Verification codes and magic links, handled by your agent

Sign-up flows stop at “check your email”. With smails the agent has an inbox of its own, so it can read the code and keep going.

The flow

Create a mailbox and use the address in the sign-up form.
Wait for the email — one call that returns as soon as it arrives.
Read the code or the link from the body and continue.

From an MCP client

Connect the MCP server, then ask your agent something like: “Sign up for the newsletter at example.com with a smails address and confirm it.” It will call create_mailbox, fill in the form, call wait_for_message and open the confirmation link.

From a script

terminal

ADDRESS=$(smails create)
# … submit $ADDRESS to the sign-up form …
smails wait --subject code --json | jq -r .text | grep -oE '\b[0-9]{6}\b' | head -1

Good to know

Receive-only: smails cannot send mail.
Some sites block disposable domains. smails cannot work around that.
Use it for accounts you control and testing your own flows.