WebExtract
Web page to clean Markdown or fixed-schema JSON (product/price, tables). Free 20 calls/day.
我該用這個嗎
品質與安全性
A
根據工具定義與協定合規性的自動化分析。
上下文成本
~1,608Token（工具定義）
~9.0 KB典型回應大小
中等的注意力影響（128k 上下文的 1.26%）
這是每次將伺服器的工具載入模型上下文時所消耗的約略 token 數量。數量越高，可用於其他工作的注意力就越少。
安裝
一鍵安裝
將以下內容加入你的 `claude_desktop_config.json` 檔案：
{
"mcpServers": {
"extract": {
"url": "https://api.webextract.dev/mcp"
}
}
}遠端端點
https://api.webextract.dev/mcpstreamable-http它能做什麼
工具清單
工具（2）
🟢 唯讀🟡 寫入🔴 刪除⚪ 未知
🟢extract_url(url)
Fetch a public web page (robots.txt respected) and return clean Markdown plus fixed-schema JSON: article metadata, product/price, tables. Free 20 calls/day per IP; pass 'Authorization: Bearer <key>' for prepaid credits.
輸入結構描述
{
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "Public http(s) URL"
}
},
"required": [
"url"
]
}輸出結構描述
{
"type": "object",
"properties": {
"url": {
"type": "string"
},
"final_url": {
"type": "string"
},
"fetched_at": {
"type": "string"
},
"schema_version": {
"type": "string"
},
"markdown": {
"type": "string"
},
"markdown_truncated": {
"type": "boolean"
},
"word_count": {
"type": "integer"
},
"metadata": {
"type": "object",
"properties": {
"title": {
"type": [
"string",
"null"
]
},
"description": {
"type": [
"string",
"null"
]
},
"authors": {
"type": "array",
"items": {
"type": "string"
}
},
"published_at": {
"type": [
"string",
"null"
]
},
"modified_at": {
"type": [
"string",
"null"
]
},
"site_name": {
"type": [
"string",
"null"
]
},
"language": {
"type": [
"string",
"null"
]
},
"canonical_url": {
"type": [
"string",
"null"
]
},
"image": {
"type": [
"string",
"null"
]
},
"type": {
"type": [
"string",
"null"
]
}
}
},
"product": {
"type": [
"object",
"null"
],
"properties": {
"name": {
"type": [
"string",
"null"
]
},
"brand": {
"type": [
"string",
"null"
]
},
"sku": {
"type": [
"string",
"null"
]
},
"gtin": {
"type": [
"string",
"null"
]
},
"description": {
"type": [
"string",
"null"
]
},
"image": {
"type": [
"string",
"null"
]
},
"price": {
"type": [
"number",
"null"
]
},
"price_high": {
"type": [
"number",
"null"
]
},
"currency": {
"type": [
"string",
"null"
]
},
"availability": {
"type": [
"string",
"null"
]
},
"rating": {
"type": [
"object",
"null"
]
},
"source": {
"type": [
"string",
"null"
],
"enum": [
"json-ld",
"opengraph",
"microdata",
"heuristic",
null
],
"description": "Extraction method for the flat fields (not the content source; see content_source)"
},
"price_detail": {
"type": "object",
"required": [
"status",
"prices"
],
"description": "Preferred price field. Never contains 0. status=unresolved always comes with unresolved.reason.",
"properties": {
"status": {
"type": "string",
"enum": [
"resolved",
"partial",
"unresolved"
]
},
"currency": {
"type": [
"string",
"null"
]
},
"currency_basis": {
"type": [
"string",
"null"
],
"enum": [
"declared",
"symbol",
null
]
},
"prices": {
"type": "array",
"items": {
"type": "object",
"required": [
"type",
"amount",
"currency"
],
"properties": {
"type": {
"type": "string",
"enum": [
"list",
"sale",
"installment",
"current"
],
"description": "current = the only price shown, no discount information; sale = current price with a higher list price on the page"
},
"amount": {
"type": "number",
"exclusiveMinimum": 0
},
"amount_high": {
"type": [
"number",
"null"
]
},
"currency": {
"type": [
"string",
"null"
]
},
"variant": {
"type": [
"object",
"null"
],
"properties": {
"id": {
"type": [
"string",
"null"
]
},
"sku": {
"type": [
"string",
"null"
]
},
"name": {
"type": [
"string",
"null"
]
},
"attributes": {
"type": [
"object",
"null"
]
},
"url": {
"type": [
"string",
"null"
]
},
"match": {
"type": "string",
"enum": [
"offer_url",
"offer_sku",
"shopify_variant_id",
"url_param+dom_selected",
"dom_selected"
]
}
}
},
"installment": {
"type": [
"object",
"null"
]
},
"method": {
"type": "string",
"enum": [
"json-ld",
"opengraph",
"microdata",
"heuristic",
"dom",
"shopify_meta"
]
},
"evidence": {
"type": [
"string",
"null"
]
}
}
}
},
"range": {
"type": [
"object",
"null"
],
"properties": {
