Switch to AgentData
The free Clearbit alternative
AgentData is a completely free Clearbit alternative. No credit card, no HubSpot lock-in, no paid tiers — free forever with 1,000 lookups per day. It provides tech stack detection for 130M+ companies, 8M+ verified emails, and real-time switch signals, while Clearbit is now bundled into HubSpot's paid platform.
Clearbit was absorbed into HubSpot. AgentData is independent, API-first, and built for AI agents. Tech stacks, emails, switch signals — completely free with no platform lock-in.
Clearbitvs AgentData — quick facts
AgentDataClearbit
Starting price
FreeHubSpot bundle
Platform lock-in
NoneHubSpot ecosystem
MCP server
Yes — nativeNone
Switch signals
Real-timeNone
Feature comparison
Feature
AgentData
Clearbit
Data
Tech stack detection
845 technologies
Basic technographics
Switch signals
Real-time
None
Company enrichment
130M+ companies
Large database
Independence
Standalone product
Part of HubSpot
AI agent access
MCP server
Native
None
REST API
All plans
HubSpot API only
Platform lock-in
None
HubSpot ecosystem
Built for AI agents
MCP Server
Connect Claude, GPT, or any MCP-compatible agent directly.
npx agentdata-mcp-server --api-key YOUR_KEYREST API
JSON responses. Standard HTTP. Works with any language.
GET /api/v1/lookup?domain=stripe.comWeb Search
130M+ company pages, publicly browsable, no login required.
agentdata.run/company/stripe.comPricing comparison
AgentData
Free
Free
Marketing Hub
HubSpot bundle
HubSpot bundle
Lookups/mo
1,000
Varies
REST API
Yes
Varies
MCP server
Yes
No
Tech stacks
845
Limited
Switch signals
Yes
No
CSV export
Yes
Varies
Public data pages
Free
No
Frequently asked questions
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Company intelligence for AI agents and growth teams. Completely free.