The AI Agent Index

HubSpot Sales Hub

by HubSpot

★4.3

HubSpot's sales platform with Breeze AI agents for prospecting, deal coaching, and forecasting. Free tier; Starter $15/seat/month; Professional $100/seat/month; Enterprise $150/seat/month, all billed annually.

Apollo.io

by Apollo

★4.7

B2B sales intelligence platform with 275M+ contacts, AI email sequencing, and autonomous outreach. Free plan; paid from $49/user/month. Used by 600,000+ companies.

Instantly AI Sales Agent

by Instantly

★4.5

Fully autonomous outbound sales agent: reads your website, identifies your ICP, finds prospects from 450M+ contacts, writes personalized emails, handles replies. Outreach from $47/mo, Credits from $47/mo.

lemlist

by lemlist

★4.4

Multichannel outreach platform covering cold email, LinkedIn, calling, SMS, and WhatsApp with AI-generated personalization. Email from $55/user/month annual. SOC 2 Type II.

Make.com

by Celonis (Make)

★4.6

Visual workflow automation platform with advanced branching and data manipulation: connects 3,000+ apps with a drag-and-drop scenario builder. MCP server included. Free tier; paid from $9/month.

Close CRM

by Close

★4.7

Inside-sales CRM with built-in calling, SMS, email, and Chloe AI sales agent on every plan. Solo $9; Essentials $35; Growth $99; Scale $139 per seat/mo annual. 100+ integrations.