A real inbox
for tests & agents.

# 1. Add MailSink to your Claude Desktop / Cursor / Claude Code config
{
  "mcpServers": {
    "mailsink": {
      "command": "npx",
      "args": ["-y", "@mailsink/mcp"],
      "env": { "MAILSINK_API_KEY": "msk_REPLACE_ME" }
    }
  }
}

# 2. Ask Claude:
# "Create a MailSink inbox, wait for the verification email, return the OTP."

// 1. Provision a temp inbox
const { id, address } = await fetch("https://api.mailsink.dev/v1/inboxes", {
  method: "POST",
  headers: { Authorization: `Bearer ${process.env.MAILSINK_API_KEY}` },
}).then((r) => r.json());

// 2. Drive your signup / verification flow (send mail to `address`)

// 3. Pull the OTP
const { code } = await fetch(
  `https://api.mailsink.dev/v1/inboxes/${id}/latest-code`,
).then((r) => r.json());

import os, requests
H = {"Authorization": f"Bearer {os.environ['MAILSINK_API_KEY']}"}

# 1. Provision a temp inbox
inbox = requests.post(
    "https://api.mailsink.dev/v1/inboxes", headers=H,
).json()

# 2. Drive your signup / verification flow (send mail to inbox["address"])

# 3. Pull the OTP
code = requests.get(
    f"https://api.mailsink.dev/v1/inboxes/{inbox['id']}/latest-code", headers=H,
).json()

# 1. Provision a temp inbox
curl -X POST https://api.mailsink.dev/v1/inboxes \
  -H "Authorization: Bearer $MAILSINK_API_KEY"

# 2. Drive your signup / verification flow (send mail to the address)

# 3. Pull the OTP
curl https://api.mailsink.dev/v1/inboxes/$INB/latest-code