Retell AI MCP Server
by mindstoneio.github.mindstone/mcp-server-retell-aiv0.3.0
Retell AI MCP server: voice agent phone calls, agent management, LLMs, and voice discovery
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Active10d ago
Install Retell AI MCP server
Install in Claude Code
claude mcp add retell-ai -e RETELL_API_KEY='<retell-api-key>' -- npx -y @mindstone/mcp-server-retell-aiInstall in Cursor
{
"mcpServers": {
"retell-ai": {
"command": "npx",
"args": [
"-y",
"@mindstone/mcp-server-retell-ai"
],
"env": {
"RETELL_API_KEY": "<retell-api-key>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"retell-ai": {
"command": "npx",
"args": [
"-y",
"@mindstone/mcp-server-retell-ai"
],
"env": {
"RETELL_API_KEY": "<retell-api-key>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"retell-ai": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@mindstone/mcp-server-retell-ai"
],
"env": {
"RETELL_API_KEY": "<retell-api-key>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"retell-ai": {
"command": "npx",
"args": [
"-y",
"@mindstone/mcp-server-retell-ai"
],
"env": {
"RETELL_API_KEY": "<retell-api-key>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| RETELL_API_KEY | yes | yes | Retell AI API key (from retellai.com/dashboard) |
| MCP_WORKSPACE_PATH | — | — | Optional workspace directory for local files uploaded as knowledge-base sources. File reads are sandboxed to this directory (defaults to the system temp directory when unset). |
Freshness
Active — last maintenance signal 10d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-09-29 · 10d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-08-05 · 2mo ago · official registry · v0.3.0
FAQ
›How do I install the Retell AI MCP server in Claude Code?
Run: claude mcp add retell-ai -e RETELL_API_KEY='<retell-api-key>' -- npx -y @mindstone/mcp-server-retell-ai. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Retell AI require an API key?
Yes. It expects RETELL_API_KEY, of which 1 is a secret.
›Can I use Retell AI as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Retell AI in the official MCP registry?
Yes, as io.github.mindstone/mcp-server-retell-ai.