# AI tools for “Engineering knowledge graph”

407 matching tools; showing 24, ranked by relevance.

Related categories: [ai-knowledge-graph](https://openaitools.app/category/ai-knowledge-graph.md), [graph-ai](https://openaitools.app/category/graph-ai.md)

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Why it matched | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Lettria](https://openaitools.app/tool/lettria) | 5,327 | -12.8% | Contact for Pricing | Graph context layer that turns unstructured enterprise knowledge into traceable AI answers | category: ai-knowledge-graph; keywords 100%; semantic match | [.md](https://openaitools.app/tool/lettria.md) |
| 2 | [HydraDB OSS](https://openaitools.app/tool/hydradb-oss) | 29,635 | +5.8% | Freemium, Contact for Pricing | Graph database built on object storage for agent memory and context | category: ai-knowledge-graph, graph-ai; keywords 100%; semantic match | [.md](https://openaitools.app/tool/hydradb-oss.md) |
| 3 | [Connected Papers](https://openaitools.app/tool/connected-papers) | 750,576 | +3.1% | Freemium | Explore the academic literature as a visual graph of related papers | category: ai-knowledge-graph; keywords 69%; semantic match | [.md](https://openaitools.app/tool/connected-papers.md) |
| 4 | [Open Knowledge Maps](https://openaitools.app/tool/openknowledgemaps-org) | 83,432 | -2.4% | Free | AI-powered visual discovery of scientific knowledge | category: ai-knowledge-graph; keywords 69%; semantic match | [.md](https://openaitools.app/tool/openknowledgemaps-org.md) |
| 5 | [Writer](https://openaitools.app/tool/writer) | 180,869 | -17.6% | Free Trial, Paid, Contact for Pricing | Enterprise AI that turns market signals into growth | category: ai-knowledge-graph; keywords 69%; semantic match | [.md](https://openaitools.app/tool/writer.md) |
| 6 | [InfraNodus](https://openaitools.app/tool/infranodus) | 62,927 | -9.9% | Freemium, Free Trial | AI text analysis with knowledge graphs to reveal topics and content gaps | category: ai-knowledge-graph; keywords 69%; semantic match | [.md](https://openaitools.app/tool/infranodus.md) |
| 7 | [GitNexus (Akon Labs)](https://openaitools.app/tool/gitnexus-akon-labs) | 5,573 | -52.5% | Freemium, Paid, Contact for Pricing | A codebase knowledge graph that gives AI coding agents real structural awareness | category: ai-knowledge-graph; keywords 69%; semantic match | [.md](https://openaitools.app/tool/gitnexus-akon-labs.md) |
| 8 | [AI Graph Maker](https://openaitools.app/tool/ai-graph-maker) | 38,331 | +26.7% | Freemium | Turn text or data into interactive charts and diagrams with AI | category: ai-knowledge-graph, graph-ai; keywords 69%; semantic match | [.md](https://openaitools.app/tool/ai-graph-maker.md) |
| 9 | [Adaptiv.Me](https://openaitools.app/tool/adaptiv-me) | 2,279 | -29.4% | Contact for Pricing | Independent AI product studio building context-aware AI for education, culture and finance | category: ai-knowledge-graph; keywords 100%; semantic match | [.md](https://openaitools.app/tool/adaptiv-me.md) |
| 10 | [Polygres](https://openaitools.app/tool/polygres) | 4,018 | -52.3% | Freemium | Graph, vector and text retrieval for AI agents on your Postgres | category: ai-knowledge-graph; keywords 69%; semantic match | [.md](https://openaitools.app/tool/polygres.md) |
| 11 | [Recall](https://openaitools.app/tool/active-recall) | 25,950 | -31.9% | Freemium, Contact for Pricing | Your AI knowledge base that remembers everything you save | category: ai-knowledge-graph; keywords 69%; semantic match | [.md](https://openaitools.app/tool/active-recall.md) |
