A marketplace of AI skills that actually run: 593 skills ship inside the Nexus Runner desktop app, reading your files, processing them, and producing charts and conclusions on your own machine. It executes, it doesn't just chat.

How is this different from Zapier or just asking a large model?

Zapier connects cloud apps through APIs; we work on the files on your machine. A model hands you prose; we hand you a table, a chart and a conclusion you can check. A skill is a program with an input contract, not a prompt.

No. Skills execute on your computer, source files never leave it, and output is written straight to your folder. Content is sent to the built-in model only when you use AI chat or a skill that needs a model.

What do I need to install?

Just Nexus Runner — the runtime ships with the app. No Python setup, no code.

How much is the free tier?

200 Nex per month on signup, reset at the start of each month, with every skill available and no tier gates. The four Runner tutorial skills are not billed.

How many runs does Pro at CNY 49 cover?

3,000 Nex per month. Skills bill per run and most cost 3-10 Nex, which works out to several hundred runs. Each skill's exact price is on its detail page.

Which Windows versions are supported?

64-bit Windows 10 and Windows 11. Windows is the only desktop client we ship.

How do I connect it to Claude Desktop or Cursor?

Nexus Runner speaks MCP: register it as an MCP server in your client and the skills show up as tools. The docs page walks through the setup step by step.

Where do skills come from? Can I build my own?

Skills are maintained by the platform and its creators, each with an input contract and sample data. You can also build your own in the Runner workbench — those stay yours, never published or encrypted.

Do you offer refunds?

Subscriptions can be refunded under our refund policy; the conditions and process are on the refund policy page. Nex already consumed is not refundable.

Developer Tools 2

Developer Tools on MCP Nexus: Diagram Render, Doc Finder, FileScope, Memory Keeper — run locally, data stays in your network.

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Start free — 200 Nex/month

Skills in this bundle

1/4

Diagram Smith

Turns 'source -> target: label' lines into a diagram: Mermaid, PlantUML (incl. sequence) or an editable Excalidraw file, with start/end/loop checks.

Skill3 Nex

2/4

Doc Finder

Pull the most relevant passages from a URL or local files and summarise them into an answer — no manual page-flipping. Use it to quickly locate key information across technical docs, reports or a document library.

Skill10 Nex

3/4

Repo Vitals

One-command composite repo audit: file scope + code quality + dependency graph + dependency hygiene + data models + project context -> unified repo health report. No LLM. (Action Co-pilot: generates next-best-actions (actions.json), follow-up tasks and calendar reminders on top of the analysis — what to act on today.)

Skill2 Nex

4/4

Memory Keeper

Store, search, and retrieve personal coding preferences and technical knowledge using Mem0 semantic memory.

Skill5 Nex

See it in action

Download demo video (MP4)

Quick answer

Developer Tools on MCP Nexus: Diagram Render, Doc Finder, FileScope, Memory Keeper — run locally, data stays in your network. MCP Nexus orchestrates 4 skills (Diagram Render, Doc Finder, FileScope, Memory Keeper) into one reproducible workflow that runs on your machine, keeps data in your network, and delivers results in minutes.

Diagram Render: Generate UML and architecture diagrams from PlantUML syntax…
Doc Finder: Pull the most relevant passages from a URL or local files a…
FileScope: Scans a codebase, builds a file dependency graph, scores ea…
Memory Keeper: Store, search, and retrieve personal coding preferences and…

What is Developer Tools 2 with MCP Nexus

Developer Tools 2 chains 4 skills (Diagram Render, Doc Finder, FileScope, Memory Keeper) into one reproducible workflow covering the key steps from input to result, running fully on-premises with data staying in your network, for teams that need Developer Tools on MCP Nexus: Diagram Render, Doc… on demand.

How it works

1Step 1

Diagram Render

Generate UML and architecture diagrams from PlantUML syntax text, with syntax validation and PNG/SV…

2Step 2

Doc Finder

Pull the most relevant passages from a URL or local files and summarise them into an answer — no ma…

3Step 3

FileScope

Scans a codebase, builds a file dependency graph, scores each file by importance (PageRank), and ge…

4Step 4

Memory Keeper

Store, search, and retrieve personal coding preferences and technical knowledge using Mem0 semantic…

MCP Nexus vs alternatives

	MCP Nexus	Manual / Excel	Generic AI / Cloud tools
Pricing	Free tier, metered by calls	Many manual hours	Per-seat plus per-volume fees
Local execution	Yes, data stays on-premises	Manual process	No, data leaves your network
Setup time	Minutes to first run	Days, experience-dependent	~1 week integration and training

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