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

Developer Tools on MCP Nexus: AI Cost Pulse, Char Index, Cloud Diagrams, CloudWright, Data Model Docs, DepWire — run locally, data stays in your netw…

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Start free — 200 Nex/month

Skills in this bundle

1/6

AI Cost Pulse

Compare costs and get model recommendations across 29 AI APIs covering text, image, video, and audio tasks.

Skill5 Nex

2/6

Char Index

Find, extract, replace, and insert text by exact character position — eliminates LLM position-drift errors.

Skill10 Nex

3/6

Cloud Diagrams

Generate cloud architecture diagrams, flowcharts, and sequence diagrams from code or plain text.

Skill5 Nex

4/6

CloudWright

Natural-language cloud architecture design, cost estimation, compliance validation (HIPAA/SOC2/FedRAMP/GDPR/PCI-DSS), security scanning, and Terraform/CloudFormation export for AWS, GCP, Azure, and Databricks.

Skill10 Nex

5/6

SQL ERD Generator

Deterministic SQL DDL -> entities/fields/FK relationships + ER diagram. 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.)

Skill5 Nex

6/6

Dependency Auditor

Audit package.json/requirements for risky/unpinned/deprecated dependencies. (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.)

Skill3 Nex

See it in action

Download demo video (MP4)

Quick answer

Developer Tools on MCP Nexus: AI Cost Pulse, Char Index, Cloud Diagrams, CloudWright, Data Model Docs, DepWire — run locally, data stays in your netw… MCP Nexus orchestrates 6 skills (AI Cost Pulse, Char Index, Cloud Diagrams, CloudWright and more) into one reproducible workflow that runs on your machine, keeps data in your network, and delivers results in minutes.

AI Cost Pulse: Compare costs and get model recommendations across 29 AI AP…
Char Index: Find, extract, replace, and insert text by exact character…
Cloud Diagrams: Generate cloud architecture diagrams, flowcharts, and seque…
CloudWright: Natural-language cloud architecture design, cost estimation…
Data Model Docs: Query dbt-core project metadata, model lineage, column-leve…
DepWire: Parse multi-language codebases into dependency graphs with…

What is Developer Tools with MCP Nexus

Developer Tools chains 6 skills (AI Cost Pulse, Char Index, Cloud Diagrams, CloudWright, Data Model Docs, DepWire) 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: AI Cost Pulse, Char… on demand.

How it works

1Step 1

AI Cost Pulse

Compare costs and get model recommendations across 29 AI APIs covering text, image, video, and audi…

2Step 2

Char Index

Find, extract, replace, and insert text by exact character position — eliminates LLM position-drift…

3Step 3

Cloud Diagrams

Generate cloud architecture diagrams, flowcharts, and sequence diagrams from code or plain text.

4Step 4

CloudWright

Natural-language cloud architecture design, cost estimation, compliance validation (HIPAA/SOC2/FedR…

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

Related use cases

<>Engineering Quality & Review

◈How to analyze finance data in PDF files automatically

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