Important account updates. Clear communication.

Connect account events to SMS and email notifications, security alerts, and verification flows with Blocx. Review your use case and data requirements.

Give customers timely information about account activity while keeping sensitive data out of message bodies.

Help customers understand account activity and act through trusted channels, without putting sensitive financial details into a notification.

Account moments that need a clear explanation

Customers see activity without enough context

An unexpected sign-in or an account change needs a clear explanation and a trusted place to review it.

Operational notices create avoidable uncertainty

A payment exception or required account action can be difficult to resolve when the message does not say what the customer should do next.

The notification becomes another data exposure

Messages that include account numbers, balances, or private transaction detail can create risk outside the authenticated product.

Give each account event a trusted next step

Follow each stage from the event in your system to the message your customer receives and the next action in your product.

Surface an unfamiliar sign-in

Connect your own risk or account event to a concise security notice that sends the customer back to the account directly.

Your event
New account sign-in
Channel
SMS

A new sign-in was detected on your account. Open your account directly to review recent security activity.

Next step: Review the security event in the authenticated product.

Make account changes visible

Notify customers after your system confirms a relevant settings change, without repeating the changed private information in the message.

Your event
Account settings changed
Channel
SMS

Your account settings changed. Sign in directly to review them. If this was not you, use your account's support options.

Next step: Review account settings or begin your support process.

Give an operational exception a next step

Use a generic notice to direct the customer to the actual issue inside the account, where your product can explain it securely.

Your event
Account action required
Channel
SMS

Your account needs attention. Sign in directly to review the update and available next steps.

Next step: Resolve the action through your secure application.

Support a verification step in your own flow

Deliver a code through the documented Verify service while keeping identity, transaction, and risk decisions inside your application.

Your event
Customer requests a verification code
Channel
SMS

Your verification code is 123456. Do not share this code.

Next step: Submit the code through your application's verification screen.

Delivery feedback inside account operations

Start with the event and data policy

Define which account events qualify, who should receive a notice, and what information must remain inside the authenticated product.

Send a focused notification

Submit only the message content required for the action. Keep credentials on the server and associate the message identifier with the originating event.

Process receipts without making risk assumptions

Use documented delivery feedback in your operational records. Do not treat message delivery or possession of a code as a complete identity or financial risk decision.

Keep sensitive information in the account

Minimize financial information

Keep account identifiers and sensitive transaction details out of examples and default message content.

Use a trusted account destination

Make the requested action clear and keep sensitive review and resolution inside your authenticated experience.

Review requirements before production

Evaluate consent, carrier rules, data handling, and applicable financial-services obligations with your compliance team.

Integration requirements

Review applicable financial-services rules, consent, carrier eligibility, and data-handling requirements with your own compliance team. No financial compliance certification is represented.

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Discuss your use case

Financial-services integration questions

Does this page establish financial compliance certification?

No. These are integration patterns, not a financial compliance certification or a claim that a specific regulated workload has been approved. Review your actual requirements and intended data with your compliance team and Blocx before use.

Should a message contain balances or full transaction details?

Prefer a minimal notice that directs the customer to the authenticated account. Your organization must determine which data can be transmitted and under what controls for its particular obligations.

Can Blocx make the fraud or account-access decision?

Your systems make those decisions. Blocx delivers supported notifications and verification messages; it does not replace your risk engine, identity checks, or authorization policy.

How does the account team see delivery progress?

Correlate the documented message identifiers and delivery events with your account records. Build your own operational views and support actions from that evidence rather than assuming submission means delivery or action.

Make an important account event easier to understand.

Bring the event, intended recipient, data policy, and desired customer action. Review the requirements before designing the production notification.

Talk to Sales

Brand identity

Blocx is the programmable messaging product from OtterBlocx, LLC, headquartered in Cheyenne, Wyoming, United States.

Channels

  • Live today: SMS, MMS, RCS, Email, Telegram.
  • Blocx also offers separate Voice services: VoIP, voicemail, call routing, 2FA via AI caller, and a voice dialer. These are not channels on the messaging or Verify API.

Plans

  • Starter — self-serve, 14-day free trial, then $49/month credited toward usage. SMS $0.0079/segment, email $0.001/email (1 sending domain), 1 API key. No MMS, RCS, Telegram, SHAFT or restricted verticals. Trial includes dashboard and sandbox access; sends only to your own verified number, with a trial prefix and no 10DLC registration. Add a card to start the paid plan and message customers; on day 14 without a card, the account locks.
  • Scale — $1,000/month minimum platform spend (starts on day 31; no minimum for the first 30 days), on an annual contract. Every channel and route type at the published rate card — all rates listed on this site are Scale rates. Signup starts with a call. Required tier for SHAFT and other restricted verticals.
  • Volume — custom volume-based pricing negotiated on your traffic profile. Contact sales.

Published rate card (+ carrier passthrough on SMS/MMS)

  • SMS: 10DLC $0.0045, toll-free $0.0055, short code $0.007.
  • MMS: 10DLC $0.0135, toll-free $0.016, short code $0.018.
  • RCS: $0.0135/msg + one-time $1,000 setup fee.
  • Email: $0.0002 per email, flat.
  • Verify: $0.035 per successful verify, flat.
  • Telegram: $0.0045/msg, flat.