# Hook & Virality Scorer (`dami_studio/hook-virality-scorer`) Actor

Score any title, hook, or script for scroll-stopping power — 0-100 with a letter grade, a breakdown (curiosity, emotion, power words, specificity, relatability), the signals it detected, and concrete rewrite suggestions. Rank a batch of variants. No AI, instant.

- **URL**: https://apify.com/dami\_studio/hook-virality-scorer.md
- **Developed by:** [Dami's Studio](https://apify.com/dami_studio) (community)
- **Categories:** Marketing, For creators, Social media
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $3.00 / 1,000 hook scoreds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-event

## What's an Apify Actor?

Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.
Actors are written with capital "A".

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.
The best way to integrate Actors is as follows.

In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md):

```bash
npm install apify-client
```

In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md):

```bash
pip install apify-client
```

In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md):

````bash
# MacOS / Linux
curl -fsSL https://apify.com/install-cli.sh | bash
# Windows
irm https://apify.com/install-cli.ps1 | iex
```bash

In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md).

If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md).

For usage examples, see the [API](#api) section below.

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).


# README

## Hook & Virality Scorer

Score a title, hook, or opening line for scroll-stopping power and get back a 0-100 number with a letter grade. It's built for short-form creators and copywriters who are sitting on five title ideas and want a fast, repeatable way to pick one instead of arguing about it. Pass a batch of variants and it ranks them best-first.

### How it works

It runs a deterministic rule pass over the text. It counts curiosity phrases, emotion and high-stakes words, power words, numbers, questions, and "you"/"I" framing, then scores six weighted dimensions and applies penalties for filler and excess ALL-CAPS. No AI, no API calls, so the same input always returns the same score.

### Input

You don't have to set anything beyond the text. Pass `text` for one string or `texts` for a batch.

| Field | Required | Notes |
|-------|----------|-------|
| `texts` | no | Array of titles/hooks/scripts to score. Strings or objects (it reads `title`, `hook`, `text`, or `scriptText`). Pass several to compare variants. |
| `text` | no | A single title or hook, as an alternative to the array. |
| `type` | no | `auto`, `title`, or `script`. Auto treats anything up to 18 words as a title. Controls the length scoring. Default `auto`. |
| `rankResults` | no | Sort output best-first and add a `rank`. Default `true`. |

At least one of `text` or `texts` must resolve to a non-empty string, otherwise the run fails.

### Output

One dataset item per scored hook. Each item has the `score` (0-100), `grade` (A through F), and the original `text`, plus a `breakdown` object with the per-dimension points (curiosity, emotion, powerWords, specificity, relatability, length), a `signals` object listing exactly what it matched (word count, numbers, questions, the specific power/curiosity/emotion/filler words found), and a `suggestions` array of concrete rewrites for whatever scored low. When ranking is on, items also carry a `rank`.

### Example

```json
{
  "texts": [
    "I tried the viral 5am routine for 30 days",
    "You won't believe what happened when I confronted my MIL",
    "My morning routine"
  ],
  "type": "auto",
  "rankResults": true
}
````

### Pricing

$0.003 per hook scored, pay-per-result, no subscription.

### Notes

The scoring is keyword and pattern based and tuned for English. It rewards the usual viral signals (open loops, stakes, specificity), so treat it as a fast first-pass filter and A/B comparison tool, not a guarantee that a high-scoring hook will actually go viral.

# Actor input Schema

## `texts` (type: `array`):

Titles, hooks, or scripts to score. Strings OR objects (uses title/hook/text/scriptText). Pass several variants to rank them.

## `text` (type: `string`):

A single title/hook to score (alternative to the array).

## `type` (type: `string`):

Score as a short title, a longer script/hook, or auto-detect.

## `rankResults` (type: `boolean`):

Sort results best-first and add a rank.

## Actor input object example

```json
{
  "texts": [
    "I tried the viral 5am routine for 30 days",
    "You won't believe what happened when I confronted my MIL",
    "My morning routine"
  ],
  "type": "auto",
  "rankResults": true
}
```

# Actor output Schema

## `results` (type: `string`):

Result rows / metadata are stored in the default dataset (one row per item).

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "texts": [
        "I tried the viral 5am routine for 30 days",
        "You won't believe what happened when I confronted my MIL",
        "My morning routine"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("dami_studio/hook-virality-scorer").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = { "texts": [
        "I tried the viral 5am routine for 30 days",
        "You won't believe what happened when I confronted my MIL",
        "My morning routine",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("dami_studio/hook-virality-scorer").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"])
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "texts": [
    "I tried the viral 5am routine for 30 days",
    "You won'\''t believe what happened when I confronted my MIL",
    "My morning routine"
  ]
}' |
apify call dami_studio/hook-virality-scorer --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://mcp.apify.com/?tools=dami_studio/hook-virality-scorer",
                "--header",
                "Authorization: Bearer <YOUR_API_TOKEN>"
            ]
        }
    }
}

```

## OpenAPI specification

