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

# Retrieve Issuer

> Retrieves registered issuer information and certificate status.



## OpenAPI

````yaml /openapi.en.yaml get /v1/issuers/{issuerId}
openapi: 3.1.0
info:
  title: Bolta API
  description: >
    The Bolta e-tax invoice API. [API Overview](/en/api-introduction/overview) |
    [Authentication guide](/en/api-introduction/authentication) | [Use
    cases](/en/api-introduction/usecase-b2b)
  version: 1.0.0
servers:
  - url: https://xapi.bolta.io
    description: Bolta API server
security:
  - basicAuth: []
tags:
  - name: Tax Invoice
    description: >
      Issue and manage e-tax invoices. [Calculating the issuance
      amount](/en/api-introduction/issuance-guide) | [Amendment
      types](/en/api-introduction/amendment-guide)
  - name: Reverse Issuance
    description: >
      Request and manage reverse issuance of e-tax invoices. [Email-approval
      reverse issuance](/en/api-introduction/usecase-reverse-email) |
      [Simple-approval reverse
      issuance](/en/api-introduction/usecase-reverse-simple)
  - name: Cash Receipt
    description: >
      Issue, cancel, and check the status of cash receipts. Issuance and
      cancellation are asynchronous. Check the final result via webhook or the
      status API. [Cash receipt guide](/en/api-introduction/cash-receipt-guide)
      | [Cash receipt webhooks](/en/api-introduction/webhook-cash-receipt)
  - name: Issuer
    description: >
      Register and manage businesses that act as tax invoice issuers.
      Certificate requirements depend on the issuance type.
      [Glossary](/en/api-introduction/glossary) | [Delegated
      issuance](/en/api-introduction/usecase-delegated) | [Brokered Tax Invoice
      Issuance](/en/api-introduction/usecase-brokered)
  - name: Certificate
    description: >
      Register and manage issuer certificates. [Certificate
      registration](/en/api-introduction/certificate-registration)
paths:
  /v1/issuers/{issuerId}:
    get:
      tags:
        - Issuer
      summary: Retrieve Issuer
      description: Retrieves registered issuer information and certificate status.
      parameters:
        - $ref: '#/components/parameters/IssuerIdPath'
      responses:
        '200':
          description: Issuer retrieved
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Issuer'
        '403':
          description: No access to the issuer
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  parameters:
    IssuerIdPath:
      name: issuerId
      in: path
      description: Issuer identifier
      required: true
      schema:
        $ref: '#/components/schemas/IssuerId'
  schemas:
    Issuer:
      type: object
      description: Registered issuer and certificate status
      properties:
        issuerId:
          $ref: '#/components/schemas/IssuerId'
        identificationNumber:
          $ref: '#/components/schemas/BusinessRegistrationNumber'
        taxRegistrationId:
          anyOf:
            - $ref: '#/components/schemas/TaxRegistrationId'
            - type: 'null'
        organizationName:
          $ref: '#/components/schemas/OrganizationName'
        representativeName:
          $ref: '#/components/schemas/RepresentativeName'
        certificate:
          anyOf:
            - $ref: '#/components/schemas/IssuerCertificate'
            - type: 'null'
      required:
        - issuerId
        - identificationNumber
        - taxRegistrationId
        - organizationName
        - representativeName
        - certificate
    ErrorResponse:
      type: object
      description: The error response returned when an API request fails
      properties:
        code:
          type: string
          description: Error type identifier
        message:
          type: string
          description: Error description
        traceId:
          type: string
          description: Request trace identifier
      required:
        - code
        - message
        - traceId
    IssuerId:
      type: string
      title: Issuer identifier
      description: >-
        The identifier returned when an issuer is registered. Store the complete
        string as-is.
    BusinessRegistrationNumber:
      type: string
      title: Business registration number
      description: >-
        A checksum-valid 10-digit number without hyphens (-). Pattern:
        `^\d{10}$`
      pattern: ^\d{10}$
      examples:
        - '1234567891'
    TaxRegistrationId:
      type: string
      title: Sub-business place code
      description: '4 digits, excluding `0000`. Pattern: `^(?!0{4})\d{4}$`'
      pattern: ^(?!0{4})\d{4}$
      examples:
        - '0001'
        - '0002'
      minLength: 4
      maxLength: 4
    OrganizationName:
      type: string
      title: Organization name
      description: Organization name
      maxLength: 70
      minLength: 1
    RepresentativeName:
      type: string
      title: Representative name
      description: Representative name
      minLength: 1
      maxLength: 30
    IssuerCertificate:
      type: object
      properties:
        issuedAt:
          type: string
          format: date-time
          description: Certificate issuance timestamp
        expiresAt:
          type: string
          format: date-time
          description: Certificate expiration timestamp
      required:
        - issuedAt
        - expiresAt
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: >-
        Base64-encode your API key and pass it. Enter the API key as the
        username and leave the password empty.

````