Places real phone calls for you in Japanese or English and returns the result and transcript.
Connect Remote server
claude mcp add --transport http callout https://mcp.callout.jp/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
{
"mcpServers": {
"callout": {
"url": "https://mcp.callout.jp/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
{
"servers": {
"callout": {
"type": "http",
"url": "https://mcp.callout.jp/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
Settings > Connectors > Add custom connector
URL: https://mcp.callout.jp/mcp
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
The tool list was not available in our last check.
Headers
| Name | Description |
|---|---|
AuthorizationOptional, secret | Optional. Clients that support OAuth sign in with a Callout account instead. Otherwise: Bearer followed by your Callout API key (co_sk_...), created at https://app.callout.jp/developer |
Details
| Endpoint | https://mcp.callout.jp/mcp (Streamable HTTP) |
| First published | 15 Nov 2026 |
| Last updated | 15 Nov 2026 |
| Registry name | jp.callout/callout |
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