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Blogger MCP

TypeScript MCP server for Blogger drafts, post management, project devlogs with screenshots, and Strava running retrospectives.

한국어 안내

Blogger MCP는 Codex, Claude 같은 MCP 클라이언트에서 Blogger 글을 작성하고 관리하기 위한 TypeScript 기반 MCP 서버입니다. 기본 동작은 항상 초안 생성이며, 실제 게시는 publish_blogger_post를 명시적으로 호출할 때만 실행됩니다.

주요 기능:

  • Blogger 글 초안 생성

  • 최근 글/초안 목록 조회

  • 기존 글 수정

  • 명시적 게시

  • Google OAuth refresh token 로컬 저장

  • Markdown을 HTML로 변환해 Blogger 본문에 삽입

  • 이미지 URL 또는 로컬 이미지 경로를 글에 삽입

  • 프로젝트 개발일지 초안 생성

  • Strava 활동 데이터 기반 러닝 회고 초안 생성

빠른 시작

git clone https://github.com/powerofdeen/BloggerMCP.git
cd BloggerMCP
npm install
cp .env.example .env
npm run build

.env에 Blogger용 Google OAuth 값과 블로그 ID를 입력합니다.

GOOGLE_CLIENT_ID=...
GOOGLE_CLIENT_SECRET=...
GOOGLE_REDIRECT_URI=http://localhost:3000/oauth2callback
BLOGGER_BLOG_ID=...

Google OAuth 로그인을 진행합니다.

npm run oauth:google

터미널에 출력된 Google 로그인 URL을 열고 승인하면, http://localhost:3000/oauth2callback에서 refresh token이 자동으로 저장됩니다. 토큰은 .tokens/google.json에 저장되며 Git에는 포함되지 않습니다.

Codex에 등록

codex mcp add blogger -- /opt/homebrew/bin/npm --prefix /Users/powerofdeen/Documents/BloggerMCP run start

등록 확인:

codex mcp list

Codex에서 /mcp를 입력해도 blogger 서버가 보이는지 확인할 수 있습니다.

Claude Desktop에 등록

macOS 기준 Claude Desktop 설정 파일:

~/Library/Application Support/Claude/claude_desktop_config.json

설정 예시:

{
  "mcpServers": {
    "blogger": {
      "command": "/opt/homebrew/bin/npm",
      "args": [
        "--prefix",
        "/Users/powerofdeen/Documents/BloggerMCP",
        "run",
        "start"
      ]
    }
  }
}

저장 후 Claude Desktop을 완전히 종료했다가 다시 실행하면 됩니다.

사용 예시

초안 생성:

create_blogger_draft로 제목은 "테스트 글", 본문은 "## 테스트\nBlogger MCP로 만든 첫 초안입니다."로 초안 만들어줘

최근 글/초안 조회:

list_blogger_posts로 최근 글과 초안 보여줘

프로젝트 개발일지 초안 생성:

create_project_devlog_draft로 프로젝트명 BloggerMCP, 오늘 작업 내용은 "Blogger MCP 서버 구현", "OAuth callback helper 추가"로 초안 만들어줘

게시:

publish_blogger_post로 postId="POST_ID" confirmPublish=true 실행해줘

제공 도구

  • blogger_login: Google OAuth 로그인 URL 생성 또는 OAuth code 교환

  • create_blogger_draft: Markdown 기반 Blogger 초안 생성

  • list_blogger_posts: 최근 글/초안 목록 조회

  • update_blogger_post: 기존 Blogger 글 수정

  • publish_blogger_post: 명시적 게시

  • score_blog_post: 글 구조와 SEO 기본 점수 확인

  • upload_post_image: 이미지 URL 또는 로컬 이미지 삽입 준비

  • create_project_devlog_draft: 프로젝트 개발일지 초안 생성

  • create_strava_activity_draft: Strava 활동 기반 러닝 회고 초안 생성

안전 원칙

  • 기본은 항상 초안 생성입니다.

  • 게시하려면 publish_blogger_post를 명시적으로 호출해야 합니다.

  • publish_blogger_post에는 confirmPublish: true가 필요합니다.

  • .env, .tokens는 Git에 올리지 않습니다.

  • client secret, access token, refresh token은 로그나 응답에 출력하지 않습니다.

Related MCP server: MCP Docs RAG Server

Features

  • Create Blogger posts as drafts by default.

  • List recent live posts and drafts.

  • Update existing posts without publishing.

  • Publish only through publish_blogger_post with confirmPublish: true.

  • Store Google OAuth refresh tokens locally.

  • Convert Markdown input to Blogger HTML.

  • Insert image URLs or local images into post HTML.

  • Auto-detect latest screenshots from a screenshots directory.

