# LeadHarvest — B2B Contact Enrichment (`imran.cultmarketer/leadharvest`) Actor Real-time B2B contact enrichment from 10+ zero-cost sources. $0.025/lead. 20 leads free. - **URL**: https://apify.com/imran.cultmarketer/leadharvest.md - **Developed by:** [Imran Shaikh](https://apify.com/imran.cultmarketer) (community) - **Categories:** Lead generation - **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, NaN bookmarks - **User rating**: No ratings yet ## Pricing from $0.025 / lead enriched 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 ## LeadHarvest — B2B Contact Enrichment **Find and verify B2B contact emails from company domains. $0.025/lead. 20 leads free.** LeadHarvest enriches company domains into verified B2B contacts using 10+ zero-cost sources — website crawling, SPF/DNS analysis, SSL certificates, WHOIS, GitHub footprints, and Gravatar validation. No API keys required to start. --- ### What It Does Give LeadHarvest a company domain (and optionally a contact name) and it returns: - ✅ Verified email address (Gravatar-confirmed or MX-validated) - ✅ Email confidence score (0–100) and grade (A/B/C/D) - ✅ Company name, description, industry, tech stack - ✅ Domain age, email provider, HQ country - ✅ Social links, logo URL **With contact name:** Generates 12 targeted permutations (patrick@, p.collison@, patrick.collison@, etc.) and validates each against Gravatar. **Without contact name:** Attempts generic company emails (info@, contact@, hello@) via MX validation. --- ### Pricing | Volume | Cost | |--------|------| | First 20 leads | **Free** | | Beyond 20 | **$0.025 per enriched lead** | 8× cheaper than Hunter.io ($0.20/lead) and 20× cheaper than Apollo ($0.50/lead). --- ### Input | Field | Required | Description | |-------|----------|-------------| | Domain List | Yes (batch mode) | List of company domains to enrich | | Single Domain | Yes (API mode) | One domain for API/agent calls | | Contact Name | Optional | Full name → enables targeted email permutations | | Min Confidence Score | Optional | Filter out low-quality results (default: 0) | | Require Verified Email | Optional | Drop leads with no confirmed email | | Suppression Domains | Optional | Skip these domains entirely | | Suppression Emails | Optional | Drop leads matching these emails | | GitHub Token | Optional | Boosts discovery for developer companies | --- ### Output (per domain) ```json { "domain": "stripe.com", "email": "patrick@stripe.com", "email_grade": "A", "confidence_score": 82, "company_name": "Stripe", "company_description": "Online payment processing for internet businesses", "industry": "Fintech", "tech_stack": ["AWS", "React", "Ruby"], "email_provider": "Google Workspace", "domain_age_days": 5840, "hq_country": "United States", "first_name": "Patrick", "last_name": "Collison", "sources_used": ["website_crawler", "whois", "email_permutator", "gravatar"], "schema_version": "1.0" } ```` *** ### Use Cases **SDR teams:** You have a list of target companies from LinkedIn, a trade show, or a Google search. You need emails. Feed the domain list in — get back verified contacts in minutes. **AI agents (Claude, n8n, Zapier, Make):** Call LeadHarvest via API mid-workflow. Pass `domain` + `contactName`, get back a verified email. Wire into your outreach sequence automatically. **Bulk enrichment:** Export a CSV of domains from any source, paste into Domain List, run overnight, download the enriched dataset. *** ### How To Use #### Batch (Domain List) 1. Set **Input Mode** → `Domain List (batch)` 2. Add your domains to **Domain List** 3. Optionally add a **Contact Name** if you know who you're targeting 4. Click **Save & Start** #### API / Agent Call ```json { "inputMode": "singleDomain", "domain": "stripe.com", "contactName": "Patrick Collison" } ``` #### MCP (Claude, Cursor) LeadHarvest is available as an MCP tool. In Claude or any MCP-compatible client: ``` Use the LeadHarvest tool to find the email for Patrick Collison at stripe.com ``` *** ### Email Sources (in waterfall order) 1. Website crawl — extracts emails embedded in HTML/JS 2. SSL certificate — organization emails in cert metadata 3. SPF/DNS records — mail provider and format signals 4. Email format lookup — derives pattern from known data 5. Name permutations — generates and validates 12 variants 6. GitHub footprints — developer company commit emails 7. Gravatar validation — confirms email is attached to a real profile 8. MX validation — verifies the domain accepts email for a candidate *** ### Limitations - **Phone numbers:** Not available from free sources. Not included. - **People discovery:** LeadHarvest enriches domains you already know — it does not search for companies by industry or job title (that requires a paid contact database). - **JS-heavy sites:** Some company sites render entirely in JavaScript. Crawl may return limited data for these. - **Rate limits:** Free tier uses no paid APIs. GitHub token recommended for developer-facing companies. *** ### FAQ **Does it work without a contact name?