Auth Directory
Bearer Token APIs
Connecting your AI agent? These tools use Bearer Token auth, making them easy to use with Claude Code and Gemini CLI.
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Argyle
The leading employment data platform for income and employment verification.
Calendly
Scheduling automation platform with a robust API.
Clearbit (Breeze)
Real-time company and person enrichment API by HubSpot.
Common Room
The intelligent customer platform for modern GTM teams.
Coresignal
B2B data and web scraping API for large-scale market intelligence.
Findymail
Success-based email finder and verification API for B2B prospecting.
Firecrawl
Turn any website into LLM-ready Markdown or structured JSON.
HubSpot
All-in-one CRM platform with an extensive API ecosystem.
Inbox
The unified API and MCP server for managing X (Twitter) DMs.
Kaspr
LinkedIn-first B2B contact data retrieval and prospecting tool.
Klue
Competitive intelligence and win-loss insights platform with a robust API.
Linkup
Web search API for AI apps with real-time grounding and source citations.
Retell AI
The platform for building high-performance conversational AI voice agents.
RevReply
AI-powered email outreach with calendar booking.
Saber
AI-powered signal intelligence API for GTM teams.
Vapi
Developer platform for building voice AI agents.
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