"low": {
"type": "number"
},
"high": {
"type": [
"number",
"null"
]
},
"currency": {
"type": [
"string",
"null"
]
},
"basis": {
"type": "string",
"enum": [
"aggregate_offer",
"offers",
"product_group_variants"
]
},
"offer_count": {
"type": [
"integer",
"null"
]
}
}
},
"selected_variant": {
"type": [
"object",
"null"
],
"properties": {
"id": {
"type": [
"string",
"null"
]
},
"sku": {
"type": [
"string",
"null"
]
},
"name": {
"type": [
"string",
"null"
]
},
"attributes": {
"type": [
"object",
"null"
]
},
"url": {
"type": [
"string",
"null"
]
},
"match": {
"type": "string",
"enum": [
"offer_url",
"offer_sku",
"shopify_variant_id",
"url_param+dom_selected",
"dom_selected"
]
}
}
},
"variants": {
"type": "array",
"maxItems": 100,
"items": {
"type": "object",
"properties": {
"id": {
"type": [
"string",
"null"
]
},
"sku": {
"type": [
"string",
"null"
]
},
"name": {
"type": [
"string",
"null"
]
},
"attributes": {
"type": [
"object",
"null"
]
},
"url": {
"type": [
"string",
"null"
]
},
"amount": {
"type": [
"number",
"null"
]
},
"currency": {
"type": [
"string",
"null"
]
},
"availability": {
"type": [
"string",
"null"
]
},
"source": {
"type": [
"string",
"null"
]
},
"evidence": {
"type": [
"string",
"null"
]
}
}
}
},
"unresolved": {
"type": [
"object",
"null"
],
"required": [
"reason"
],
"properties": {
"reason": {
"type": "string",
"enum": [
"no_offer_in_structured_data",
"price_not_numeric",
"zero_price",
"js_rendered_suspected",
"template_placeholder",
"no_price_found",
"variant_not_matched",
"listing_page",
"no_product_markup",
"not_html"
]
},
"detail": {
"type": [
"string",
"null"
]
}
}
},
"warnings": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
}
},
"tables": {
"type": "array",
"items": {
"type": "object",
"properties": {
"index": {
"type": "integer"
},
"caption": {
"type": [
"string",
"null"
]
},
"headers": {
"type": "array",
"items": {
"type": "string"
}
},
"rows": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "string"
}
}
},
"checks": {
"type": "object",
"properties": {
"row_count": {
"type": "integer"
},
"column_count": {
"type": "integer"
},
"consistent_width": {
"type": "boolean"
}
}
}
}
}
},
"content_source": {
"type": "string",
"enum": [
"raw_html",
"rendered"
],
"description": "Where the content came from: raw_html = the HTTP response body, no JavaScript executed (current behaviour); rendered = after headless rendering (not offered yet)"
},
"product_unresolved": {
"type": [
"object",
"null"
],
"required": [
"reason"
],
"properties": {
"reason": {
"type": "string",
"enum": [
"no_offer_in_structured_data",
"price_not_numeric",
"zero_price",
"js_rendered_suspected",
"template_placeholder",
"no_price_found",
"variant_not_matched",
"listing_page",
"no_product_markup",
"not_html"
]
},
"detail": {
"type": [
"string",
"null"
]
}
},
"description": "Only when product is null: why no product was extracted (e.g. listing_page)"
}
},
"required": [
"url",
"final_url",
"fetched_at",
"schema_version",
"markdown",
"metadata",
"product",
"tables"
]
}🟢page_markdown(url)
Fetch a public web page (robots.txt respected) and return clean Markdown only. Cheaper than extract_url (0.4 credit). Free 20 calls/day per IP; pass 'Authorization: Bearer <key>' for prepaid credits.
輸入結構描述
{
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "Public http(s) URL"
}
},
"required": [
"url"
]
}輸出結構描述
{
"type": "object",
"properties": {
"url": {
"type": "string"
},
"final_url": {
"type": "string"
},
"fetched_at": {
"type": "string"
},
"content_source": {
"type": "string",
"enum": [
"raw_html",
"rendered"
],
"description": "Where the content came from: raw_html = the HTTP response body, no JavaScript executed (current behaviour); rendered = after headless rendering (not offered yet)"
},
"title": {
"type": [
"string",
"null"
]
},
"markdown": {
"type": "string"
},
"markdown_truncated": {
"type": "boolean"
},
"word_count": {
"type": "integer"
}
},
"required": [
"url",
"final_url",
"markdown"
]
}社群
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