QAmcp

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Directory / Cheap GPUs

Cheap GPUs

Q: Is Cheap GPUs MCP server safe?

QAmcp's test on 3 Nov 2026: None of the hidden-instruction wordings we know were found in its 7 tool descriptions. Its error messages showed no secrets or internal details. All 7 of its tools are labeled read-only. Overall it scored 93/100 on 3 Nov 2026. A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

by cheap-gpus.com · https://cheap-gpus.com/mcp

Live GPU rental and LLM inference prices across dozens of providers, plus GPU price forecasts.

7 tools✓ all read-only✓ no account neededPricing: not listed

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93 /100

PASS · WITH NOTES

11 of 11 checks · 3 Nov 2026

Test it now for current results

At a glance

Runs where: On their server. What you send to it goes to them.
What you need: Nothing: it answered without a login
Tools: 7 tools
Its own safety labels: 7 read-only
Memory it takes: About 1,200 tokens of your AI's memory, just for its tool descriptions
Largest answer: About 8 KB in our test
Speed: Average answer in our test: 171 ms

Tokens are an estimate: the characters in its tool names, descriptions and inputs, divided by 4. The exact number depends on your AI model. Safety labels are what the server says about itself. From our latest test, 3 Nov 2026.

Is Cheap GPUs MCP server safe?

None of the hidden-instruction wordings we know were found in its 7 tool descriptions.
Its error messages showed no secrets or internal details.
All 7 of its tools are labeled read-only.
Overall it scored 93/100 on 3 Nov 2026.

A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

What this test does not check

Its source code and packages.
What a tool quietly does behind the scenes, such as writing a file or calling another service.
Instructions hidden inside live tool answers. We only look for those in tool descriptions.
Hidden instructions worded in a way our list doesn't know yet.
Tools that could change something. Those are read, never run.

What QAmcp can and can't see · How to tell if an MCP server is safe · Hidden instructions · Prompt injection

Known security advisories

It lists no public code, so there is nothing to look up in GitHub Security Advisories or OSV.dev. QAmcp tests how a server behaves. It does not scan source code.

What it can do

7 tools, in the server's own words.

list_gpu_familiesread-only

List every GPU family tracked on cheap-gpus.com, with VRAM, live cheapest on-demand price (USD per GPU-hour), and how many providers currently offer it.

cheapest_gpuread-only

Cheapest current rental offers for one GPU family (e.g.

gpu_price_historyread-only

Daily price history for one GPU family: each day's median across providers of each provider's cheapest offer (USD per GPU-hour).

find_modelread-only

Search the LLM catalog by name (e.g.

cheapest_model_routeread-only

Cheapest inference providers for one LLM (e.g.

gpu_price_forecastread-only

Market-implied future rental price for one GPU family (USD per GPU-hour), from prediction markets (Kalshi, Polymarket) and ICE futures, plus today's compute-in…

gpus_needed_for_modelread-only

How many GPUs it takes to self-host an open-weight LLM at a given quantization, and the cheapest rental setups for it right now.

Test results

Safe mode: only tools labeled read-only were run. How the test works

!
Every tool is described
6 warnings
- !cheapest_gpu: Inputs with no description: gpu, pricing_type, limit
- !gpu_price_history: Inputs with no description: gpu, days, pricing_type
- !find_model: Inputs with no description: query, limit
- !cheapest_model_route: Inputs with no description: model, input_tokens, output_tokens, limit
- !gpu_price_forecast: Inputs with no description: gpu
- !gpus_needed_for_model: Inputs with no description: model, quant, limit
note
✓
ConnectsConnected in 379 ms
pass
✓
Ready for the newest MCP versionUses the latest MCP version (2026-07-28)
pass
✓
Lists its toolsFound 7 tools
pass
✓
Tools are labeled safe or dangerousEvery tool has a safety label
pass
✓
No known hidden instructionsNone of the hidden-instruction wordings we know were found in tool descriptions. New wordings can get past this check.
pass
✓
Tools work with good inputs
All good
- ✓list_gpu_families: Worked (194 ms)
- ✓cheapest_gpu: Answered with an error, probably because of our sample input: Error executing tool cheapest_gpu: Unknown GPU family 'test'. Known families: H200, H100, B300, B200, A100, RTX PRO 6000, RTX PRO 5000, RTX…
- ✓gpu_price_history: Answered with an error, probably because of our sample input: Error executing tool gpu_price_history: Unknown GPU family 'test'. Known families: H200, H100, B300, B200, A100, RTX PRO 6000, RTX PRO 5000…
- ✓find_model: Worked (133 ms)
- ✓cheapest_model_route: Answered with an error, probably because of our sample input: Error executing tool cheapest_model_route: Unknown model 'test'. Use find_model to search for the right name.
- ✓gpu_price_forecast: Answered with an error, probably because of our sample input: Error executing tool gpu_price_forecast: Unknown GPU family 'test'. Known families: H200, H100, B300, B200, A100, RTX PRO 6000, RTX PRO 500…
- ✓gpus_needed_for_model: Answered with an error, probably because of our sample input: Error executing tool gpus_needed_for_model: Unknown model 'test'. Use find_model to search for the right name.
pass
✓
Bad inputs give a clean error
All good
- ✓cheapest_gpu: Refused missing required input "gpu" with a clear error
- ✓cheapest_gpu: Refused wrong type for "gpu" with a clear error
- ✓gpu_price_history: Refused missing required input "gpu" with a clear error
- ✓gpu_price_history: Refused wrong type for "gpu" with a clear error
- ✓find_model: Refused missing required input "query" with a clear error
- ✓find_model: Refused wrong type for "query" with a clear error
- ✓cheapest_model_route: Refused missing required input "model" with a clear error
- ✓cheapest_model_route: Refused wrong type for "model" with a clear error
- and 4 more
pass
✓
Fast enough
All good
- ✓Connecting took 379 ms
- ✓Listing tools took 156 ms
- ✓Average tool answer: 171 ms
- ✓gpu_price_history: Slowest tool: gpu_price_history (225 ms)
pass
✓
No secrets leakedChecked 17 error messages: no secrets or internal details
pass
✓
Follows MCP best practices (not scored yet)Tool names, safety labels and tool list size follow the MCP guide
pass
–
Tools work togetherNo tool's answer could be fed into another tool, so there were no chains to test (not counted either way)
not tested

Test it yourself

Free and open source. Same checks, same score.

npx qamcp-cli https://cheap-gpus.com/mcp

Show this score on GitHub

Free for every server in the directory. Paste this into your README: the badge shows the score from our latest test.

[![QAmcp score](https://qamcp.dev/s/com-cheap-gpus-cheap-gpus.svg)](https://qamcp.dev/s/com-cheap-gpus-cheap-gpus.html)

Score over time

3 Nov 202693

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use Cheap GPUs, signed in with GitHub, one per person. Reviews never change the score.

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