Liminary 每月有 12,246 次造訪,月增率 -30.4%,定價模式為免費增值。OpenCrab 每月有 0 次造訪,成長率 -100%,定價模式為免費增值。

OpenCrab is an ontology-centered Graph RAG platform that turns documents, URLs and notes into reusable knowledge packs you can query from any AI client over MCP.
| 面向/指標 | ![]() | ![]() |
|---|---|---|
| 官方網域 | liminary.io | opencrab.sh |
| 定價模式 | 免費增值 | 免費增值 |
| 每月造訪次數 | 1.22萬 (12,246) | 0 (0) |
| 月流量變化量 | -5342 (-30.4%) | -1888 (-100%) |
| 主要市場與市佔 | 🇺🇸 美國 (59.1%) | 🌐 全球 (—) |
| 每月直接造訪 | 4874 | 0 |
| 使用者評分 | 4.1 | 4.1 |
| 支援平台 | 網站 | 網站 |

在你需要時主動浮現記憶的 AI 知識層
瀏覽時擷取網頁、PDF、影片、報告與大型語言模型對話,並可加入自己的筆記與背景。
無需等你搜尋,Liminary 在你寫作與開會時主動浮現相關的已儲存材料。
在適當時機拉入正確資訊的會議夥伴,事後儲存摘要、完整逐字稿與你的筆記以備後續召回。
每個回答都指明來源,無論內部或外部,讓你核實說法而不是信任黑箱。

OpenCrab is an ontology-centered Graph RAG platform that turns documents, URLs and notes into reusable knowledge packs you can query from any AI client over MCP.
Upload documents, URLs, notes or code and let the platform handle parsing, OCR and chunking automatically.
Extract entities, concepts, evidence, relationships and claims into a graph where every node traces back to a source.
Bundle a graph into a versioned, reusable pack you can share with your team or sell in the marketplace.
One MCP server lets Claude, ChatGPT, Cursor, Codex and other clients query the same graph.

Studocu is a global study platform where students share and access lecture notes, summaries, study guides and past exams, with an AI assistant, quizzes, flashcards and note tools to help them learn faster.
專項更強用視覺化論文圖譜探索學術文獻
Paper Digest is an AI research platform that summarizes literature, generates literature reviews with citations, and delivers daily digests of new papers across arXiv, PubMed, bioRxiv and major conferences. Launched in 2018 and used by millions of researchers, it combines a citation-backed review engine that avoids inventing results with tools for reading PDFs, writing, question answering, claim verification and topic tracking.
Paper Digest is an AI research platform that summarizes literature, generates literature reviews with citations, and delivers daily digests of new papers across arXiv, PubMed, bioRxiv and major conferences. Launched in 2018 and used by millions of researchers, it combines a citation-backed review engine that avoids inventing results with tools for reading PDFs, writing, question answering, claim verification and topic tracking.