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Overview

Document issuance APIFinance, tender, and vendor screening operations

Request business documents without entering a CAPTCHA.

Does someone have to enter security characters and move a file whenever a certificate is needed? Connect document requests and original PDF delivery to your internal workflow.

Create an API keyRead the API docs (opens in a new tab)

01

Frequently requested tax documents and certified copies of corporate registry.

Register your company's certificate for Hometax documents, or send just a corporation registration number for the corporate registry. Check the result, then retrieve the original PDF.

  • Business registration proof

    Korean or English

  • Business registration certificate reissue

    Reissue reason required

  • Tax payment certificate

    Payment receipt or other purposes

  • VAT tax base proof

    Specify the tax period

  • Standard financial statement proof

    For a filed business year

  • Certified copy of corporate registry

    View or submission copy, with or without canceled entries

02Request and response

From one request to its result

The sequence of calls between your service, the Bolta API, and the institution. Bolta handles certificates and connects to the institution.

03

From request to PDF, without manual CAPTCHA entry.

Connect document issuance to your workflow without waiting for someone to enter security characters. Receive the original PDF when issuance is complete.

  1. Choose a document
  2. Request a document
  3. Check the result
  4. Receive the original PDF

04Pricing and requirements

Before you get started.

Hometax document issuance

Only successful issuances are charged. Failures cost nothing, and test keys are never charged.

KRW 500 per document

Corporate registry (view copy)

For checking the register's contents. Request it with a corporation registration number, no certificate needed.

KRW 1,000 per document

Corporate registry (submission copy)

For submission to government offices or banks. Failed issuances are not charged.

KRW 1,500 per document

Failed document issuance does not deduct points.

  • Hometax documents can be issued only for the business associated with the API key, with a certificate registered in the Bolta dashboard. The corporate registry needs only a corporation registration number.
  • English is supported only for business registration proof and requires English information registered in Hometax. Document-specific tax arrears and filing conditions apply.
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05Build with your AI tool

Start with the AI tool you already use.

Copy a prompt with official documentation, prerequisites, and test goals into the AI tool you use for your project.

Document issuance API: Integration prompt

Official docs, product scope, and test steps

Read the prompt
Integrate this Bolta API into the current project.

Request business documents without entering a CAPTCHA.

Read the official documentation first and propose an implementation that fits the project's language and structure.

https://docs.bolta.io/llms.txt

https://docs.bolta.io/docs/api-introduction/quickstart

https://docs.bolta.io/docs/api-introduction/document-issuance

https://docs.bolta.io/docs/api-introduction/pricing

Prerequisites and scope:

- Hometax documents can be issued only for the business associated with the API key, with a certificate registered in the Bolta dashboard. The corporate registry needs only a corporation registration number.

- English is supported only for business registration proof and requires English information registered in Hometax. Document-specific tax arrears and filing conditions apply.

Hometax document issuance: KRW 500 per document
Corporate registry (view copy): KRW 1,000 per document
Corporate registry (submission copy): KRW 1,500 per document

Failed document issuance does not deduct points.

Read the API key from a server environment variable. Do not ask for secrets in chat. Start with the documented test key and test inputs.

Test goals: Use documented test inputs to distinguish acceptance, completion, and failure, and verify PDF retrieval. For the corporate registry, use the documented test corporation registration numbers. Do not create duplicate requests while results are being checked. Retrieve a fresh download link when one expires.

Do not invent undocumented features or responses. Identify open questions and summarize test results and production-readiness steps.

06FAQ

Questions before you integrate

Integration steps and error codes are in the API docs.

Read the API docs (opens in a new tab)
Which business can we issue documents for?

Hometax documents are issued for the business associated with the API key. Certified copies of corporate registry can be issued for any corporation with its registration number.

Are failed requests charged?

Failed issuance does not deduct points.

Are all documents available in English?

Only business registration proof supports English. The business must have English information registered in Hometax.

Start integrating today. No contract needed.

Go from request to PDF without manual CAPTCHA entry. Failed issuances cost nothing, and test keys are never charged.

Want to talk through scope first?Talk to us about the API

Create an API key