A Firebase Phone Auth alternative for verification

Firebase Phone Auth is convenient if you're all-in on Firebase, but it couples verification to its SDK, reCAPTCHA flow and per-verification pricing — and it's awkward to test.

When an OTP API fits better

• You want backend-controlled verification, not a client SDK + reCAPTCHA.
• You need global coverage and per-delivered-code pricing with refunds.
• You want to test the flow in CI with disposable numbers.

curl -X POST https://api.eveses.com/api/v1/numbers/orders \
  -H "Authorization: Bearer $KEY" \
  -d '{"country":"us","mode":"activation","service":"yourapp"}'

You issue the number, send your own SMS or receive the target's code, and verify server-side — no vendor lock-in on the client. Keep Firebase for the rest of your stack if you like; verification doesn't have to live there.

Ready to build? Create a free Eveses account, top up a wallet, and grab your API key — no KYC. See the API docs or live pricing.