Clearbit
Enrich, identify, and act on intent
What is Clearbit
Clearbit pulls 100+ B2B attributes from its data sources and appends them to CRM records in real time, while simultaneously identifying anonymous website visitors and surfacing buying intent signals. It is built for SDRs, BDRs, RevOps teams, and GTM leads at mid-market and enterprise companies who need their CRM data to stay accurate without manual upkeep. The standout capability is automatic record refresh — Clearbit continuously corrects and updates existing records rather than just enriching them at the point of creation. Since its acquisition by HubSpot, the platform is deeply embedded in the HubSpot ecosystem, which means teams running Salesforce as their primary CRM will find the native experience noticeably thinner by comparison.
Key features
fills records with firmographic, technographic, or signal data
first-party connectors, no middleware required
intent signals, real-time enrichment, visitor identification, firmographic + tech-stack data
event-driven integrations
Vanderbuild take
For RevOps and GTM leads who need their CRM to reflect reality without a manual data hygiene process, Clearbit is one of the more direct tools in the Data Enrichment and Visitor Identification subcategory — it handles enrichment, visitor ID, and intent signals in one place rather than requiring three separate vendors. The API is available and capable, so you can wrap it into your own automation layer or MCP stack without much friction — it won't fight you when you try to build on top of it. Pricing is not publicly listed, which means you're going into a sales conversation blind; budget accordingly and push for usage-based clarity before signing. The deeper limitation is that since the HubSpot acquisition, Clearbit's roadmap and native experience are increasingly HubSpot-first — if Salesforce is your system of record, you'll get the data but not the same depth of workflow automation.
Agentic stack profile
APIRESTProgrammatic access available.
REST API — straightforward to call from any agent or workflow tool. Rate limits and auth vary by plan.
API docs →Agentic readinessCapableSolid API access — wraps cleanly for agent use.
Solid REST or SDK access. No MCP server yet, but easy to wrap in custom agent tooling. Most modern SaaS tools land here.
Stack roleEnricher · Signal sourceWhere this tool slots into an agentic pipeline.
Plays the role of Enricher + Signal source in an agentic pipeline. Use it to add firmographic, technographic, and signal data to a lead row on the fly; surface buying intent — funding, hiring, job changes, web visits.
Clearbit alternatives
Tools that solve a similar problem — compared at a glance.
- Best for
- SDR / BDR, RevOps
- Readiness
- Capable
- API
- REST
- Pricing
- Freemium
- Budget
- $$$
- Best for
- RevOps, GTM Engineer
- Readiness
- Native
- MCP
- Yes
- API
- REST
- Best for
- SDR / BDR, Account Executive
- Readiness
- Capable
- API
- REST
Frequently asked questions
Does Clearbit have a public API?
Yes — Clearbit ships a REST API. Docs: https://person.clearbit.com/.
Who is Clearbit best for?
Clearbit is built for SDR / BDR, RevOps, GTM Lead. Fits Mid-market (50-500), Enterprise-sized teams.
How well does Clearbit fit an agentic sales stack?
Tier: Capable. Solid public API, no MCP yet — straightforward to wrap in your own agent tooling.