Use Native V8 with your AI.
Connect your account once and let the AI you already use work with it, without building another integration. Deterministically calculate True Positives, FP, Precision, Recall, F1-Score, and Accuracy local. Stop LLM hallucinations when evaluating model metrics.
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.
Complete set · 1 capability
The complete Native V8 capability set.
These are the exact actions your AI can choose when you ask it to work with Native V8.
01
1 capability in this set.
Part of 1 available through Native V8.
- 01
Calculate confusion matrix
Provide arrays of labels. Calculates exact confusion matrix and accuracy from actual and predicted arrays
Observed, not estimated
890ms average. Fast in production.
Native V8 is checked daily against the live service.
- Fastest day
- 642ms
- Slowest day
- 1279ms
- 14-day trend
- Slowing+17%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 1 capability arrives 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 Native V8, so you can see the experience inside your AI.
It does not authenticate your account with Native V8. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Native V8 Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_lcKPfQMdEs9vOL0QvMD7tp5xcmCCFVUKYwiOuwlI/mcpClaude 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 — Native V8 capabilities are ready to use.
{
"mcpServers": {
"confusion-matrix-engine-mcp": {
"url": "https://edge.vinkius.com/vk_preview_lcKPfQMdEs9vOL0QvMD7tp5xcmCCFVUKYwiOuwlI/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
FAQ
Questions Native V8 owners ask.
- 01
Why not let Claude/GPT calculate the accuracy?
LLMs operate on tokens and probability distributions. If you give them 500 predictions, they might summarize or estimate the F1-score rather than calculating it exactly. This engine ensures 100% mathematical precision.
- 02
Does it support multi-class classification?
Yes, the engine automatically detects unique labels from both arrays and constructs an N-by-N confusion matrix, handling both binary and multiclass evaluations flawlessly.
- 03
Is there a limit to the array size?
The only limit is the standard Context Window limit for transmitting the JSON arrays. For arrays exceeding 100k items, consider chunking or local CSV aggregators.
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