** Yes — for generic company emails (info@, contact@, hello@). For personal emails, a name is required. **How is confidence score calculated?** Based on data richness: +35 for verified email, +15 for Gravatar-confirmed (Grade A), +15 for company description found, +8 for tech stack detected, +7 for established domain (>1 year old), and breadth bonuses for multiple sources confirming the same data. **Is it GDPR compliant?** LeadHarvest only sources publicly available information. Use the suppression list fields to honour opt-out requests. **Can I call it from n8n or Zapier?** Yes — use the Apify HTTP API. Full API docs at https://docs.apify.com/api/v2. # Actor input Schema ## `inputMode` (type: `string`): How you are providing targets. Use domainList for bulk CSV/batch runs. Use singleDomain for API and agent calls (Claude, n8n, Zapier). ## `domains` (type: `array`): Company domains to enrich. One per line. E.g. stripe.com, hubspot.com. Used when Input Mode is Domain List. ## `domain` (type: `string`): A single company domain. Used when Input Mode is Single Domain. Ideal for API and AI agent calls. ## `contactName` (type: `string`): Full name of the person to find at this company. E.g. Patrick Collison. When provided, LeadHarvest generates and validates targeted email permutations (patrick@, p.collison@, etc.). Without a name, only generic company emails are attempted. ## `maxLeadsPerDomain` (type: `integer`): Maximum number of email candidates to return per domain. Default is 1 (best match only). Set higher to get multiple contacts per company. ## `minConfidenceScore` (type: `integer`): Only return leads with a confidence score at or above this threshold. 0 = return everything. 50 = verified only. 70 = high confidence only. ## `requireVerifiedEmail` (type: `boolean`): When enabled, only returns leads where the email was confirmed via Gravatar or MX validation. Leads with no verified email are dropped. ## `outputFormat` (type: `string`): Controls which fields appear in the output dataset. ## `suppressionDomains` (type: `array`): Domains to skip entirely. Useful for excluding existing customers or competitors. E.g. yourcustomer.com. ## `suppressionEmails` (type: `array`): If any of these emails appear in the output, the lead is dropped. Useful for GDPR opt-out lists. ## `skipAlreadyEnrichedDomains` (type: `boolean`): When enabled, domains already in the cache from a previous run are skipped. Saves quota and cost on repeated runs. ## `githubToken` (type: `string`): Personal access token for GitHub API. Increases rate limit from 60 to 5,000 requests/hour. Improves email discovery for developer-facing companies. Create at github.com/settings/tokens. ## `respectRobotsTxt` (type: `boolean`): When enabled, LeadHarvest skips website crawling for domains that disallow it in robots.txt. Slightly reduces data quality but improves compliance. ## Actor input object example ```json { "inputMode": "domainList", "maxLeadsPerDomain": 1, "minConfidenceScore": 0, "requireVerifiedEmail": false, "outputFormat": "full", "skipAlreadyEnrichedDomains": true, "respectRobotsTxt": true } ``` # 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 '' with your token const client = new ApifyClient({ token: '', }); // Prepare Actor input const input = {}; // Run the Actor and wait for it to finish const run = await client.actor("imran.cultmarketer/leadharvest").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 '' with your token. client = ApifyClient("") # Prepare the Actor input run_input = {} # Run the Actor and wait for it to finish run = client.actor("imran.cultmarketer/leadharvest").