# Llm Requirements Calculator — REST API endpoint `llm-requirements-calculator`

Estimate the VRAM, system RAM, and disk space needed to run an open-weight LLM locally, and which common GPUs and Macs it fits on. Covers Llama, Mistral, Qwen, DeepSeek, Gemma, Phi, Code Llama, Command R, Yi, SmolLM, StableLM, Grok, Falcon, and MiniCPM across FP32 through Q2_K quantization.

- Category: calculators
- MCP server: https://mcp.findutils.com/ (Streamable HTTP, no API keys, 120 req/min per IP)
- REST endpoint: POST https://api.findutils.com/api/tools/llm-requirements-calculator/execute (no API keys, 60 req/min per IP)
- Reference page: https://findutils.com/api/llm-requirements-calculator/
- Same tool on the other surface: https://findutils.com/mcp/llm-requirements-calculator/

## Call the endpoint (verified example)

```bash
curl -X POST https://api.findutils.com/api/tools/llm-requirements-calculator/execute \
  -H "Content-Type: application/json" \
  -d '{
    "model": "llama-3.1-8b",
    "quantization": "q4_k_m",
    "context_length": 8192
  }'

# Parameter schema
curl https://api.findutils.com/api/tools/llm-requirements-calculator
```

## Input schema

| Argument | Type | Required | Description |
|---|---|---|---|
| `model` | string (llama-3.2-1b \| llama-3.2-3b \| llama-3.1-8b \| llama-3.1-70b \| llama-3.1-405b \| mistral-7b \| mistral-nemo \| mixtral-8x7b \| mixtral-8x22b \| mistral-small-3 \| qwen-2.5-0.5b \| qwen-2.5-1.5b \| qwen-2.5-3b \| qwen-2.5-7b \| qwen-2.5-14b \| qwen-2.5-32b \| qwen-2.5-72b \| qwen-2.5-coder-7b \| qwen-2.5-coder-32b \| qwen-qwq-32b \| deepseek-r1-distill-7b \| deepseek-r1-distill-14b \| deepseek-r1-distill-32b \| deepseek-r1-distill-70b \| deepseek-v3 \| deepseek-r1 \| gemma-2-2b \| gemma-2-9b \| gemma-2-27b \| phi-3-mini \| phi-3-medium \| phi-4 \| codellama-7b \| codellama-13b \| codellama-34b \| codellama-70b \| qwen-3-0.6b \| qwen-3-1.7b \| qwen-3-4b \| qwen-3-8b \| qwen-3-14b \| qwen-3-32b \| qwen-3-235b \| command-r-35b \| command-r-plus \| yi-1.5-6b \| yi-1.5-9b \| yi-1.5-34b \| smollm-2-135m \| smollm-2-360m \| smollm-2-1.7b \| stablelm-2-1.6b \| stablelm-2-12b \| grok-1 \| falcon-3-1b \| falcon-3-3b \| falcon-3-7b \| falcon-3-10b \| minicpm-3-4b) | yes | Model id (or exact display name). One of: llama-3.2-1b, llama-3.2-3b, llama-3.1-8b, llama-3.1-70b, llama-3.1-405b, mistral-7b, mistral-nemo, mixtral-8x7b, mixtral-8x22b, mistral-small-3, qwen-2.5-0.5b, qwen-2.5-1.5b, qwen-2.5-3b, qwen-2.5-7b, qwen-2.5-14b, qwen-2.5-32b, qwen-2.5-72b, qwen-2.5-coder-7b, qwen-2.5-coder-32b, qwen-qwq-32b, deepseek-r1-distill-7b, deepseek-r1-distill-14b, deepseek-r1-distill-32b, deepseek-r1-distill-70b, deepseek-v3, deepseek-r1, gemma-2-2b, gemma-2-9b, gemma-2-27b, phi-3-mini, phi-3-medium, phi-4, codellama-7b, codellama-13b, codellama-34b, codellama-70b, qwen-3-0.6b, qwen-3-1.7b, qwen-3-4b, qwen-3-8b, qwen-3-14b, qwen-3-32b, qwen-3-235b, command-r-35b, command-r-plus, yi-1.5-6b, yi-1.5-9b, yi-1.5-34b, smollm-2-135m, smollm-2-360m, smollm-2-1.7b, stablelm-2-1.6b, stablelm-2-12b, grok-1, falcon-3-1b, falcon-3-3b, falcon-3-7b, falcon-3-10b, minicpm-3-4b. |
| `quantization` | string (fp32 \| fp16 \| q8_0 \| q6_k \| q5_k_m \| q4_k_m \| q3_k_m \| q2_k) | no | Quantization id. Default: "q4_k_m". Default: `"q4_k_m"`. |
| `context_length` | integer | no | Context window in tokens (512-131072). Default: 8192. Default: `8192`. |
| `batch_size` | integer | no | Concurrent sequences (1-64). Default: 1. Default: `1`. |

Example arguments (verified):

```json
{
  "model": "llama-3.1-8b",
  "quantization": "q4_k_m",
  "context_length": 8192
}
```

OpenAPI 3.1 spec: https://findutils.com/api/openapi.json · Interactive docs: https://findutils.com/api/docs/

## Also an MCP tool

```bash
claude mcp add findutils --transport http https://mcp.findutils.com/
```

Then ask the client to call `findutils:llm_requirements_calculator`. Full MCP reference: https://findutils.com/mcp/llm-requirements-calculator/

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Full catalog: GET https://api.findutils.com/api/tools · https://findutils.com/api/ · https://findutils.com/llms.txt