# npm Package Maintainer Leads & Email Finder (`wishful_knowledge/npm-package-maintainer-leads-scraper`) Actor

Find npm package maintainer leads and extract repositories, homepages, public business emails, community signals, and developer-tool outreach scores.

- **URL**: https://apify.com/wishful\_knowledge/npm-package-maintainer-leads-scraper.md
- **Developed by:** [sanfeng zhang](https://apify.com/wishful_knowledge) (community)
- **Categories:** Lead generation, Developer tools, Automation
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, NaN bookmarks
- **User rating**: No ratings yet

## Pricing

Pay per usage

This Actor is paid per platform usage. The Actor is free to use, and you only pay for the Apify platform usage, which gets cheaper the higher subscription plan you have.

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

## 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

## npm Package Maintainer Leads & Email Finder

Find npm package and open-source maintainer leads with repositories, homepages, public business emails, and developer-tool outreach scores.

This Actor is for companies selling developer tools, APIs, security, monitoring, documentation, CI/CD, hosting, and open-source partnership services.

By default it does not include npm maintainer emails, because those can be personal. It enriches package homepages and repositories for business contact and community signals instead. Maintainer emails can be enabled explicitly.

### Fast start

Run a small npm keyword search first:

```json
{
  "searchTerms": ["shopify", "stripe"],
  "maxPackagesPerTerm": 5,
  "maxPackages": 10,
  "enrichPackageLinks": true,
  "includeMaintainerEmails": false,
  "includePersonalEmails": false,
  "requireBusinessEmail": false,
  "minLeadScore": 35
}
````

### Example output

Each saved row connects npm package traction to maintainer or business contact signals:

```json
{
  "packageName": "example-package",
  "npmUrl": "https://www.npmjs.com/package/example-package",
  "repositoryUrl": "https://github.com/example/example-package",
  "homepage": "https://example.com",
  "emails": ["support@example.com"],
  "leadScore": 61,
  "suggestedAngles": ["Developer tool partnership", "Security or monitoring outreach"]
}
```

### Pricing

Suggested launch pricing: USD 0.01 per saved npm package lead.

### Local run

```powershell
node .\src\main.js --input .\sample-input.json
```

### Keywords

npm package leads, npm maintainer leads, npm maintainer email finder, npm package email finder, JavaScript developer leads, open source maintainer leads, developer tool prospecting, npm maintainer scraper, OSS lead generation, GitHub repository leads, developer API leads.

# Actor input Schema

## `searchTerms` (type: `array`):

Keywords to search in npm.

## `maxPackagesPerTerm` (type: `integer`):

Maximum npm package results to collect from each search term.

## `maxPackages` (type: `integer`):

Maximum unique npm package leads to analyze and score.

## `enrichPackageLinks` (type: `boolean`):

Fetch public package homepages or repositories to find business contact and community signals.

## `includeMaintainerEmails` (type: `boolean`):

When enabled, includes public maintainer emails from npm metadata. Disabled by default.

## `includePersonalEmails` (type: `boolean`):

When disabled, keeps only generic business role emails found on public package links.

## `requireBusinessEmail` (type: `boolean`):

When enabled, only package leads with a public business email are saved.

## `minLeadScore` (type: `integer`):

Only records with this lead score or higher are saved.

## `requestDelayMs` (type: `integer`):

Delay between enrichment requests, in milliseconds.

## `timeoutSecs` (type: `integer`):

Timeout for each HTTP request.

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

HTTP User-Agent header used for enrichment requests.

## Actor input object example

```json
{
  "searchTerms": [
    "shopify",
    "stripe",
    "react"
  ],
  "maxPackagesPerTerm": 20,
  "maxPackages": 100,
  "enrichPackageLinks": true,
  "includeMaintainerEmails": false,
  "includePersonalEmails": false,
  "requireBusinessEmail": false,
  "minLeadScore": 35,
  "requestDelayMs": 500,
  "timeoutSecs": 15,
  "userAgent": "Mozilla/5.0 (compatible; NpmPackageMaintainerLeadsScraper/0.1; +https://apify.com/)"
}
```

