{
  "title": "Gpa calculator",
  "human_url": "https://happytails.ai/en/education-tools/gpa-calculator/",
  "agent_url": "https://happytails.ai/agents/en/education-tools/gpa-calculator/",
  "language": "en",
  "markdown_url": "https://happytails.ai/en/education-tools/gpa-calculator.md",
  "content": "Gpa calculator\nCalculate a weighted GPA from grade points and course credits.\nHow to use Gpa calculator\nEnter your text in the input field.\nThe result updates as you type. Adjust the available settings if needed.\nReview the result, then use Copy result or a download link when available.\nWhat to expect\nCalculate a weighted GPA from grade points and course credits. Enter one numeric grade-point,credit pair per line. Convert letter grades using your institution’s scale first; this tool does not assume a letter-grade policy.\nUseful next steps\nGrade calculator\nCalculate a weighted average from scores and their weights.\nFinal grade\nFind the final-exam score needed to reach a target course grade.",
  "content_format": "text/plain",
  "visibility": "public",
  "links": [
    {
      "name": "Grade calculator Calculate a weighted average from scores and their weights.",
      "url": "https://happytails.ai/en/education-tools/grade-calculator/"
    },
    {
      "name": "Final grade Find the final-exam score needed to reach a target course grade.",
      "url": "https://happytails.ai/en/education-tools/final-grade/"
    }
  ],
  "tool": {
    "id": "gpa-calculator",
    "category": "education-tools",
    "built": true,
    "requirements": "User-selected grading system and credits; explicit conversion rules.",
    "implementation": {
      "fields": [],
      "note": "One score,weight pair per line. For GPA use numeric grade points and course credits.",
      "experience": {
        "automatic": true,
        "single": false,
        "label": "Grade points and credits",
        "placeholder": "3,3\n4,3",
        "help": "Add one numeric grade-point,credit pair per line. Convert letter grades using your institution’s scale first. Results update as you type. Up to 1,000,000 characters.",
        "action": null
      },
      "mode": "automatic",
      "interactive": false
    },
    "execution": "POST /api/v1/tools/gpa-calculator/run",
    "api": {
      "id": "gpa-calculator",
      "name": "Gpa calculator",
      "category": "education-tools",
      "description": "Calculate a weighted GPA from grade points and course credits.",
      "notes": "One score,weight pair per line. For GPA use numeric grade points and course credits.",
      "human_path": "/en/education-tools/gpa-calculator/",
      "method": "POST",
      "endpoint": "/api/v1/tools/gpa-calculator/run",
      "schema_url": "/api/v1/tools/gpa-calculator",
      "input_schema": {
        "type": "object",
        "additionalProperties": false,
        "properties": {
          "input": {
            "type": "string",
            "maxLength": 1000000,
            "default": "",
            "description": "Plain text input. File tools use files instead unless otherwise documented."
          },
          "options": {
            "type": "object",
            "additionalProperties": false,
            "properties": {}
          }
        }
      },
      "output_schema": {
        "type": "object",
        "required": [
          "tool",
          "result"
        ],
        "properties": {
          "tool": {
            "type": "string"
          },
          "result": {
            "type": "object",
            "required": [
              "text",
              "files"
            ],
            "properties": {
              "text": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "data": {
                "description": "Parsed JSON when the textual result is JSON."
              },
              "name": {
                "type": "string"
              },
              "mime": {
                "type": "string"
              },
              "files": {
                "type": "array",
                "items": {
                  "type": "object",
                  "required": [
                    "name",
                    "mime",
                    "bytes",
                    "base64"
                  ],
                  "properties": {
                    "name": {
                      "type": "string"
                    },
                    "mime": {
                      "type": "string"
                    },
                    "bytes": {
                      "type": "integer"
                    },
                    "base64": {
                      "type": "string",
                      "contentEncoding": "base64"
                    }
                  }
                }
              }
            }
          }
        }
      },
      "processing": "Server; same transformation code as browser tools",
      "limits": {
        "request_bytes": 8388608,
        "input_characters": 1000000,
        "files_bytes": 5242880,
        "max_files": 0,
        "timeout_seconds": 12
      }
    },
    "agent_processing": "Server; same transformation code as browser tools",
    "browser_agent": {
      "supported": true,
      "name": "run_current_tool",
