GTM Tech Stack Signal Enrichment

GTM tech stack detection for Clay. Flat boolean output. No JSON parsing required.

Takes a company domain or URL, renders the page with headless Chromium, and returns a single flat row with boolean flags for each GTM tool detected. Drop it into a Clay HTTP Request column and filter on gtm_tool_count > 0 to qualify your list instantly.

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Who this is for

• Clay users building outbound qualification tables who need GTM tool flags without writing formula columns
• GTM agencies enriching lead lists with tech stack signals at scale
• RevOps teams segmenting accounts by CRM, sequencer, and marketing automation usage

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Input

Field	Type	Required	Notes
url	String	Yes	Company domain or full URL. Both work: hubspot.com or https://hubspot.com
company_domain	String	No	Alternative to url field. Use either one.

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Output

Every field is present in every row. No nested JSON. Ready to use as a Clay enrichment column.

Field	Type	Description
company_domain	String	Normalized domain from input
crm_detected	String	hubspot / salesforce / pipedrive / zoho / none
seq_tool_detected	String	outreach / salesloft / apollo / instantly / lemlist / reply / none
uses_hubspot	Boolean	HubSpot CRM or Marketing Hub detected
uses_salesforce	Boolean	Salesforce detected
uses_clay	Boolean	Clay detected
uses_apollo	Boolean	Apollo.io detected
uses_outreach	Boolean	Outreach detected
uses_gong	Boolean	Gong detected
uses_zoominfo	Boolean	ZoomInfo detected
uses_linkedin_sales_nav	Boolean	LinkedIn Sales Navigator detected
uses_drift	Boolean	Drift detected
uses_intercom	Boolean	Intercom detected
marketing_automation_detected	String	marketo / pardot / hubspot / eloqua / none
gtm_tool_count	Integer	Count of true boolean fields
tech_stack_signal	String	high / medium / low
detection_error	Boolean	True if domain timed out or was blocked
run_date	ISO Date	Timestamp of the run

Sample output:

{
  "company_domain": "hubspot.com",
  "crm_detected": "hubspot",
  "seq_tool_detected": "none",
  "uses_hubspot": true,
  "uses_salesforce": false,
  "uses_clay": false,
  "uses_apollo": false,
  "uses_outreach": false,
  "uses_gong": false,
  "uses_zoominfo": false,
  "uses_linkedin_sales_nav": false,
  "uses_drift": false,
  "uses_intercom": false,
  "marketing_automation_detected": "hubspot",
  "gtm_tool_count": 1,
  "tech_stack_signal": "medium",
  "detection_error": false,
  "run_date": "2026-04-06T09:03:47.744Z"
}

Clay gate column: gtm_tool_count > 0

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How signal strength is derived

Strength	Criteria
high	CRM detected AND sequencer detected AND 3 or more total tools
medium	CRM or sequencer detected, 1 to 2 total tools
low	At least 1 tool detected, no CRM and no sequencer

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Clay integration

1. Add a new column in your Clay table. Select HTTP Request.
2. Set the URL to: https://api.apify.com/v2/acts/mambalabs~gtm-tech-stack-signal-scraper/run-sync-get-dataset-items?token=YOUR_API_TOKEN
3. Set Method to POST.
4. Set the body: { "url": "{{domain}}" }
5. Map the response fields you want as Clay columns: crm_detected, gtm_tool_count, tech_stack_signal, uses_hubspot.
6. Set your run condition: only run if domain is not empty.
7. Filter your view: gtm_tool_count greater than 0.

Your API token is in your Apify account under Settings > Integrations.

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Known limitations

Tools not detectable via website scrape: Clay, Apollo, Outreach, Gong, ZoomInfo, Salesloft, Instantly, Lemlist, LinkedIn Sales Navigator. These are backend-only or internal SaaS products with no client-side footprint on a company's public website. This is not a bug.

Auth-walled pages: Detection runs against the public-facing homepage only.

Custom CDN routing: Some companies proxy third-party scripts through their own CDN, which can cause false negatives.

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Pricing

$0.07 per result. Pay per event, billed once per domain processed.

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Related Actors

• GTM Hiring Signal Scraper - Scrape Greenhouse, Lever, and Ashby for GTM hiring signals. $0.07/result.
• GTM Signals Aggregator - Run both hiring signals and tech stack detection in one call. $0.12/result vs $0.14 if run separately. Saves 14% and adds a composite signal score.

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Built by Mamba Labs.