| 12 | [Perplexity](https://openaitools.app/tool/perplexity-ai) | 88,310,223 | -3.7% | Freemium | Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models. | semantic match | [.md](https://openaitools.app/tool/perplexity-ai.md) |
| 13 | [ConceptMap AI](https://openaitools.app/tool/conceptmap-ai) | 33,063 | -30.9% | Freemium | Turn PDFs, lecture notes and long chats into presentable concept maps | category: ai-knowledge-graph; keywords 69%; semantic match | [.md](https://openaitools.app/tool/conceptmap-ai.md) |
| 14 | [WolframAlpha](https://openaitools.app/tool/wolframalpha) | 3,101,089 | +5.6% | Freemium | Computational knowledge engine for expert answers | semantic match | [.md](https://openaitools.app/tool/wolframalpha.md) |
| 15 | [Dawiso](https://openaitools.app/tool/dawiso) | 16,820 | -17.5% | Contact for Pricing | Data catalog and AI context layer that keeps enterprise data trustworthy | category: ai-knowledge-graph; keywords 69%; semantic match | [.md](https://openaitools.app/tool/dawiso.md) |
| 16 | [BeFreed](https://openaitools.app/tool/befreed) | 285,675 | -17.5% | Freemium | Turn books and any topic into personalized audio lessons | category: ai-knowledge-graph; keywords 69% | [.md](https://openaitools.app/tool/befreed.md) |
| 17 | [Slashspace AI](https://openaitools.app/tool/slashspace-ai) | 1,063 | -65% | Freemium, Free Trial, Paid, Free | Branching AI canvas for ChatGPT, Claude and Gemini | category: ai-knowledge-graph; keywords 69%; semantic match | [.md](https://openaitools.app/tool/slashspace-ai.md) |
| 18 | [DeepLearning.AI](https://openaitools.app/tool/deeplearning-ai) | 2,562,512 | -7.2% | Freemium | AI engineering courses, certificates, and the world's biggest AI newsletter | semantic match | [.md](https://openaitools.app/tool/deeplearning-ai.md) |
| 19 | [EzInsights AI](https://openaitools.app/tool/ezinsights-ai) | 2,542 | +31% | Free Trial, Contact for Pricing | An enterprise AI platform that grounds data, code and business answers in your own knowledge graph | keywords 100%; semantic match | [.md](https://openaitools.app/tool/ezinsights-ai.md) |
| 20 | [supermemory](https://openaitools.app/tool/supermemory-1) | 156,579 | -7.7% | Contact for Pricing | A memory and continual-learning engine that gives any AI agent persistent context | keywords 69%; semantic match | [.md](https://openaitools.app/tool/supermemory-1.md) |
| 21 | [ChatBees.AI](https://openaitools.app/tool/chatbees-ai) | 2,548 | -41.2% | Freemium, Free Trial, Paid, Contact for Pricing | Resolve support tickets faster with knowledge graphs built from your own ticket history | category: ai-knowledge-graph; keywords 69%; semantic match | [.md](https://openaitools.app/tool/chatbees-ai.md) |
| 22 | [Docugami](https://openaitools.app/tool/docugami) | 7,680 | +10% | Free Trial, Paid, Contact for Pricing | Turn business documents into knowledge graphs that drive real action | keywords 100%; semantic match | [.md](https://openaitools.app/tool/docugami.md) |
| 23 | [Glean](https://openaitools.app/tool/glean) | 3,301,875 | +0.1% | Contact for Pricing | Enterprise AI grounded in your company's own knowledge | semantic match | [.md](https://openaitools.app/tool/glean.md) |
| 24 | [MathGPT](https://openaitools.app/tool/mathgpt-ai-math-solver-animator) | 2,254,286 | +10.3% | Freemium | AI math solver that explains every step and animates the solution | category: graph-ai | [.md](https://openaitools.app/tool/mathgpt-ai-math-solver-animator.md) |

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