# Actor output Schema

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

No description

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

No description

# 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 = {
    "searchTerms": [
        "shopify",
        "stripe",
        "react"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("wishful_knowledge/npm-package-maintainer-leads-scraper").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 = { "searchTerms": [
        "shopify",
        "stripe",
        "react",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("wishful_knowledge/npm-package-maintainer-leads-scraper").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 '{
  "searchTerms": [
    "shopify",
    "stripe",
    "react"
  ]
}' |
apify call wishful_knowledge/npm-package-maintainer-leads-scraper --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://mcp.apify.com/?tools=wishful_knowledge/npm-package-maintainer-leads-scraper",
                "--header",
                "Authorization: Bearer <YOUR_API_TOKEN>"
            ]
        }
    }
}

```

## OpenAPI specification

```json
{
    "openapi": "3.0.1",
    "info": {
        "title": "npm Package Maintainer Leads & Email Finder",
        "description": "Find npm package maintainer leads and extract repositories, homepages, public business emails, community signals, and developer-tool outreach scores.",
        "version": "0.1",
        "x-build-id": "kjsHiWEK1IPHsBbBX"
    },
    "servers": [
        {
            "url": "https://api.apify.com/v2"
        }
    ],
    "paths": {
        "/acts/wishful_knowledge~npm-package-maintainer-leads-scraper/run-sync-get-dataset-items": {
            "post": {
                "operationId": "run-sync-get-dataset-items-wishful_knowledge-npm-package-maintainer-leads-scraper",
                "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": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        },
        "/acts/wishful_knowledge~npm-package-maintainer-leads-scraper/runs": {
            "post": {
                "operationId": "runs-sync-wishful_knowledge-npm-package-maintainer-leads-scraper",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor and returns information about the initiated run in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$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": {
                                    "$ref": "#/components/schemas/runsResponseSchema"
                                }
                            }
                        }
                    }
                }
            }
        },
        "/acts/wishful_knowledge~npm-package-maintainer-leads-scraper/run-sync": {
            "post": {
                "operationId": "run-sync-wishful_knowledge-npm-package-maintainer-leads-scraper",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$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": {
                    "searchTerms": {
                        "title": "Package search terms",
                        "type": "array",
                        "description": "Keywords to search in npm.",
                        "items": {
                            "type": "string"
                        }
                    },
                    "maxPackagesPerTerm": {
                        "title": "Max packages per term",
                        "minimum": 1,
                        "maximum": 250,
                        "type": "integer",
                        "description": "Maximum npm package results to collect from each search term.",
                        "default": 20
                    },
                    "maxPackages": {
                        "title": "Max package leads",
                        "minimum": 1,
                        "maximum": 500,
                        "type": "integer",
                        "description": "Maximum unique npm package leads to analyze and score.",
                        "default": 100
                    },
                    "enrichPackageLinks": {
                        "title": "Enrich package links",
                        "type": "boolean",
                        "description": "Fetch public package homepages or repositories to find business contact and community signals.",
                        "default": true
                    },
                    "includeMaintainerEmails": {
                        "title": "Include npm maintainer emails",
                        "type": "boolean",
                        "description": "When enabled, includes public maintainer emails from npm metadata. Disabled by default.",
                        "default": false
                    },
                    "includePersonalEmails": {
                        "title": "Include individual-looking emails",
                        "type": "boolean",
                        "description": "When disabled, keeps only generic business role emails found on public package links.",
                        "default": false
                    },
                    "requireBusinessEmail": {
                        "title": "Require business email for saved leads",
                        "type": "boolean",
                        "description": "When enabled, only package leads with a public business email are saved.",
                        "default": false
                    },
                    "minLeadScore": {
                        "title": "Minimum lead score",
                        "minimum": 0,
                        "maximum": 100,
                        "type": "integer",
                        "description": "Only records with this lead score or higher are saved.",
                        "default": 35
                    },
                    "requestDelayMs": {
                        "title": "Request delay",
                        "minimum": 0,
                        "maximum": 10000,
                        "type": "integer",
                        "description": "Delay between enrichment requests, in milliseconds.",
                        "default": 500
                    },
                    "timeoutSecs": {
                        "title": "Request timeout",
                        "minimum": 5,
                        "maximum": 60,
                        "type": "integer",
                        "description": "Timeout for each HTTP request.",
                        "default": 15
                    },
                    "userAgent": {
                        "title": "User agent",
                        "type": "string",
                        "description": "HTTP User-Agent header used for enrichment requests.",
                        "default": "Mozilla/5.0 (compatible; NpmPackageMaintainerLeadsScraper/0.1; +https://apify.com/)"
                    }
                }
            },
            "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
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}
```