      "discovery": "WebMCP on the human page in a supporting browser",
      "verification": "See audit/API-AUDIT.md; availability is not verification"
    }
  },
  "markdown": "# Gpa calculator\n\n- Human page: https://happytails.ai/en/education-tools/gpa-calculator/\n- Markdown: https://happytails.ai/en/education-tools/gpa-calculator.md\n- Structured JSON: https://happytails.ai/agents/en/education-tools/gpa-calculator/index.json\n- Visibility: public\n\n## Tool capabilities\n\n| Property | Value |\n| --- | --- |\n| Tool ID | `gpa-calculator` |\n| Category | education-tools |\n| Implementation | Registered implementation. Registration alone is not a production-quality guarantee. |\n| Browser execution | Automatic updates after valid input or file selection. |\n| Browser processing | Browser; see tool notes for network behavior. |\n| HTTP API | /api/v1/tools/gpa-calculator/run |\n| Browser-agent interface | run_current_tool |\n\n### Implementation notes\n\nOne score,weight pair per line. For GPA use numeric grade points and course credits.\n\n### Inputs and settings\n\nText input: Grade points and credits.\n\nExample or placeholder shown in the interface (not a validated fixture):\n\n```text\n3,3\n4,3\n```\n\nAdd one numeric grade-point,credit pair per line. Convert letter grades using your institution’s scale first. Results update as you type. Up to 1,000,000 characters.\n\nNo additional settings are declared for this tool.\n\n### HTTP contract\n\nAPI calls process supplied data on the server. The website origin is `https://happytails.ai`. Server API hosting is not connected on the public website yet. Use your local server origin to test these requests.\n\n```http\nPOST https://happytails.ai/api/v1/tools/gpa-calculator/run\nContent-Type: application/json\n```\n\n[Detailed operation reference](https://happytails.ai/en/api/tools/gpa-calculator.md) · [Shared API guide](https://happytails.ai/en/api.md)\n\n#### Limits\n\n| Limit | Value |\n| --- | --- |\n| request_bytes | 8388608 |\n| input_characters | 1000000 |\n| files_bytes | 5242880 |\n| max_files | 0 |\n| timeout_seconds | 12 |\n\n#### Complete input schema\n\n```json\n{\n  \"type\": \"object\",\n  \"additionalProperties\": false,\n  \"properties\": {\n    \"input\": {\n      \"type\": \"string\",\n      \"maxLength\": 1000000,\n      \"default\": \"\",\n      \"description\": \"Plain text input. File tools use files instead unless otherwise documented.\"\n    },\n    \"options\": {\n      \"type\": \"object\",\n      \"additionalProperties\": false,\n      \"properties\": {}\n    }\n  }\n}\n```\n\n#### Complete output schema\n\n```json\n{\n  \"type\": \"object\",\n  \"required\": [\n    \"tool\",\n    \"result\"\n  ],\n  \"properties\": {\n    \"tool\": {\n      \"type\": \"string\"\n    },\n    \"result\": {\n      \"type\": \"object\",\n      \"required\": [\n        \"text\",\n        \"files\"\n      ],\n      \"properties\": {\n        \"text\": {\n          \"type\": [\n            \"string\",\n            \"null\"\n          ]\n        },\n        \"data\": {\n          \"description\": \"Parsed JSON when the textual result is JSON.\"\n        },\n        \"name\": {\n          \"type\": \"string\"\n        },\n        \"mime\": {\n          \"type\": \"string\"\n        },\n        \"files\": {\n          \"type\": \"array\",\n          \"items\": {\n            \"type\": \"object\",\n            \"required\": [\n              \"name\",\n              \"mime\",\n              \"bytes\",\n              \"base64\"\n            ],\n            \"properties\": {\n              \"name\": {\n                \"type\": \"string\"\n              },\n              \"mime\": {\n                \"type\": \"string\"\n              },\n              \"bytes\": {\n                \"type\": \"integer\"\n              },\n              \"base64\": {\n                \"type\": \"string\",\n                \"contentEncoding\": \"base64\"\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n}\n```\n\n#### Error and retry handling\n\nFailures return a non-200 status and `error.code` plus `error.message`. Correct invalid input before retrying; retry server-busy responses with bounded backoff. Returned files contain Base64 data, not persistent download URLs. Decode and inspect the output before treating conversion as successful. See the shared API guide for the complete status and timeout rules.\n\n### Browser-agent workflow\n\n1. Open the human page in a browser that supports WebMCP.\n2. Discover the interface exposed by that page; use its actual schema.\n3. Select files on the page first when the tool requires files.\n4. Call `run_current_tool` with valid input and settings.\n5. Inspect the returned result or error and the displayed output. Retrieve files from the displayed download links.\n\nCalls do not automatically copy or download results. Browser permissions still apply. Interface availability alone is not proof of successful execution.\n\n### Planning specification\n\nUser-selected grading system and credits; explicit conversion rules.\n\nThis describes intended requirements. Use the implementation notes, interface schema and observed output to determine current support.