Clearbit (now HubSpot Breeze Intelligence) enriches a record from a domain or email. DataForGTM starts from a GitHub username — the identity Clearbit can't key on — and resolves it to a real person and their developer-intent signals.
These tools enrich from different starting points, so they're more complementary than head-to-head. The honest comparison:
| DataForGTM | Clearbit / HubSpot Breeze | |
|---|---|---|
| Enrichment key | GitHub username + developer behavior | Domain, email, or company |
| GitHub username → LinkedIn person | Yes — the core product | No |
| Developer / company intent from GitHub activity | Yes (by repo, org, or company) | No |
| Company firmographics from a domain | No | Yes — deep and mature |
| Website visitor reveal / IP-to-company | No | Yes |
| HubSpot-native enrichment workflows | No | Yes (native to Breeze) |
| Agent-callable (MCP / OpenAPI) | Yes | Platform/CRM-bound |
| Pricing | Pay-per-resolve (~$0.30), charged only on a hit | Credit / platform tiers |
When you have a GitHub identity — a contributor, a star, a repo author your agent surfaced — but no email or domain, Clearbit has nothing to key on. DataForGTM does. Send the username and get back the LinkedIn profile. You only pay (2 credits, ~$0.30) when there's a hit; misses are free.
curl -X POST https://dataforgtm.ai/api/v1/deanon \
-H "Authorization: Bearer $DATAFORGTM_API_KEY" \
-H "Content-Type: application/json" \
-d '{"github_username": "torvalds"}'If your starting point is a domain or email — website visitor reveal, IP-to-company, form-fill enrichment, or firmographic fields written natively into HubSpot — Clearbit / Breeze is built for that and is more mature there. DataForGTM doesn't do domain-based firmographics or visitor de-anonymization, and isn't CRM-native.
If your signal is a GitHub identity rather than a company domain, and you want enrichment as composable tools an AI agent can call — resolve a handle to a person, pull intent for a repo, score a company against your ICP — self-serve and pay-per-use, DataForGTM is built for that. Start a trial → · OpenAPI spec