
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.
| 項目 / 指標 | ![]() | ![]() |
|---|---|---|
| 公式ドメイン | liminary.io | opencrab.sh |
| 料金モデル | フリーミアム | フリーミアム |
| 月間訪問数 | 1.22万 (12,246) | 0 (0) |
| 前月比トラフィック増減 | -5342 (-30.4%) | -1888 (-100%) |
| 主要市場とシェア | 🇺🇸 アメリカ合衆国 (59.1%) | 🌐 グローバル (—) |
| 月間ダイレクト訪問数 | 4874 | 0 |
| ユーザー評価 | 4.1 | 4.1 |
| 対応プラットフォーム | ウェブサイト | ウェブサイト |

必要なときに記憶を呼び戻す AI メモリーレイヤー
閲覧中にウェブページ、PDF、動画、レポート、LLM チャットを取り込み、自分のメモと文脈を追加できます。
検索を待たず、執筆中や会議中に保存済みの関連素材を先回りして提示します。
適切な瞬間に必要な情報を引き出す会議の相棒。要約、全文文字起こし、自分のメモを後から呼び出せる形で保存します。
内部・外部を問わず、すべての回答が出典を指し示すため、ブラックボックスを信じずに主張を検証できます。

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.
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.
特化型学術文献を関連グラフとして視覚的に探索

無料・オープンソースエージェント型パースと抽出で、あらゆる文書をAIが使えるコンテキストに

Scholarcy is an AI reading assistant that turns research papers, articles, book chapters, and textbook sections into interactive summary flashcards, surfacing key findings, concepts, and referenced works so you can screen and review literature faster.
Scholarcy is an AI reading assistant that turns research papers, articles, book chapters, and textbook sections into interactive summary flashcards, surfacing key findings, concepts, and referenced works so you can screen and review literature faster.
ファイルもノートも会議も 1 つのドライブへ——すべてを知る AI とともに。
ナレッジを自動で整理してくれるAIノートアプリ
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.