YOUR AGENT. YOUR WORKSPACE.

Talk to Mason.

Connect your agent to manage email, domains, and signatures.

Connect your agent

OAUTH CONNECTION

Paste this into an agent app that supports custom MCP connections.

Your connection prompt

Connect me to Mason. Read https://mason.red/llms.txt, then create a custom MCP connector named Mason at https://mason.red/api/mcp using Streamable HTTP and OAuth. Open Mason's sign-in and approval flow; I will approve Set up domains, and Manage DNS if I use Namecheap. Do not ask me to paste passwords or tokens. Once connected, call mason_start. Use mason_setup_domain to configure my project domain, asking for the domain and mailbox name if I have not specified them. Show me the exact DNS records still needed and verify published DNS before claiming setup is complete. If this app cannot add a custom MCP connector, tell me the exact step I need to perform.

Your agent starts OAuth. Sign in to Mason, select Set up domains, and approve the connection.

Set up a domain

Tell your agent the domain and mailbox you want, like hello@example.com. Mason guides it through ownership, DNS and mailbox setup.

DNS changes need access to your domain provider. Your agent will show the exact records.

Manage your inbox

After setup, approve the new inbox and ask your agent to organize mail, design a signature, or send from an approved address.

You choose each permission. Revoke connections anytime in Talk to Mason.

Already adding a connector?

Use these settings in your agent app. OAuth opens Mason's approval screen.

MCP server URL

Server name: Mason
Transport: Streamable HTTP
Authentication: OAuth

Codex CLI and technical details

codex mcp add mason --url https://mason.red/api/mcp
codex mcp login mason

After approval, reload MCP servers if tools are missing. Start with mason_start; use mason_setup_domain for domain setup.

Read agent instructions · Connection metadata · OAuth discovery

If your app cannot add custom MCP connectors, it needs that feature before connecting. A prompt cannot install a connector in an unsupported app.