```json
{
    "openapi": "3.0.1",
    "info": {
        "title": "Hook & Virality Scorer",
        "description": "Score any title, hook, or script for scroll-stopping power — 0-100 with a letter grade, a breakdown (curiosity, emotion, power words, specificity, relatability), the signals it detected, and concrete rewrite suggestions. Rank a batch of variants. No AI, instant.",
        "version": "0.1",
        "x-build-id": "f9htLo3ahDD8BzHoB"
    },
    "servers": [
        {
            "url": "https://api.apify.com/v2"
        }
    ],
    "paths": {
        "/acts/dami_studio~hook-virality-scorer/run-sync-get-dataset-items": {
            "post": {
                "operationId": "run-sync-get-dataset-items-dami_studio-hook-virality-scorer",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        },
        "/acts/dami_studio~hook-virality-scorer/runs": {
            "post": {
                "operationId": "runs-sync-dami_studio-hook-virality-scorer",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor and returns information about the initiated run in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK",
                        "content": {
                            "application/json": {
                                "schema": {
                                    "$ref": "#/components/schemas/runsResponseSchema"
                                }
                            }
                        }
                    }
                }
            }
        },
        "/acts/dami_studio~hook-virality-scorer/run-sync": {
            "post": {
                "operationId": "run-sync-dami_studio-hook-virality-scorer",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        }
    },
    "components": {
        "schemas": {
            "inputSchema": {
                "type": "object",
                "properties": {
                    "texts": {
                        "title": "Texts / variants",
                        "type": "array",
                        "description": "Titles, hooks, or scripts to score. Strings OR objects (uses title/hook/text/scriptText). Pass several variants to rank them."
                    },
                    "text": {
                        "title": "Single text",
                        "type": "string",
                        "description": "A single title/hook to score (alternative to the array)."
                    },
                    "type": {
                        "title": "Type",
                        "enum": [
                            "auto",
                            "title",
                            "script"
                        ],
                        "type": "string",
                        "description": "Score as a short title, a longer script/hook, or auto-detect.",
                        "default": "auto"
                    },
                    "rankResults": {
                        "title": "Rank by score",
                        "type": "boolean",
                        "description": "Sort results best-first and add a rank.",
                        "default": true
                    }
                }
            },
            "runsResponseSchema": {
                "type": "object",
                "properties": {
                    "data": {
                        "type": "object",
                        "properties": {
                            "id": {
                                "type": "string"
                            },
                            "actId": {
                                "type": "string"
                            },
                            "userId": {
                                "type": "string"
                            },
                            "startedAt": {
                                "type": "string",
                                "format": "date-time",
                                "example": "2025-01-08T00:00:00.000Z"
                            },
                            "finishedAt": {
                                "type": "string",
                                "format": "date-time",
                                "example": "2025-01-08T00:00:00.000Z"
                            },
                            "status": {
                                "type": "string",
                                "example": "READY"
                            },
                            "meta": {
                                "type": "object",
                                "properties": {
                                    "origin": {
                                        "type": "string",
                                        "example": "API"
                                    },
                                    "userAgent": {
                                        "type": "string"
                                    }
                                }
                            },
                            "stats": {
                                "type": "object",
                                "properties": {
                                    "inputBodyLen": {
                                        "type": "integer",
                                        "example": 2000
                                    },
                                    "rebootCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "restartCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "resurrectCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "computeUnits": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            },
                            "options": {
                                "type": "object",
                                "properties": {
                                    "build": {
                                        "type": "string",
                                        "example": "latest"
                                    },
                                    "timeoutSecs": {
                                        "type": "integer",
                                        "example": 300
                                    },
                                    "memoryMbytes": {
                                        "type": "integer",
                                        "example": 1024
                                    },
                                    "diskMbytes": {
                                        "type": "integer",
                                        "example": 2048
                                    }
                                }
                            },
                            "buildId": {
                                "type": "string"
                            },
                            "defaultKeyValueStoreId": {
                                "type": "string"
                            },
                            "defaultDatasetId": {
                                "type": "string"
                            },
                            "defaultRequestQueueId": {
                                "type": "string"
                            },
                            "buildNumber": {
                                "type": "string",
                                "example": "1.0.0"
                            },
                            "containerUrl": {
                                "type": "string"
                            },
                            "usage": {
                                "type": "object",
                                "properties": {
                                    "ACTOR_COMPUTE_UNITS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_WRITES": {
                                        "type": "integer",
                                        "example": 1
                                    },
                                    "KEY_VALUE_STORE_LISTS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_INTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_EXTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_SERPS": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            },
                            "usageTotalUsd": {
                                "type": "number",
                                "example": 0.00005
                            },
                            "usageUsd": {
                                "type": "object",
                                "properties": {
                                    "ACTOR_COMPUTE_UNITS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_WRITES": {
                                        "type": "number",
                                        "example": 0.00005
                                    },
                                    "KEY_VALUE_STORE_LISTS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_INTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_EXTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_SERPS": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}
```
