
                - authentication_error
                - invalid_request_error
                - rate_limit_error
                - permission_error
                - validation_error
            code:
              type: string
              description: Machine-readable error code
            param:
              type: string
              description: The parameter that caused the error
            doc_url:
              type: string
              format: uri
              description: URL to relevant documentation
        meta:
          $ref: '#/components/schemas/ResponseMeta'
  responses:
    UnauthorizedError:
      description: API key is missing or invalid
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Use your API key (sk_live_xxx or sk_test_xxx)

````