Disposable inbound-OTP email API

Disposable email for
verification codes, via API.

OneForMail instantly issues a disposable email address for your sign-up, verification and OTP flows, then reads the incoming code over an API. No outbound mail — inbound OTP only. You only pay for codes you actually receive.

Get started API docs

OTP in ~80s Prepaid USD balance Charged only for successful OTPs

example.sh

# 1) Get a disposable email address (holds from balance)
curl "https://oneformail.com/get_mail?api-key=$KEY&domain=mail&from=twitch.tv"
# → { "mail": "abc@mail.com", "charged": 0.002 }

# 2) Read the incoming OTP (captured once the code arrives)
curl "https://oneformail.com/get_otp?api-key=$KEY&mail=abc@mail.com"
# → { "subject": "522322 - Your code", "pending": false }

How it works

Inbound OTP in three steps

Get a mail address

A /get_mail call issues a disposable email address for your target site and reserves $0.002 from your balance.

Read the OTP

/get_otp scans the inbox for ~80s and returns the verification code. The charge is captured once the code arrives.

Pay only on success

If no code ever arrives, /release or an automatic TTL frees the hold. You only pay for the OTPs you receive.

Pricing

$0.002 / successful OTP

Pay as you go. No monthly fees or commitments. If the code never arrives, /release refunds your balance. Prepaid USD balance, topped up with USDT-TRC20.