MarvinLabs vram_fit

MCP server · hosted · v0.1.0 · org.marvinlabs/vram-fit

Online · tested 2h agoNEW · 3h agoSeen in the registry 2h ago

Will a QLoRA fine-tune of gemma-3-4b-it fit your GPU? Verdicts from measured AMD and NVIDIA probes.

What it does

MarvinLabs vram_fit is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.

No capability identified yet from its description.

Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.

At a glance

Hosted (remote)YES

Local installNO

Live checkOnline · 3 tools

Version0.1.0

PriceNot in the registry

First seen25 Oct 2026

Last checked2h ago

How to connect

As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 2h ago (live check)

Hosted endpoint

https://marvinlabs.org/mcp streamable-http

In Claude Code: claude mcp add --transport http marvinlabs-vram-fit https://marvinlabs.org/mcp

MCP settings (Claude Desktop, Cursor and other MCP clients)

{
  "mcpServers": {
    "marvinlabs-vram-fit": {
      "url": "https://marvinlabs.org/mcp"
    }
  }
}

Live check

Electra Index connected to the hosted endpoint 2h ago

ONLINE MarvinLabs vram_fit answered an MCP connection on 25 Oct 2026 and introduced itself as vram_fit 0.1.0 (MCP protocol 2025-06-18).

3 tools offered to AI assistants

vram_fit · Will this LoRA config train on a card with vram_gb GB? Returns verdict fits / tight / does_not_fit, the predicted peak in MB, the margin, how each part was derived, and any measured probe with the same settings.
vram_max_rank · Largest LoRA rank (multiple of 8) that fits with margin on a card with vram_gb GB, and the largest that is tight (a real run may fit, the one-step probe would not).
vram_probes · The raw measured probe rows (RX 7900 XTX and RTX 3060 Ti), filtered by any of the given settings. gpu matches part of the card name, e.g. '7900' or '3060'.

What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method

Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.

Facts & evidence

Each fact shows where it was seen and when.

Fact	Value	Evidence	Source	Last confirmed
Hosted endpoint	https://marvinlabs.org/mcp	DECLARED	SRC-001 Official MCP Registry	2h ago
Local install (package)	no	DECLARED	SRC-001 Official MCP Registry	2h ago
Remote access (hosted)	yes	DECLARED	SRC-001 Official MCP Registry	2h ago
Website	https://marvinlabs.org/vram	DECLARED	SRC-001 Official MCP Registry	2h ago
Registry status	active	DECLARED	SRC-001 Official MCP Registry	2h ago
Version	0.1.0	DECLARED	SRC-001 Official MCP Registry	2h ago
MCP server	yes	DECLARED	SRC-001 Official MCP Registry	2h ago

Change history

NEW25 Oct 2026
first seen in the index

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Questions about MarvinLabs vram_fit

How do I connect MarvinLabs vram_fit?

Use the hosted endpoint https://marvinlabs.org/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.

What tools does MarvinLabs vram_fit offer?

When Electra Index connected on 25 Oct 2026, it listed 3 tools: vram_fit, vram_max_rank, vram_probes. The full list is in "Live check" above.

Is MarvinLabs vram_fit online?

Yes. Its hosted endpoint answered an MCP connection from Electra Index 2h ago.