MCP server

Callin.io AI Voice Agents Official

io.callin/callin

Checked 26 Oct 2026, 08:29 UTC · It answered and asked for a sign-in

Access your Callin.io AI phone agents, call history and transcripts from any AI assistant.

Signs in with your accountVerified publisher: callin.io

https://claude-mcp.callin.io/mcp

At a glance

Type: MCP server
Publisher: callin.io (verified by the MCP Registry)
Status: Signs in with your account
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http callin https://claude-mcp.callin.io/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.callin]
url = "https://claude-mcp.callin.io/mcp"

Gemini CLI

{"mcpServers":{"callin":{"httpUrl":"https://claude-mcp.callin.io/mcp"}}}

Cursor

{"mcpServers":{"callin":{"url":"https://claude-mcp.callin.io/mcp"}}}

VS Code

{"servers":{"callin":{"type":"http","url":"https://claude-mcp.callin.io/mcp"}}}

Antigravity

agy mcp add callin https://claude-mcp.callin.io/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"callin","server_url":"https://claude-mcp.callin.io/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"callin","server_url":"https://claude-mcp.callin.io/mcp"}

Signs in with your account: your agent app opens a sign-in page the first time you use it.

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AI phone calls from your verified number, with answers, transcripts and recordings.
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Phone Bud
AI voice agents that make real phone calls: single calls or campaigns, with transcripts and notes.
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Give your AI a real phone: place calls, send SMS, fetch recordings and transcripts. Local or hosted.

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