1. Create an account#

Create your InboxTron account, then open Mailboxes and create a hosted inbox. Hosted addresses use @inbox.inboxtron.com.

2. Create an API token#

Open API keys & account, create a token, and copy it when it is shown. Send the token as a Bearer token on API requests.

Authorization: Bearer YOUR_API_TOKEN

3. List your mailboxes#

curl https://inboxtron.com/api/v1/mailboxes \\
  -H "Authorization: Bearer YOUR_API_TOKEN"

Copy the mailbox id you want to use.

4. Send an email#

curl -X POST https://inboxtron.com/api/v1/mailboxes/MAILBOX_ID/messages \\
  -H "Authorization: Bearer YOUR_API_TOKEN" \\
  -H "Content-Type: application/json" \\
  -d '{"to":"person@example.com","subject":"Hello","text":"Sent by my agent."}'

5. Receive and read#

Send an email to the mailbox address, then list its messages through the API or use the InboxTron MCP tools.

Next steps#

Use MCP when your agent supports Model Context Protocol, read the REST API for endpoints, or connect a custom domain.