46elks

46elks is a telecom API for developers who need SMS, MMS and programmable calling in application workflows. It is best suited to teams that want one phone-number and API layer across messaging and voice, rather than a standalone campaign tool. The trade-off is usage-based billing, a 100-message-per-minute default and support that is strongest during Swedish business hours.

Overview

46elks, made by 46elks AB in Uppsala, Sweden, has operated since 2011. Its API lets applications send SMS, receive inbound messages through webhooks, exchange MMS and automate phone calls. SMS and calling use the same API, and a phone number can support both, which reduces the need to coordinate separate communications providers.

The service is governed by EU ePrivacy rules as implemented in Swedish law and by Swedish telecom-agency rules. All servers are in Sweden and owned by 46elks, a useful consideration for organizations that prefer a Swedish-hosted service. Standard support is by phone and email on workdays from 09:00 to 16:00 CET, with a best-effort response typically within 60 minutes; failure reporting is available 24/7.

Key features

SMS covers outbound delivery and forwarding incoming SMS to a backend with webhooks. MMS supports sending and receiving images and long texts, and incoming messages can include GPS location markers. That combination fits alerts, two-way service workflows and media-rich field operations better than a send-only notification API.

Voice tools include automated calls, programmatic call forwarding, programmable IVR and call recording. Teams can therefore build phone trees, routed support calls or automated voice notifications alongside texts. Short codes are supported. SMS-ready numbers are offered in 48 countries, while landline numbers are offered in more than 30; country-specific availability and pricing still need to match your rollout.

SDKs cover C#, Java, PHP, Python, Ruby, Node.js and Elixir. Integrations include Zapier, GitHub Actions, Homey, Sigfox, Laravel, Node-RED, Flow XO, FileMaker, WordPress and Google Sheets. Those options make it practical to connect existing automation and web stacks without writing every integration from scratch.

The default SMS sending rate is 100 messages per minute. Higher speeds can be arranged by contacting the company, so high-volume senders should treat the default as an initial ceiling rather than an assured throughput level. A test SMS to +46700000000 exercises the API without sending a real message or charging the account.

Pricing

46elks has no free plan and no free trial. Pricing is usage-based, with phone numbers charged separately where stated. Prices exclude VAT on the United Kingdom SMS plan.

Receive SMS is economical for inbound traffic only when the required number cost is acceptable. The United Kingdom call plans suit predictable voice routing, while mobile calls are substantially more expensive than landlines. Pay-as-you-go SMS avoids a subscription but bills each message part, so long texts can raise the effective cost. Virtual-number pricing makes the number type a material budget decision.

Platforms

46elks is available through an API and web interface. Its language SDKs and integrations support both conventional application development and no-code or workflow-based setups.

Who it's for

Choose 46elks when one implementation must handle two-way SMS, MMS media, inbound webhooks and programmable voice, especially if Swedish hosting and EU telecom compliance are important. It is less suitable for organizations seeking a free evaluation period, a free tier, or guaranteed high-volume throughput without a separate capacity discussion.

Pros and cons

Pros

• Unified channels: SMS and voice share one API and phone numbers, simplifying multichannel workflows.
• Rich inbound handling: Webhooks, MMS images, long texts and GPS markers support interactive use cases.
• Broad developer coverage: Seven SDK languages and numerous automation integrations reduce integration friction.
• Swedish infrastructure: Swedish-owned servers and EU/Swedish telecom regulation may fit privacy-conscious deployments.

Cons

• No free entry point: There is neither a free plan nor a free trial for evaluation.
• Throughput constraint: SMS defaults to 100 messages per minute unless a higher rate is arranged.
• Support window: Standard phone and email help is limited to workdays, 09:00–16:00 CET.
• Variable usage costs: Number fees, per-part SMS billing and much higher mobile-call rates complicate forecasting.

Alternatives

ClickSend SMS API is the better fit when you want a free trial, mobile and desktop clients, or prepaid pay-as-you-go plans.

Mailchimp suits email-led marketing teams that can work within a free plan capped at 250 contacts and 500 emails per month.

Bandwidth Messaging API is worth considering for U.S.-specific 10DLC or short-code SMS pricing and a free trial.

Telnyx SMS API is an alternative for API/web deployments without a free trial and with carrier fees potentially added to usage.

Textmagic fits teams wanting Android, iOS and web access, a free trial and prepaid SMS billing.

Bird Verify is aimed at verification workflows where the verification feature is included and channel messages are charged.

Clickatell SMS API offers prepaid messaging and a free trial for teams focused on outbound SMS.

D7 Networks is another usage-based SMS API and broadcast option with a free trial.

For a wider shortlist, see Transactional SMS Software.

Verdict

46elks is a strong choice for developers building applications that need SMS, MMS and voice together, particularly when Swedish infrastructure, webhooks and broad SDK support matter. Look elsewhere if a free trial, free tier, workday-independent support or a simpler high-volume pricing model is essential.