
Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
Callr records 2,657 monthly visits with -45.2% month-over-month growth and Free Trial, Paid pricing. Salesforce Agentforce (formerly Einstein) records 111,910,743 monthly visits with +2.2% growth and Freemium pricing.

API-first voice, SMS and AI conversation intelligence platform
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | callr.com | salesforce.com |
| Pricing Model | Free Trial, Paid | Freemium |
| Monthly Visits | 2.66K (2,657) | 111.91M (111,910,743) |
| MoM Traffic Delta | -2.19K (-45.2%) | +2.4M (+2.2%) |
| Primary Market & Share | 🇮🇳 India (68.8%) | 🇺🇸 United States (43%) |
| Direct Visits / mo | 1.04K | 60.74M |
| User Rating | 4.2 | 4.4 |
| Supported Platforms | Website | Website |

API-first voice, SMS and AI conversation intelligence platform
REST API, webhooks and serverless flows for inbound and outbound voice, SMS, email and IVR across 220+ countries on Callr's own carrier network.
Automatic transcripts, AI summaries, sentiment, intent, satisfaction scoring and campaign attribution generated from each call with prompts you control.
Low-code flow builder for agents that answer, qualify, book and resolve calls end to end, escalating to a human when it matters.
Connect GPT, Claude, Mistral, Llama or a private in-house model so extraction logic and data residency stay under your control.
Autonomous enterprise AI agents and CRM intelligence powered by Salesforce Data 360 and Atlas.
Deconstructs complex queries into multi-step action plans grounded in Data 360, retaining state across days or weeks to complete multi-touch operational workflows with human escalation guardrails.
Configure custom agents, subagents, natural-language instructions, and deterministic guardrails using existing Salesforce Flows, Prompt Builder templates, Apex code, and MuleSoft APIs.
Coordinate specialized subagents across departments and connect securely to external enterprise tools through verified Model Context Protocol (MCP) servers from AgentExchange partners.
Replace rigid telephone IVR trees with low-latency conversational voice agents alongside unified deployments across web chat, WhatsApp, SMS, mobile apps, and Slack.

Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
One API key for hundreds of AI models from every major provider

Free / Open-sourceAutomate work across thousands of apps — no code required

SpecialistExceptional customer support and helpdesk workflow automation, but less suited for broad enterprise CRM and sales execution.
SpecialistSuperior revenue intelligence and call analytics, but specialized for sales insights rather than general agentic workflow automation.
SpecialistSuperior revenue intelligence and call analytics, but specialized for sales insights rather than general agentic workflow automation.
SpecialistVisual no-code builder for custom AI agents, but lacks Salesforce's native enterprise data connectors and CRM structure.
SpecialistVisual no-code builder for custom AI agents, but lacks Salesforce's native enterprise data connectors and CRM structure.

Real-time voice AI models and agents you can build on
Modern customizable CRM with built-in AI agents, but lacks the massive enterprise ecosystem and scale of Salesforce.
Real-time speech-to-text, text-to-speech and voice agents in one API platform
Real-time speech-to-text, text-to-speech and voice agents in one API platform

AI communication platform for sales and support teams
Build, test, and deploy production-grade voice AI agents over API