How to migrate from Twilio to Infobip

Twilio is a publicly traded customer-engagement platform based in San Francisco, and Infobip is a privately held omnichannel communications platform based in Vodnjan, Croatia (EU). Both expose SMS, voice, email, and chat-app APIs over REST, so this migration is mostly remapping requests rather than rethinking your architecture. On the messaging.dev Score, Twilio rates 88/100 and Infobip rates 96/100; this guide covers what actually changes when you move an existing Twilio integration across.

What changes, and what doesn’t

Channels you gain. Infobip adds Viber, Facebook Messenger, Telegram, and Apple Messages for Business on top of everything Twilio offers. You lose no channels: SMS, MMS, RCS, WhatsApp, voice, and email are supported on both.

Compliance and data residency. These are a wash. Both carry GDPR, ISO 27001, SOC 2, and HIPAA alignment, and both offer EU and US servers with a data-residency choice. Infobip lists additional regional coverage (APAC, Latin America, Middle East, Africa) versus Twilio’s Australia, and reaches 190 countries to Twilio’s 180.

Pricing. This is the biggest practical difference. Twilio is pay-as-you-go with a published rate (from $0.0079 per US SMS segment). Infobip is primarily quote/contract-based — SMS pricing is not publicly listed, so you contact sales for a rate. Both offer free trial credit; Twilio specifies $15, while Infobip’s amount is not published.

SDKs, sandbox, docs. Both ship Node.js, Python, PHP, Java, C#, and Go SDKs, both provide a sandbox, and both rate “high” on docs quality. The one gap: Twilio also ships a Ruby SDK; Infobip does not. Infobip additionally exposes SMPP alongside REST and SMTP.

How the request format differs

Twilio:

curl -X POST 'https://api.twilio.com/2010-04-01/Accounts/ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/Messages.json' \
  --data-urlencode 'To=+15551234567' \
  --data-urlencode 'From=+15005550006' \
  --data-urlencode 'Body=Hello from Twilio' \
  -u ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:your_auth_token

Infobip:

curl -X POST 'https://xxxxxx.api.infobip.com/sms/2/text/advanced' \
  -H 'Authorization: App YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json' \
  -d '{"messages":[{"from":"InfoSMS","destinations":[{"to":"15551234567"}],"text":"Hello from Infobip"}]}'

Three things change:

• Endpoint. Twilio embeds your Account SID in the path (.../Accounts/{AccountSid}/Messages.json). Infobip uses a per-account subdomain — https://{base_url}.api.infobip.com/sms/2/text/advanced — so read your base_url from the dashboard.
• Auth. Twilio uses HTTP Basic auth (Account SID as username, Auth Token as password, sent with -u). Infobip uses an API key in a header: Authorization: App {api_key}.
• Payload. Twilio takes form-urlencoded fields: To, From, Body. Infobip takes a JSON body where the recipient is nested in messages[].destinations[].to, the sender is messages[].from, and the message text is messages[].text. Note the recipient format too: Twilio’s example uses E.164 with a leading +, while Infobip’s omits it.

Migration checklist

1. Create an Infobip account (self-onboarding, free trial credit) and generate an API key from the dashboard. See how to start with Infobip.
2. Copy your account base_url subdomain.
3. Map the request fields: To → destinations[].to, From → messages[].from, Body → messages[].text, and switch from form-urlencoded to a JSON body.
4. Swap auth from HTTP Basic (-u SID:token) to the Authorization: App {api_key} header.
5. Re-point your sending code to the new base URL, or switch to Infobip’s SDK for your language.
6. Re-test against Infobip’s sandbox before sending live traffic.
7. Re-register your delivery/status webhooks against Infobip’s callback format.
8. Run both integrations in parallel and reconcile delivery reports.
9. Cut over once the numbers match.

Watch out for

• No published SMS price. Infobip pricing is quote-based; you cannot self-serve a rate like Twilio’s $0.0079 per segment — contact sales for a quote.
• Trial credit amount isn’t listed. Twilio states $15; Infobip’s free-credit amount is not published.
• No Ruby SDK. If your integration is in Ruby, you drop to raw REST or a community library, whereas Twilio ships an official one.
• Recipient formatting. Infobip’s example omits the leading + that Twilio’s E.164 numbers use — confirm the expected format before you send.

For a full side-by-side, see the Infobip vs Twilio comparison.