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Manifest MCP Server

@noma-py

基本情報

Manifest MCP Server について

Gives AI agents a structured action manifest for any webpage — what's clickable, fillable, and submittable, so agents can act on a page instead of just reading it.

Manifest MCP Server の設定

以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。

{
  "mcpServers": {
    "manifest": {
      "url": "https://manifest.omfang.io/mcp"
    }
  }
}

Manifest MCP Server のツール

1

Fetch a structured action manifest (clickable/fillable/submittable elements) for a web page.

概要

What is Manifest?

Manifest is a service that turns any webpage into a structured action manifest for AI agents. Instead of returning raw HTML or a screenshot, it returns JSON describing clickable, fillable, and submittable elements on the page.

How to use Manifest?

Get an API key from app.manifest.omfang.io, then call the get_manifest tool with a URL. The server returns a structured manifest of actions. Manifest also works as a Python SDK (pip install manifest-api) and has a LangChain tool integration.

Key features of Manifest?

  • Returns click, fill, and submit actions, not just page content
  • Detects required fields, input types, and disabled elements
  • Caches manifests for near-instant repeat calls
  • Works as MCP server, Python SDK, or LangChain tool

Use cases of Manifest?

  • Let an AI agent fill and submit web forms without hardcoded selectors
  • Navigate sites with frequently changing UIs reliably
  • Build browser-automation agents that reason about available actions

よくある質問

1

What’s the difference between Manifest and a browser automation tool like Browserbase?

Browserbase gives agent access to a browser; Manifest gives structured understanding of actions on a page. They are complementary, not competing.

2

Does Manifest require an API key?

Yes, get one at app.manifest.omfang.io. A free tier is available.

3

What does the response look like?

A JSON object with the page's current state, a list of actions (type, label, description, required flag), and navigation links.

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