Semantic Scholar 每月有 8,198,672 次造訪，月增率 +5.8%，定價模式為免費。Serpex 每月有 2,405 次造訪，成長率 -34.3%，定價模式為免費增值、免費試用、付費。
Semantic Scholar is a free, non-commercial academic search engine built by the Allen Institute for AI (Ai2). It indexes more than 240 million papers from every field of science and uses machine learning to extract meaning from abstracts, citations, figures and tables, so researchers find relevant work faster than with keyword-only search.
價格實惠的即時搜尋 API，一次呼叫就回傳結構化 JSON 與網頁正文。
| 面向／指標 | | |
|---|---|---|
| 官方網域 | semanticscholar.org | serpex.dev |
| 定價模式 | 免費 | 免費增值、免費試用、付費 |
| 每月造訪次數 | 819.87萬 (8,198,672) | 2405 (2,405) |
| 月流量變化量 | +45.07萬 (+5.8%) | -1255 (-34.3%) |
| 主要市場與市佔 | 🇺🇸 美國 (22.9%) | 🇮🇳 印度 (91.3%) |
| 每月直接造訪 | 188.44萬 | 936 |
| 使用者評分 | 4.8 | 4.3 |
| 支援平台 | 網站 | 網站 |
Semantic Scholar is a free, non-commercial academic search engine built by the Allen Institute for AI (Ai2). It indexes more than 240 million papers from every field of science and uses machine learning to extract meaning from abstracts, citations, figures and tables, so researchers find relevant work faster than with keyword-only search.
Search 241 million-plus publications from every scientific field using natural-language queries that match meaning rather than exact keywords.
Each indexed paper gets a one-sentence machine-generated TLDR so you can triage results before committing to reading the full text.
An augmented PDF reader that highlights citations, definitions, equations and figures inline, and shows which later papers cited the passage you are reading.
See how a paper was cited, whether citations were influential, and which references shaped the work — useful for literature reviews and citation chasing.
價格實惠的即時搜尋 API，一次呼叫就回傳結構化 JSON 與網頁正文。
送出查詢即可取得乾淨、結構化的即時網頁結果 JSON，可直接解析、排序或餵給模型。
用同一組 API Key 把任意 URL 轉成乾淨易讀的 Markdown，去除版型雜訊，讓擷取文本可直接用於 RAG 與摘要。
請求會在數個底層搜尋來源間路由，並搭配健康監控與自動重試，單一來源無結果不會中斷你的管線。
提供 Python、JavaScript、MCP 與 LangChain 的官方函式庫與範例，幾行程式碼就能為代理或應用加入即時搜尋。
專項更強Broader real-time web search capabilities with academic filters, but less specialized for deep bibliographic citation analysis than Semantic Scholar.
專項更強Broader real-time web search capabilities with academic filters, but less specialized for deep bibliographic citation analysis than Semantic Scholar.
專項更強具備優秀的視覺化引用收集與文獻追蹤推薦功能，但缺少行內論文摘要功能。
Bright Data's SERP API is a real-time search engine scraping API that returns Google, Bing, DuckDuckGo, and Yandex results in JSON, HTML, or Markdown, with automatic proxy management, unblocking, and parsing, and geo-targeting at no extra cost.
Bright Data's SERP API is a real-time search engine scraping API that returns Google, Bing, DuckDuckGo, and Yandex results in JSON, HTML, or Markdown, with automatic proxy management, unblocking, and parsing, and geo-targeting at no extra cost.
專項更強提供卓越的學術論文關聯視覺化圖譜對應，但缺乏傳統的關鍵字搜尋與全文閱讀工具。
為文獻回顧與可稽核系統性回顧打造的 AI 原生研究工作台
