[angeltech2026]

Hi HN,

  I built this because I was working on an AI agent that needed to create
  accounts on various websites, but kept getting stuck at phone verification.

  Existing SMS APIs (Twilio Verify, etc.) are designed for YOU to verify
  YOUR users. I needed the opposite - my agent needed to receive OTPs.

  So I built Agent OTP:

    POST /api/v1/numbers/rent        → Get a phone number
    POST /api/v1/numbers/{n}/wait-for-otp → Wait for SMS (with timeout)
    DELETE /api/v1/numbers/{n}       → Release when done

  That's basically it. The agent gets a number, uses it to sign up somewhere,
  waits for the OTP, and releases the number.

  Stack: FastAPI + PostgreSQL on Railway, Twilio for SMS, LemonSqueezy for
  payments. Landing page on Cloudflare Pages.

  Pricing: 5 free OTPs/month, then $9/50, $29/200, $49/500.

  Site: https://agentotp.angletech.io
  Docs: https://agentotp.angletech.io/docs/

  Happy to answer questions about the implementation or the surprisingly
  annoying edge cases with SMS delivery timing.