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Infrastructure layer

One API,every model

Every LLM through one interface

Use one OpenAI-compatible API for GPT, Claude, Gemini, Grok, and Korean models. Billing is in KRW.

Every LLM through one interface
Start

Sign up, then change one base_url

01

Sign up

Join with email, Kakao, or Naver. No card is required.

02

Top up

Recharge in KRW. Tax invoices are issued automatically.

03

API key

Create a plm_ key and change only the base_url to start calling models.

Core

One API, Korean defaults

01

ONE API

One OpenAI-compatible API for GPT, Claude, Gemini, Grok, and Korean models.

02

Availability

Automatic retry and same-tier fallback when a provider has an outage.

03

Live KRW costs

Each response shows its KRW cost in real time.

04

PIPA masking

Real-time sensitive data masking for Korean privacy requirements.

Compare

Made for use in Korea

ItemPleumRouterOpenRouter
Billing currencyKRW ₩USD $
Tax invoiceAutomaticUnavailable
Payment methodsKRW (card/account)Overseas cards only
Business verificationNational Tax Service verificationUnsupported
PII maskingAutomatic / toggleableUnsupported
Social loginKakao · NaverUnsupported
Pricing

Pay as you go, in KRW

Model markup

0%

At cost

Top-up fee

3%

Per top-up

FX fee

0.5%

Fixed rate

Signup bonus

₩1,000

On signup

First-payment bonus

₩5,000

On your first payment

Quickstart

Keep the OpenAI SDK. Change only base_url.

from openai import OpenAI

client = OpenAI(
    base_url="https://router.pleum.ai/v1",
    api_key="plm_...",
)

resp = client.chat.completions.create(
    model="gpt-5.5",
    messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)
Reliability

It behaves like infrastructure

0+

Supported models

0+

Supported providers

0.0%

Availability target

0.0%

FX fee (fixed)

Supported providers

Start

Switch oneline.

Get a ₩1,000 signup bonus and a ₩5,000 first-payment bonus.