4o-image APIと統合されたMCPサーバー実装により、LLMやその他のAIシステムが標準化されたプロトコルを介して画像を生成・編集できるようになります。シンプルなテキストプロンプトを使用して、高品質なアート、3Dキャラクター、カスタム画像を作成できます。
テキストから画像への生成：AIでテキストの説明から画像を作成する
画像編集: テキストプロンプトを使用して既存の画像を変換する
リアルタイムの進捗状況更新: 生成ステータスに関するフィードバックを取得
ブラウザ統合: 生成された画像をデフォルトのブラウザで自動的に開きます
Related MCP server: image-forge-mcp
画像を生成する
オプションの画像編集機能を使用して、テキストプロンプトに基づいて画像を生成
入力:
prompt （文字列、必須）: 希望する画像のテキスト説明
imageBase64 (文字列、オプション): 編集またはスタイル転送用の Base64 エンコードされた画像
4o-image.appでアカウントを登録する
ユーザーダッシュボードからAPIキーを取得する
サーバー実行時にAPIキーを環境変数として設定する
これをclaude_desktop_config.jsonに追加します:
{
"mcpServers": {
"4o-image": {
"command": "npx",
"args": [
"-y",
"4oimage-mcp"
],
"env": {
"API_KEY": "YOUR_API_KEY_HERE"
}
}
}
}Claude でこの MCP サーバーを使用する例を次に示します。
Generate an image of a dog running on the beach at sunsetクロードはMCPサーバーを使用して画像を生成します。画像はデフォルトのブラウザで自動的に開きます。また、クロードからの返信には画像への直接リンクも表示されます。
画像編集の場合は、ベースイメージを含めて、Claude にそれを変更するよう指示することができます。
Edit this image to make the sky more dramatic with storm cloudsこのMCPサーバーはMITライセンスに基づいてライセンスされています。MITライセンスの条件に従って、ソフトウェアを自由に使用、改変、配布することができます。
Generate images using the 4o-image API and automatically open the results in your browser.
This tool generates images based on your prompt and automatically opens them in your default browser, while also returning a clickable link.
The tool supports two modes:
Text-to-image - Create new images using just a text prompt
Image editing - Provide a base image and prompt for editing or style transfer
The response will include a direct link to the generated image and detailed information.
Visit our website: https://4o-image.app/
| Name | Required | Description | Default |
|---|---|---|---|
| imageBase64 | No | Optional base image (Base64 encoded) for image editing or upscaling | |
| prompt | Yes | Text description of the desired image content |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It adds valuable context beyond the input schema by describing automatic browser opening, return of a clickable link, and support for two modes. However, it does not cover important behavioral traits such as rate limits, authentication needs, error handling, or response format details, leaving gaps for a mutation tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is well-structured and front-loaded, starting with the core functionality and then detailing modes and responses. Most sentences add value, but the final promotional sentence ('Visit our website...') is extraneous and does not aid tool selection or invocation, slightly reducing efficiency.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (image generation with two modes), no annotations, and no output schema, the description is moderately complete. It covers purpose, usage modes, and some behavioral aspects (browser opening, link return), but lacks details on output structure, error cases, or operational constraints, which are important for a tool without structured output documentation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the input schema already documents both parameters (imageBase64 and prompt) adequately. The description adds marginal value by explaining the two modes that correspond to these parameters, but it does not provide additional syntax, format, or constraint details beyond what the schema states. This meets the baseline for high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Generate images using the 4o-image API' and specifies it 'automatically opens the results in your browser.' It distinguishes between text-to-image and image editing modes, providing specific functionality details. However, without sibling tools, differentiation from alternatives is not applicable, preventing a perfect score.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides clear usage context by outlining two modes (text-to-image and image editing) and indicating when to use each based on whether an imageBase64 parameter is provided. It mentions that the tool opens results in the browser and returns a clickable link, offering practical guidance. However, it lacks explicit exclusions or comparisons to alternatives, as no sibling tools exist.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
v1.0.0generateImageScored across 1 tool
With only one tool, there is no possibility of ambiguity or overlap between tools. The single tool 'generateImage' has a clear, distinct purpose for image generation and editing.
The tool name 'generateImage' follows a consistent verb_noun pattern, and with only one tool, there is no inconsistency to evaluate. The naming is clear and appropriate for its function.
A single tool is too few for the server's purpose of image generation and editing, as it lacks coverage for related operations like listing generated images, managing settings, or handling errors. This minimal set limits agent functionality and feels incomplete for the domain.
The tool surface is severely incomplete for an image generation server. While 'generateImage' covers creation and editing, there are obvious gaps such as no tools for retrieving past images, deleting images, or configuring generation parameters, which are essential for a full workflow.
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