\n\n### Complete machine-readable capability record\n\n```json\n{\n  \"id\": \"gpa-calculator\",\n  \"category\": \"education-tools\",\n  \"built\": true,\n  \"requirements\": \"User-selected grading system and credits; explicit conversion rules.\",\n  \"implementation\": {\n    \"fields\": [],\n    \"note\": \"One score,weight pair per line. For GPA use numeric grade points and course credits.\",\n    \"experience\": {\n      \"automatic\": true,\n      \"single\": false,\n      \"label\": \"Grade points and credits\",\n      \"placeholder\": \"3,3\\n4,3\",\n      \"help\": \"Add one numeric grade-point,credit pair per line. Convert letter grades using your institution’s scale first. Results update as you type. Up to 1,000,000 characters.\",\n      \"action\": null\n    },\n    \"mode\": \"automatic\",\n    \"interactive\": false\n  },\n  \"execution\": \"POST /api/v1/tools/gpa-calculator/run\",\n  \"api\": {\n    \"id\": \"gpa-calculator\",\n    \"name\": \"Gpa calculator\",\n    \"category\": \"education-tools\",\n    \"description\": \"Calculate a weighted GPA from grade points and course credits.\",\n    \"notes\": \"One score,weight pair per line. For GPA use numeric grade points and course credits.\",\n    \"human_path\": \"/en/education-tools/gpa-calculator/\",\n    \"method\": \"POST\",\n    \"endpoint\": \"/api/v1/tools/gpa-calculator/run\",\n    \"schema_url\": \"/api/v1/tools/gpa-calculator\",\n    \"input_schema\": {\n      \"type\": \"object\",\n      \"additionalProperties\": false,\n      \"properties\": {\n        \"input\": {\n          \"type\": \"string\",\n          \"maxLength\": 1000000,\n          \"default\": \"\",\n          \"description\": \"Plain text input. File tools use files instead unless otherwise documented.\"\n        },\n        \"options\": {\n          \"type\": \"object\",\n          \"additionalProperties\": false,\n          \"properties\": {}\n        }\n      }\n    },\n    \"output_schema\": {\n      \"type\": \"object\",\n      \"required\": [\n        \"tool\",\n        \"result\"\n      ],\n      \"properties\": {\n        \"tool\": {\n          \"type\": \"string\"\n        },\n        \"result\": {\n          \"type\": \"object\",\n          \"required\": [\n            \"text\",\n            \"files\"\n          ],\n          \"properties\": {\n            \"text\": {\n              \"type\": [\n                \"string\",\n                \"null\"\n              ]\n            },\n            \"data\": {\n              \"description\": \"Parsed JSON when the textual result is JSON.\"\n            },\n            \"name\": {\n              \"type\": \"string\"\n            },\n            \"mime\": {\n              \"type\": \"string\"\n            },\n            \"files\": {\n              \"type\": \"array\",\n              \"items\": {\n                \"type\": \"object\",\n                \"required\": [\n                  \"name\",\n                  \"mime\",\n                  \"bytes\",\n                  \"base64\"\n                ],\n                \"properties\": {\n                  \"name\": {\n                    \"type\": \"string\"\n                  },\n                  \"mime\": {\n                    \"type\": \"string\"\n                  },\n                  \"bytes\": {\n                    \"type\": \"integer\"\n                  },\n                  \"base64\": {\n                    \"type\": \"string\",\n                    \"contentEncoding\": \"base64\"\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    },\n    \"processing\": \"Server; same transformation code as browser tools\",\n    \"limits\": {\n      \"request_bytes\": 8388608,\n      \"input_characters\": 1000000,\n      \"files_bytes\": 5242880,\n      \"max_files\": 0,\n      \"timeout_seconds\": 12\n    }\n  },\n  \"agent_processing\": \"Server; same transformation code as browser tools\",\n  \"browser_agent\": {\n    \"supported\": true,\n    \"name\": \"run_current_tool\",\n    \"discovery\": \"WebMCP on the human page in a supporting browser\",\n    \"verification\": \"See audit/API-AUDIT.md; availability is not verification\"\n  }\n}\n```\n\n## Page guide\n\nCalculate a weighted GPA from grade points and course credits.\n\n## How to use Gpa calculator\n\n1. Enter your text in the input field.\n2. The result updates as you type. Adjust the available settings if needed.\n3. Review the result, then use Copy result or a download link when available.\n\n## What to expect\n\nCalculate a weighted GPA from grade points and course credits. Enter one numeric grade-point,credit pair per line. Convert letter grades using your institution’s scale first; this tool does not assume a letter-grade policy.\n\n## Useful next steps\n\n- [Grade calculator](https://happytails.ai/en/education-tools/grade-calculator/): Calculate a weighted average from scores and their weights. ([Markdown](https://happytails.ai/en/education-tools/grade-calculator.md))\n\n- [Final grade](https://happytails.ai/en/education-tools/final-grade/): Find the final-exam score needed to reach a target course grade. ([Markdown](https://happytails.ai/en/education-tools/final-grade.md))\n"
}