curl --request POST \
     --url https://yoursite.com/mcp/my-server \
     --header 'content-type: application/json' \
     --header 'Mcp-Session-Id: your_session_id' \
     --data '
{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "prompts/get",
  "params": {
    "name": "write_product_description",
    "arguments": {
      "product_name": "Widget Pro",
      "key_features": "durable, lightweight, waterproof",
      "tone": "professional"
    }
  }
}
'

import requests
response = requests.post(
    "https://yoursite.com/mcp/my-server",
    headers={"Content-Type": "application/json"},
    json={
        "jsonrpc": "2.0",
        "id": 2,
        "method": "prompts/get",
        "params": {
            "name": "write_product_description",
            "arguments": {
                "product_name": "Widget Pro",
                "key_features": "durable, lightweight, waterproof",
                "tone": "professional"
            }
        }
    }
)
print(response.json())

const response = await fetch(
  "https://yoursite.com/mcp/my-server",
  {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({
      jsonrpc: "2.0",
      id: 2,
      method: "prompts/get",
      params: {
        name: "write_product_description",
        arguments: {
          product_name: "Widget Pro",
          key_features: "durable, lightweight, waterproof",
          tone: "professional"
        }
      }
    })
  }
);
const data = await response.json();

{
  "jsonrpc": "2.0",
  "id": 2,
  "result": {
    "description": "Generate a compelling product description given product details",
    "messages": [
      {
        "role": "user",
        "content": {
          "type": "text",
          "text": "You are a product copywriter. Write a compelling product description for:\n\n**Product**: Widget Pro\n\n**Key Features**:\ndurable, lightweight, waterproof\n\n**Tone**: professional\n\nGuidelines:\n- Keep it under 150 words\n- Highlight the most important feature first\n- End with a clear call to action\n- Use professional language throughout"
        }
      }
    ]
  }
}

{
  "jsonrpc": "2.0",
  "id": 2,
  "error": {
    "code": -32602,
    "message": "Prompt not found: unknown_prompt"
  }
}

{
  "jsonrpc": "2.0",
  "id": 2,
  "error": {
    "code": -32602,
    "message": "Missing required argument: product_name"
  }
}