# Callsy.ai > AI voice agent platform that lets any AI agent make real phone calls. MCP-native. Trusted by 397+ Shopify merchants. Callsy.ai is an AI voice agent platform built for developers, e-commerce merchants, and automation agencies. Our flagship product is an abandoned cart recovery agent for Shopify that has proven to recover 32% more abandoned carts. Our MCP (Model Context Protocol) integration allows AI agents — Claude, OpenClaw, GPT, and any MCP-compatible client — to trigger real phone calls programmatically using natural language. ## Core Products - [Callsy MCP Integration](https://callsy.ai/mcp): Connect any AI agent to real phone calls via three MCP tools: `create_agent`, `initiate_call`, and `get_call_status`. Five-minute setup. No telephony expertise required. - [Shopify Abandoned Cart Recovery](https://callsy.ai): AI voice agent that calls customers who abandon their cart within minutes. Automatically. +32% recovery rate across 397+ live merchants. - [Agency Voice AI](https://callsy.ai/mcp): White-label voice AI solution for marketing and automation agencies to offer AI-powered phone outreach as a premium client service. ## MCP Tools Callsy exposes three MCP tools that any compatible AI agent can use: - `create_agent`: Create a voice agent with custom personality, script, guardrails, and tone of voice. Configured via natural language. - `initiate_call`: Trigger a real phone call to any phone number using your configured voice agent. Supports context passing (e.g., abandoned cart details, lead information). - `get_call_status`: Check call outcome, retrieve full transcript, sentiment analysis, and next-step recommendations. ## Key Capabilities - Natural language configuration — describe your agent and call scripts in plain English - Real-time call transcripts with sentiment analysis - Human handoff — warm transfer to a real person at any point during the call - Works with Claude, OpenClaw, GPT, Make, Zapier, and any MCP-compatible client - Shopify-native integration with automatic abandoned cart event sync - Multi-language support: English, German, Swedish, and expanding - Server-side execution — API keys and customer data never touch the agent's local environment ## Use Cases - **Abandoned Cart Recovery**: AI detects a Shopify abandoned cart and calls the customer within minutes. Offers help, answers questions, closes the sale. - **Lead Follow-Up**: AI agent calls new leads immediately after form submission or signup. Qualifies interest, books meetings, answers questions. - **Appointment Booking & Confirmation**: AI calls to confirm, reschedule, or remind customers of upcoming appointments. - **Customer Success Check-Ins**: Automated voice outreach to check in with customers, gather feedback, reduce churn. - **AI Agent Workflows**: Developers building autonomous agents with OpenClaw, Claude, or GPT can add voice calling as a native capability within any agentic workflow. ## Integration Examples ### Claude Desktop / Claude Code Add Callsy as an MCP server and your Claude agent can make phone calls: ``` "Call the customer who abandoned their cart 20 minutes ago. Offer free shipping if they complete checkout." ``` ### OpenClaw Callsy works as a voice skill for OpenClaw agents. Add the MCP integration and your autonomous agent gains the ability to create voice personas, dial real phone numbers, have full conversations, and report back with transcripts. ### Make / Zapier Trigger Callsy voice calls from any automation workflow. Connect a Shopify abandoned cart event, CRM update, or form submission to an automatic phone call. ## Company - **Founded**: 2025 - **Headquarters**: Europe - **Backed by**: Firstpick VC + 500 Global - **Valuation**: €1M+ - **Traction**: 397+ Shopify merchants, +32% abandoned cart recovery rate - **Website**: [https://callsy.ai](https://callsy.ai) - **MCP Integration**: [https://callsy.ai/mcp](https://callsy.ai/mcp) - **Documentation**: [https://callsy.ai/docs](https://callsy.ai/docs) ## Pricing Callsy offers three tiers with launch pricing at 70% off: - **Starter** ($29/mo): 100 calls/month, 1 voice agent, all MCP tools, call transcripts, email support - **Growth** ($79/mo): 500 calls/month, 3 voice agents, Shopify integration, advanced analytics, priority support - **Scale** ($199/mo): 2,000 calls/month, unlimited agents, white-label option, custom voice profiles, dedicated support All plans include MCP server access, call transcripts, sentiment reports, human handoff, and a 7-day money-back guarantee. ## Frequently Asked Questions **What is MCP?** Model Context Protocol is an open standard that lets AI assistants connect to external tools. Callsy uses MCP so any AI agent can trigger phone calls without custom API integration. **Does Callsy work with OpenClaw?** Yes. Callsy's MCP server integrates directly with OpenClaw agents as a voice skill. Your autonomous agent can create voice personas, initiate calls, and check outcomes within the agent loop. **Do I need to be a developer?** No. If you can type a sentence, you can use Callsy. Describe your call in plain English. For Shopify merchants, the integration is point-and-click. **What does the AI voice sound like?** Natural and conversational. Choose from multiple voice profiles and customize tone, pace, and personality to match your brand. **Is it secure?** Callsy runs entirely server-side. API keys, customer data, and call recordings never touch the agent's local environment. ## Contact - Website: https://callsy.ai - Email: hello@callsy.ai - X/Twitter: @callsyai - LinkedIn: linkedin.com/company/callsy-ai