Connect Claude to Hail over MCP
Add Hail to Claude as a remote connector. Your agent gets call, SMS, and email tools when Claude reconnects.
Works in Claude.ai (Web), Claude Desktop, and Claude Code.
Setup
1
Add Hail to Claude
Add the Hail MCP server with the snippet below. In claude.ai, open Settings, then Connectors, then Add custom connector.
claude.ai, custom connector URL
https://mcp.hail.so
Claude Code, terminal
claude mcp add --transport http hail https://mcp.hail.so
2
Approve access and send a test prompt
Reload the client. On first use, the client opens a browser tab. Sign in to Hail or create an account. Click Allow. Then send the prompt below. The setup works if Hail places the call or sends the message.
"Use hail to call my agent and ask for a status update."Notes
Claude.ai and DesktopOpen Settings, then Connectors, then Add custom connector. Name: Hail. Paste the URL. Click Add, then Connect.
OAuth fieldsLeave Client ID and Secret empty. Discovery is automatic.
Claude CodeRun the command above. Authenticate via /mcp, or run claude mcp login hail.
One accountConnectors added on claude.ai also appear in Claude Code.
ScopesDefault: this project. --scope user: all your projects. --scope project: shared .mcp.json.
PlansAll plans. Free: one connector. Team/Enterprise: an org Owner adds it first.
Auth headerDo not set one. It blocks the OAuth flow.
PrivacyHail does not receive chat history. Hail receives only tool arguments.
ManageRevoke or manage this app at hail.so/console/apps.
Self-hostSet HAIL_API_KEY as the bearer. See docs/mcp.
Place your first call from Claude
Self-host with your own carrier, or use a managed number from Hail.
