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Bareun — Korean NLP & Spell/Grammar Checking MCP server

online · 100% uptime
by bareun.ai·ai.bareun/bareun·v3.0.0
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Korean NLP MCP server: morphological analysis, tokenization, spell & grammar checking (Bareun)

A90/100grade A
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A90/100

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Bareun — Korean NLP & Spell/Grammar Checking tools

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Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 223ms (auth required)20/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityOAuth resource metadata advertised on 40115/15
  • Maintenancelast push 37 days ago12/15
  • Maintainer identitynamespace and repository owner differ; GitHub account older than a year; website matches verified namespace7/10
Overall 90/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Bareun — Korean NLP & Spell/Grammar Checking compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
90/100
higher than 83% of 48,255 servers
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
307 ms
faster than 47% of 30,031 servers

Install Bareun — Korean NLP & Spell/Grammar Checking in Claude Code, Cursor or VS Code

claude mcp add --transport http bareun https://api.bareun.ai/mcp
Add to Cursor

What the publisher says

From the Bareun — Korean NLP & Spell/Grammar Checking repository's README, as published. We do not edit it. Read it on GitHub

Bareun MCP Server — Korean NLP & Spell/Grammar Checking

바른(Bareun) is a Korean natural-language platform. This is its **MCP (Model

Context Protocol)** server — it lets any MCP-compatible AI tool (Claude, Cursor,

VS Code, Claude Desktop, …) perform Korean morphological analysis and

spell/grammar correction by calling Bareun as a tool.

Large language models still miss the subtle spacing, particle agreement, and confusable-word rules of Korean. Plug Bareun in as an MCP tool and your agent can hand off analysis and proofreading to a dedicated Korean engine, then use the result to produce more accurate Korean output.

  • Hosted endpoint: https://api.bareun.ai/mcp
  • Transport: Streamable HTTP (JSON-RPC 2.0) — no SSE, no extra port, no install
  • Auth: API key (api-key header or Authorization: Bearer )
  • Get an API key: https://bareun.ai

The /mcp endpoint is available on the spell-checker–included build of Bareun

(the morphological-analysis-only build does not expose /mcp). The same endpoint

works on self-hosted/on-prem installs — just swap the host.

What it looks like

Spelling & spacing — correctgrammar** (real output from https://api.bareun.ai/mcp):

Every fix comes back as a block, so an agent can explain the edit instead of silently rewriting the sentence:

Morphological analysis — analyzesyntax** (format: compact):

Homograph senses — analyzesyntax with withsense: true (beta): 배 in 배가 아프다 comes back with senseNo: 1 and its dictionary definition — 사람이나 동물의 몸에서 … 가슴과 엉덩이 사이의 부위 (belly, probability 0.87), plus the Urimalsaem entry id — so the agent knows which 배 it is reading.

Tools

correctgrammar options (all boolean, default off): treatastitle, disablesplitsentence, disablecaretspacing, disablevxspacing, enablelimitedpunctuation, disableconfusion, enablecleanupwhitespace, disabletypocorrection, enablesentencecheck.

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Bareun — Korean NLP & Spell/Grammar Checking: common questions

Is Bareun — Korean NLP & Spell/Grammar Checking MCP server safe?
Yes, by our scan: it is graded A (90/100). Read the Bareun — Korean NLP & Spell/Grammar Checking safety report
How do I install Bareun — Korean NLP & Spell/Grammar Checking?
It runs remotely at api.bareun.ai. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Bareun — Korean NLP & Spell/Grammar Checking need an API key?
No key to paste: it signs you in with OAuth when your client connects.
Is Bareun — Korean NLP & Spell/Grammar Checking maintained?
The last commit was 75 days ago (2026-08-21). The latest release is v3.0.0.
Is Bareun — Korean NLP & Spell/Grammar Checking up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Bareun — Korean NLP & Spell/Grammar Checking compare with other MCP servers?
safety score 90/100 (higher than 83% of 48,255 servers); uptime 100% (of our recent checks; the typical remote server answers 100%); response time 307 ms (faster than 47% of 30,031 servers). Full comparison.