Best Clearbit Alternatives for AI Agents | Salestools Club
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Alternatives

Best Clearbit Alternatives

39 tools positioned as Clearbit alternatives, ranked by API quality and AI-agent readiness.

Comparison Matrix

Side-by-side spec comparison. Click tool names for full details.

ToolMCPFree TierAPIAuthPricing
Crustdata RESTAPI KeyView
Signaliz RESTAPI KeyView
LeadMagic RESTOAuth2, API KeyView
DataLayer RESTAPI KeyView
Bytemine RESTAPI KeyView
StackSwap RESTBearer TokenView
Coresignal RESTAPI KeyView
Enricher.io RESTAPI KeyView
EnrichmentAPI RESTAPI KeyView
DataLayer RESTAPI Key, OAuth2View
EnrichAPI RESTAPI Key
Fire Enrich RESTAPI Key
SiteEnrich RESTAPI KeyView
HG Insights RESTAPI KeyView
Versium RESTAPI KeyView
Interseller RESTAPI KeyView
Derrick RESTAPI KeyView
Brandfetch RESTAPI KeyView
CompanyEnrich RESTAPI KeyView
Vainu RESTAPI KeyView
Clay REST, CLIAPI KeyView
Clearbit (Breeze) RESTAPI Key, Bearer TokenView
Clodura.AI RESTAPI KeyView
Coresignal RESTBearer TokenView
Crunchbase RESTAPI KeyView
CUFinder RESTAPI KeyView
Datagma RESTAPI KeyView
Dropcontact RESTAPI KeyView
Enrich.so RESTAPI KeyView
ExactBuyer RESTAPI KeyView
Explorium RESTAPI KeyView
FullContact RESTAPI KeyView
LeadMagic RESTAPI KeyView
Octolane RESTAPI KeyView
Orbitly RESTAPI KeyView
People Data Labs RESTAPI KeyView
PredictLeads RESTAPI KeyView
Proxycurl RESTAPI KeyView
Saber RESTBearer TokenView

Last updated from tool data. Pricing URLs link to official pages.

Quick Picks

Best MCP Ready

Crustdata

Real-time B2B data API for people and company enrichment with native MCP.

Best Free Tier

Crustdata

Real-time B2B data API for people and company enrichment with native MCP.

Best Webhooks

Crustdata

Real-time B2B data API for people and company enrichment with native MCP.

All 39 Alternatives

Crustdata
MCP

Real-time B2B data API for people and company enrichment with native MCP.

Sales IntelligenceFree
Signaliz
MCP

GTM data quality and enrichment platform with REST API, MCP, CLI, and SDK for AI agents.

Sales IntelligenceFree
LeadMagic
MCP

Lead enrichment and account intelligence API with hosted MCP server and 30+ tools for AI agents.

Sales IntelligenceFree
DataLayer
MCP

B2B enrichment API with MCP — 60M companies, 300M contacts, intent signals, and technographics.

Sales IntelligencePaid
Bytemine
MCP

B2B data platform with 25 MCP tools for people search, company enrichment, funding signals, and proposals.

Sales IntelligencePaid
StackSwap
MCP

Lead enrichment and buyer model training API with free MCP server (32 GTM intelligence tools).

Sales IntelligenceFree
Coresignal

B2B data API with Agentic Search — natural language queries for companies, employees, and jobs.

Sales IntelligencePaid
Enricher.io

Data enrichment API for people, company, and technology data.

Sales IntelligencePaid
EnrichmentAPI

B2B data enrichment REST API for company and employee information.

Sales IntelligenceFree
DataLayer
MCP

B2B data enrichment MCP server — 60M companies, 300M contacts, buying intent signals.

Sales IntelligenceFree
EnrichAPI

Open source lead intelligence API — company URL in, structured outreach brief out.

Sales IntelligenceFree
Fire Enrich

Open-source AI data enrichment engine — a self-hosted alternative to Clay.

Sales IntelligenceFree
SiteEnrich

Website enrichment API that turns any URL into clean JSON — company name, emails, socials, and business signals.

Sales IntelligencePaid
HG Insights
MCP

B2B technographics and revenue intelligence platform.

Sales IntelligenceFree
Versium
MCP

B2B2C identity resolution and data enrichment platform.

Sales IntelligenceFree
Interseller

Email finder and verification platform for outbound sales.

Sales IntelligenceFree
Derrick

B2B data enrichment platform for sales intelligence.

Sales IntelligenceFree
Brandfetch

Company logos and brand assets API for B2B personalization.

Sales IntelligenceFree
CompanyEnrich

Company data enrichment API for B2B sales and prospecting.

Sales IntelligenceFree
Vainu

Company data and prospecting intelligence platform for B2B sales.

Sales IntelligencePaid
Clay
MCP

The universal data enrichment and outbound orchestration platform.

Sales IntelligencePaid
Clearbit (Breeze)

Real-time company and person enrichment API by HubSpot.

Sales IntelligencePaid
Clodura.AI

All-in-one sales intelligence with form enrichment and cleanup APIs.

Sales IntelligenceFree
Coresignal
MCP

B2B data and web scraping API for large-scale market intelligence.

Sales IntelligencePaid
Crunchbase

The definitive B2B database for company and investment research.

Sales IntelligencePaid
CUFinder

B2B data enrichment API with 20+ endpoints for company and person data.

Sales IntelligenceFree
Datagma

B2B data enrichment with 50+ attributes.

Sales IntelligenceFree
Dropcontact
MCP

AI-powered email enrichment and verification API for B2B data.

Sales IntelligenceFree
Enrich.so

People and company data enrichment API.

Sales IntelligenceFree
ExactBuyer

AI-driven B2B prospecting and data enrichment platform.

Sales IntelligenceFree
Explorium

External data platform for automated lead enrichment and scoring.

Sales IntelligencePaid
FullContact

Identity resolution and data enrichment platform for customer intelligence.

Sales IntelligencePaid
LeadMagic

AI-powered data enrichment and contact validation platform.

Sales IntelligenceFree
Octolane

AI-powered prospecting and CRM data enrichment for modern sales teams.

Sales IntelligenceFree
Orbitly

Enrich your contact lists with email and social data.

Sales IntelligencePaid
People Data Labs

B2B data API with 3 billion person and company records.

Sales IntelligenceFree
PredictLeads

Company intelligence data API for funding, jobs, and tech.

Sales IntelligenceFree
Proxycurl

API for scraping and enriching LinkedIn profile data.

Sales IntelligenceFree
Saber

AI-powered signal intelligence API for GTM teams.

Sales IntelligenceFree

Support & Guidance

Clearbit Alternatives FAQ

01

How many of these alternatives have MCP support?

12 out of 39 tools offer MCP server support: Crustdata, Signaliz, LeadMagic, DataLayer, Bytemine, and 7 more. MCP lets your AI agent connect with zero configuration — just paste the config into Claude Desktop or Cursor.
02

Which alternatives have a free tier?

26 out of 39 tools offer a free tier: Crustdata, Signaliz, LeadMagic, StackSwap, EnrichmentAPI, DataLayer, EnrichAPI, Fire Enrich, and 18 more. Free tiers are useful for prototyping agentic workflows before committing to a paid plan.
03

What API types do these alternatives support?

The alternatives use REST, CLI APIs. REST is the most common format across all tools, making them compatible with standard HTTP clients and AI agent frameworks.
04

How many support webhooks for real-time events?

23 out of 39 tools support webhooks. Webhooks let your AI agent react to events (new lead, updated contact, deal stage change) without polling — critical for building responsive automation.