OpenGTM
OpenGTM: A flexible open-source choice for enrichment waterfalls, AI research, and workflow routing. Ranked #2 of 31 in Data Enrichment Software by our editors (9.2/10); pricing: Free plan; best for open-source enrichment waterfalls and workflows.
At a glance
- Editor score9.2 / 10
- PricingFree plan
- Best forOpen-source enrichment waterfalls and workflows
- Free planYes
- Paid fromFree
- Facts checked22 Sep 2026
Where it wins
- Sequential waterfalls with provider ordering and confidence-based early exit
- Broad enrichment across contact, company, social, technology, and buying signals
- REST API, MCP, webhooks, n8n, CRM, spreadsheet, and sequencer outputs
Where it doesn't
- Requires users to run the software on their own infrastructure
- Users must supply provider keys for connected enrichment and AI services
- Third-party enrichment and AI charges are paid separately to providers
Our verdict on OpenGTM
OpenGTM is an AGPLv3-licensed, self-hosted GTM platform for sourcing leads, enriching company and contact records, researching accounts with AI, tracking buying signals, and routing results to sales tools. It is aimed at teams that want control over enrichment workflows and infrastructure rather than a closed, fixed-purpose data tool. The product is available through the web, API, self-hosted deployment, and a Chrome extension, with a free open-source model.
Its standout capability is the sequential enrichment waterfall. Teams can order providers, stop early when confidence is sufficient, and work across email finding and verification, phone, firmographics, decision-makers, social, technology stack, hiring, IP/domain, and scoring data. AI, research, and goal-directed agent columns extend the workflow beyond static enrichment. Buying-signal detection covers hiring, funding, technology, website, news, growth, and social events, while pre-run cost estimates, provider cost ledgers, and spend ceilings provide visibility into provider usage.
OpenGTM also fits teams that need several routes from enriched data: HubSpot, Salesforce, Google Sheets, Airtable, webhooks, email sequencers, n8n, REST API access, and an MCP server are supported. The main operational consideration is ownership: users run the software on their own infrastructure, supply their own provider keys, and pay connected enrichment and AI providers directly. Choose OpenGTM when open-source control, wide enrichment coverage, programmable interfaces, and configurable waterfalls matter most. Consider another option if you want a fully managed service with provider costs and infrastructure handled in one offering.
Your product? Our editors can test OpenGTM in depth and publish a review, labelled as paid · from $149/mo →
OpenGTM pricing
OpenGTM fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Enrichment types | email, phone, firmographic, technographic, hiring, social, identity |
| Monthly credits | Not verified |
| API access | Yes |
| CRM sync | Yes |
| Waterfall enrichment | Yes |
| Data freshness | Not verified |
| Deployment | Self-hosted, Browser extension |
| Platforms | Web, Chrome extension |
| Support | Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 10 integrations: HubSpot, Salesforce, Slack, Google Sheets, Airtable, Instantly … |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 22 Sep 2026 |
OpenGTM integrations
OpenGTM lists 10 integrations on its own site.
- HubSpot
- Salesforce
- Slack
- Google Sheets
- Airtable
- Instantly
- Smartlead
- webhooks
- warehouses
- ad audiences
Alternatives to OpenGTM
- ClayBroad enrichment and workflow automation with waterfall providers, AI research, and CRM sync.9.4
- People Data LabsA broad, API-first enrichment platform for teams building data workflows.9.1
- 6senseA broad enrichment and intent platform for teams prioritizing account-level buying signals.9.0
See all OpenGTM alternatives →
OpenGTM vs the competition
- OpenGTM vs Clay
- OpenGTM vs People Data Labs
- OpenGTM vs 6sense
- OpenGTM vs ZoomInfo
- OpenGTM vs Coresignal
- OpenGTM vs FullEnrich
Compare OpenGTM with any tool side by side →
Used OpenGTM? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used OpenGTM for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
OpenGTM is listed in our Data Enrichment Software directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/opengtm/"><img src="https://www.itechguides.com/best/badge/opengtm.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update