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 '{}' | apify call imran.cultmarketer/leadharvest --silent --output-dataset ``` ## MCP server setup ```json { "mcpServers": { "apify": { "command": "npx", "args": [ "mcp-remote", "https://mcp.apify.com/?tools=imran.cultmarketer/leadharvest", "--header", "Authorization: Bearer " ] } } } ``` ## OpenAPI specification ```json { "openapi": "3.0.1", "info": { "title": "LeadHarvest — B2B Contact Enrichment", "description": "Real-time B2B contact enrichment from 10+ zero-cost sources. $0.025/lead. 20 leads free.", "version": "0.0", "x-build-id": "VrlEZE9uAYVGtfxtw" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/imran.cultmarketer~leadharvest/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-imran.cultmarketer-leadharvest", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$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/imran.cultmarketer~leadharvest/runs": { "post": { "operationId": "runs-sync-imran.cultmarketer-leadharvest", "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/imran.cultmarketer~leadharvest/run-sync": { "post": { "operationId": "run-sync-imran.cultmarketer-leadharvest", "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": { "inputMode": { "title": "Input Mode", "enum": [ "domainList", "singleDomain" ], "type": "string", "description": "How you are providing targets. Use domainList for bulk CSV/batch runs. Use singleDomain for API and agent calls (Claude, n8n, Zapier).", "default": "domainList" }, "domains": { "title": "Domain List", "type": "array", "description": "Company domains to enrich. One per line. E.g. stripe.com, hubspot.com. Used when Input Mode is Domain List.", "items": { "type": "string" } }, "domain": { "title": "Single Domain", "type": "string", "description": "A single company domain. Used when Input Mode is Single Domain. Ideal for API and AI agent calls." }, "contactName": { "title": "Contact Name (optional)", "type": "string", "description": "Full name of the person to find at this company. E.g. Patrick Collison. When provided, LeadHarvest generates and validates targeted email permutations (patrick@, p.collison@, etc.). Without a name, only generic company emails are attempted." }, "maxLeadsPerDomain": { "title": "Max Leads Per Domain", "minimum": 1, "maximum": 10, "type": "integer", "description": "Maximum number of email candidates to return per domain. Default is 1 (best match only). Set higher to get multiple contacts per company.", "default": 1 }, "minConfidenceScore": { "title": "Minimum Confidence Score", "minimum": 0, "maximum": 100, "type": "integer", "description": "Only return leads with a confidence score at or above this threshold. 0 = return everything. 50 = verified only. 70 = high confidence only.", "default": 0 }, "requireVerifiedEmail": { "title": "Require Verified Email", "type": "boolean", "description": "When enabled, only returns leads where the email was confirmed via Gravatar or MX validation. Leads with no verified email are dropped.", "default": false }, "outputFormat": { "title": "Output Format", "enum": [ "full", "email_only", "essential" ], "type": "string", "description": "Controls which fields appear in the output dataset.", "default": "full" }, "suppressionDomains": { "title": "Suppression: Skip These Domains", "type": "array", "description": "Domains to skip entirely. Useful for excluding existing customers or competitors. E.g. yourcustomer.com.", "items": { "type": "string" } }, "suppressionEmails": { "title": "Suppression: Skip These Emails", "type": "array", "description": "If any of these emails appear in the output, the lead is dropped. Useful for GDPR opt-out lists.", "items": { "type": "string" } }, "skipAlreadyEnrichedDomains": { "title": "Skip Already-Enriched Domains", "type": "boolean", "description": "When enabled, domains already in the cache from a previous run are skipped. Saves quota and cost on repeated runs.", "default": true }, "githubToken": { "title": "GitHub Token (optional)", "type": "string", "description": "Personal access token for GitHub API. Increases rate limit from 60 to 5,000 requests/hour. Improves email discovery for developer-facing companies. Create at github.com/settings/tokens." }, "respectRobotsTxt": { "title": "Respect robots.txt", "type": "boolean", "description": "When enabled, LeadHarvest skips website crawling for domains that disallow it in robots.txt. Slightly reduces data quality but improves compliance.", "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 } } } } } } } } } } ```