  • Separate Strava OAuth/client module for running retrospective drafts.

  • No client secret, access token, or refresh token is logged or returned.

Setup

npm install
cp .env.example .env
npm run build

Fill .env:

GOOGLE_CLIENT_ID=...
GOOGLE_CLIENT_SECRET=...
GOOGLE_REDIRECT_URI=http://localhost:3000/oauth2callback
BLOGGER_BLOG_ID=...

STRAVA_CLIENT_ID=...
STRAVA_CLIENT_SECRET=...
STRAVA_REDIRECT_URI=http://localhost:3000/strava/callback

Google Cloud / Blogger API

  1. Open Google Cloud Console.

  2. Create or select a project.

  3. Enable Blogger API v3.

  4. Configure OAuth consent screen.

  5. Create an OAuth client ID.

  6. Add the redirect URI from .env, for example http://localhost:3000/oauth2callback.

  7. Copy client ID and client secret into .env.

  8. Find your Blogger blog ID in Blogger settings or via Blogger API and set BLOGGER_BLOG_ID.

First login:

Recommended local callback flow:

npm run oauth:google

Then open the printed Google OAuth URL. After approval, the local http://localhost:3000/oauth2callback page stores the refresh token and shows a success message.

Manual fallback:

  1. Call MCP tool blogger_login with no code.

  2. Open the returned authUrl.

  3. Copy the code query parameter from the redirect URL.

  4. Call blogger_login again with that code.

The refresh token is stored under .tokens/google.json.

Strava Setup

  1. Create an app at Strava API Settings.

  2. Set the callback domain/redirect to match STRAVA_REDIRECT_URI.

  3. Put STRAVA_CLIENT_ID and STRAVA_CLIENT_SECRET in .env.

  4. Call create_strava_activity_draft with mode: "auth_url".

  5. Open the URL, approve access, then call the tool with mode: "exchange_code" and the returned code.

The Strava token is stored under .tokens/strava.json.

MCP Configuration

Example:

{
  "mcpServers": {
    "blogger": {
      "command": "node",
      "args": ["/absolute/path/to/BloggerMCP/dist/server.js"],
      "env": {
        "NODE_ENV": "production"
      }
    }
  }
}

For local development:

{
  "mcpServers": {
    "blogger-dev": {
      "command": "npm",
      "args": ["run", "dev"],
      "cwd": "/absolute/path/to/BloggerMCP"
    }
  }
}

Tools

blogger_login

Returns a Google OAuth URL, or exchanges an OAuth code and stores a refresh token.

create_blogger_draft

Creates a draft post from Markdown.

Inputs include:

  • title

  • markdown

  • labels

  • imageUrls

  • imagePaths

  • altTexts

Local image paths require:

BLOGGER_IMAGE_ASSET_DIR=public/blogger-assets
BLOGGER_IMAGE_PUBLIC_BASE_URL=https://your-site.example/blogger-assets

If image upload/copy fails, draft creation continues and warnings are returned.

list_blogger_posts

Lists recent posts. Use status: ["draft"] for drafts only.

update_blogger_post

Patches title, content, labels, and optional images. It does not publish.

publish_blogger_post

Publishes a post only when called explicitly:

{
  "postId": "123",
  "confirmPublish": true
}

score_blog_post

Scores title length, heading structure, content depth, images, wrap-up, and SEO labels.

upload_post_image

Prepares image URLs for post insertion. Supports:

  • png

  • jpg

  • jpeg

  • webp

create_project_devlog_draft

Creates a structured devlog draft:

  1. 오늘 한 일

  2. 문제 상황

  3. 해결 방법

  4. 결과 화면

  5. 배운 점

  6. 다음 작업

It can auto-load latest images from screenshots under projectDir, plus explicit screenshotPaths.

create_strava_activity_draft

Modes:

  • auth_url

  • exchange_code

  • list_recent

  • create_draft

The running retrospective includes distance, time, average pace, average heart rate, elevation, activity name, date, and lap pace data when available.

Image Storage Design

Blogger API image upload support is limited, so image handling is separated behind ImageStorage.

Current adapters:

  • URL images: directly inserted as <img src="...">.

  • Local public assets: copy local files into BLOGGER_IMAGE_ASSET_DIR, then build URLs from BLOGGER_IMAGE_PUBLIC_BASE_URL.

Future adapters can add Google Photos, Google Drive, S3, or another CDN without changing Blogger tools.

Safety Notes

  • Draft creation is the default.

  • Nothing publishes unless publish_blogger_post is explicitly called.

  • publish_blogger_post requires confirmPublish: true.

  • Client secrets and tokens must stay in .env and .tokens.

  • .env and .tokens are ignored by git.

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