How do I connect my Nyckel account?

You subscribe to the MCP on Vinkius and enter your Nyckel Client ID and Client Secret. Once connected, the capabilities are immediately available in your AI client.

Which AI clients can use this MCP?

This MCP works with any compatible client, including Claude, Cursor, and Windsurf.

Can I train my models using this MCP?

Yes. You can use the create_ml_sample and annotate_ml_sample capabilities to add new data and assign labels to improve your models.

Does this work with images?

Yes. You can send image URLs to your functions for classification or use semantic search to find similar images.

Do I need to write code to use my ML functions?

No. The MCP exposes your functions as capabilities, allowing you to trigger them using natural language through your AI agent.

How do I get my Nyckel credentials?

Log in to your Nyckel dashboard, navigate to your profile or settings, and look for the 'API Keys' section to find your Client ID and Client Secret.

Does this support image classification?

Yes! You can pass a publicly accessible image URL to the invoke_ml_function or semantic_search capabilities to classify or search based on visual content.

How accurate are the predictions?

Accuracy depends on the quality and quantity of training samples provided to your Nyckel function. The invoke_ml_function capability returns a confidence score for each prediction.

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Connect Nyckel ML to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Run classification and semantic searches through natural conversation.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 10 capabilities

We ship only the actions that matter.

Capability set01 / 03

01-04

4 capabilities in this set.

Part of 10 available through Nyckel.

01
Create ml sample
This capability adds a new training sample to your Nyckel account. Use it to feed more data into your models for better accuracy.
02
Get account info
This capability pulls profile and workspace metadata for your authenticated Nyckel account. Use it to verify your connection and account status.
03
List ml functions
This capability returns a list of all ML functions in your account. It helps your agent identify which models are available to use.
04
List ml labels
This capability retrieves all available labels and categories defined in your models. Use it to see what classifications are possible.

Capability set02 / 03

05-07

3 capabilities in this set.

Part of 10 available through Nyckel.

05
Semantic search
This capability performs a semantic search within your function galleries. It finds data points that are conceptually similar to your input.
06
Annotate ml sample
This capability assigns or updates a label for a specific sample. Use it to manually correct or refine your training data.
07
List ml samples
This capability fetches the training samples currently stored in your account. Use it to audit the data used for training.

Capability set03 / 03

08-10

3 capabilities in this set.

Part of 10 available through Nyckel.

08
Delete ml function
This capability removes an ML function from your account. Use it to clean up old or unused models.
09
Get ml function
This capability retrieves specific configuration and metadata for a single ML function. It's how your agent checks the settings of a model.
10
Invoke ml function
This capability runs a trained function on new data. It's how your agent performs real-time classification on text or images.

Real work

What teams actually run

Sentiment Analysis

An agent classifies incoming customer feedback using a sentiment function to flag unhappy users.

Visual Product Search

A user provides an image URL to find similar products in a large catalog via semantic search.

Content Moderation

An agent automatically labels user-uploaded content to identify spam or inappropriate material.

Model Debugging

A developer inspects training samples and labels to understand why a model is misclassifying data.

Automate a task

Put Nyckel to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Nyckel works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put Nyckel to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

882ms average. Fast in production.

Nyckel is checked daily against the live service.

Daily averagePeak 1081ms

Oct 3Today

Fastest day: 729ms
Slowest day: 1081ms
14-day trend: Stable0%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 10 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Nyckel, so you can see the experience inside your AI.

It does not authenticate your account with Nyckel. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Nyckel Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_XHJXGFWpxs8iH5SOEbAtipKgPVXhxGte0LRcKzdL/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — Nyckel capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "nyckel-ml-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_XHJXGFWpxs8iH5SOEbAtipKgPVXhxGte0LRcKzdL/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Nyckel in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Nyckel owners hand off.

This MCP is built for technical users who need to bridge the gap between machine learning models and agentic workflows.

01
AI Developers
They use the MCP to test classification models and search galleries without writing custom integration code.
02
Data Scientists
They use it to monitor training samples and check prediction accuracy directly from their workspace.
03
Content Moderators
They use it to automate the classification of user-generated content using custom models.

FAQ

Questions Nyckel owners ask.

01
How do I connect my Nyckel account?
You subscribe to the MCP on Vinkius and enter your Nyckel Client ID and Client Secret. Once connected, the capabilities are immediately available in your AI client.
02
Which AI clients can use this MCP?
This MCP works with any compatible client, including Claude, Cursor, and Windsurf.
03
Can I train my models using this MCP?
Yes. You can use the create_ml_sample and annotate_ml_sample capabilities to add new data and assign labels to improve your models.
04
Does this work with images?
Yes. You can send image URLs to your functions for classification or use semantic search to find similar images.
05
Do I need to write code to use my ML functions?
No. The MCP exposes your functions as capabilities, allowing you to trigger them using natural language through your AI agent.
06
How do I get my Nyckel credentials?
Log in to your Nyckel dashboard, navigate to your profile or settings, and look for the 'API Keys' section to find your Client ID and Client Secret.
07
Does this support image classification?
Yes! You can pass a publicly accessible image URL to the invoke_ml_function or semantic_search capabilities to classify or search based on visual content.
08
How accurate are the predictions?
Accuracy depends on the quality and quantity of training samples provided to your Nyckel function. The invoke_ml_function capability returns a confidence score for each prediction.

Explore

More in Developer Tools

Connect Nyckel to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-04

Create ml sample

Get account info

List ml functions

List ml labels

05-07

Semantic search

Annotate ml sample

List ml samples

08-10

Delete ml function

Get ml function

Invoke ml function

What teams actually run

Sentiment Analysis

Visual Product Search

Content Moderation

Model Debugging

Building your own app? The connector is yours to use.

Nyckel Connector

Claude Desktop

AI Developers

Data Scientists

Content Moderators

How do I connect my Nyckel account?

Which AI clients can use this MCP?

Can I train my models using this MCP?

Does this work with images?

Do I need to write code to use my ML functions?

How do I get my Nyckel credentials?

Does this support image classification?

How accurate are the predictions?

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