Retell AI MCP Server
MCP server for Retell AI — a platform for building AI-powered voice agents and phone call automation. Enables AI agents to interact with Retell AI's API — creating voice agents, initiating calls, monitoring call status, retrieving transcriptions, and managing voice AI workflows for customer service, sales, and communication automation.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Voice call data is sensitive. TCPA/GDPR compliance required. API key auth. HTTPS. US data residency.
⚡ Reliability
Best When
A team building AI phone agents with Retell AI wants to integrate call initiation, agent management, and analytics into their MCP-based AI orchestration system.
Avoid When
You use other voice AI platforms (Vapi, Bland, Eleven Labs). Community tool — not official Retell AI integration. Voice AI carries compliance considerations (TCPA, GDPR).
Use Cases
- • Creating and configuring Retell AI voice agents from AI orchestration systems
- • Initiating outbound calls via Retell AI phone agents from automation workflows
- • Retrieving call transcriptions and analytics from reporting agents
- • Managing Retell AI voice agent configurations from DevOps agents
Not For
- • Teams not using Retell AI platform
- • Simple text-based chatbots without voice requirements
- • High-volume production calling without proper compliance review
Interface
Authentication
Retell AI API key required. Generate in Retell AI dashboard.
Pricing
Retell AI API has per-minute call pricing. MCP server is free open source community tool.
Agent Metadata
Known Gotchas
- ⚠ Voice calling has regulatory compliance requirements — TCPA consent for outbound calls is critical
- ⚠ Call initiation has real costs — test thoroughly with low volumes before automation
- ⚠ Community tool — not official Retell AI SDK, may lag behind Retell API changes
- ⚠ Call transcriptions contain sensitive voice data — handle per applicable privacy laws
Alternatives
Full Evaluation Report
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Scores are editorial opinions as of 2026-03-07.