GatewayAPI
The facts below are what the maker publishes about GatewayAPI, checked and dated. Our editors have not written about it yet.
Plans and prices
From GatewayAPI's own pricing page, checked 20 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| RCS Basic | €0.04, paid once | Price shown for HI3G operator · premium support available separately · Per RCS message/operator country |
| Pay-as-you-go SMS | Priced on request | Prices vary by country · virtual numbers may add monthly fees · Per message sent; no setup fee or default monthly subscription |
The facts
Each one read from GatewayAPI's own pages, with the date it was checked.
What it does
- Account controls
- Security add-ons include country and rate limits, IP whitelisting, and URL whitelisting.checked 9 Oct 2026
- API endpoint
- Message API calls use messaging.gatewayapi.com or messaging.gatewayapi.eu, protected by automatically renewed certificates.checked 20 Oct 2026
- API styles
- Documentation covers a modern Message API, a legacy REST API, SMPP for selected customers and Email APIs.checked 20 Oct 2026
- Availability
- GatewayAPI reports historical average uptime above 99.99 percent.checked 20 Oct 2026
- Code examples
- Official examples cover C#, cURL, Go, HTTPie, Java, Node.js, PHP, Python and Ruby.checked 20 Oct 2026
- Confidential messaging
- The Secret feature excludes message content, sender, and recipient from the traffic log and system storage.checked 9 Oct 2026
- Dashboard
- The service includes a customer dashboard with traffic logs, delivery tracking and multi-account administration.checked 20 Oct 2026
- Data retention
- The EU data-processing agreement says personal information is retained for up to 30 days after SMS shipment or receipt.checked 20 Oct 2026
- Developer access
- The documentation recommends its Message API for new customers sending SMS and RCS messages to phone numbers.checked 9 Oct 2026
- Documentation depth
- The documentation is searchable, example-rich, regularly reviewed and includes an OpenAPI specification for the Message API.checked 20 Oct 2026
- Email limitation
- Email messaging currently has no delivery reports, according to the help center.checked 20 Oct 2026
- Email services
- GatewayAPI provides REST email sending plus SMS-to-email and email-to-SMS services.checked 20 Oct 2026
- Email-to-SMS limitation
- Email-to-SMS is intended for low-volume one-to-one use rather than large bulk campaigns and limits messages to 20 SMS parts.checked 20 Oct 2026
- EU data residency
- Its EU setup keeps data storage with a cloud provider operating physically in the EU and owned by an EU company, with connections handled through EU telecommunications companies and A2P providers by default.checked 9 Oct 2026
- EU hosting
- An EU setup keeps hosting and ownership within the European Union for customers with regional data requirements.checked 20 Oct 2026
- Integrations
- Supported integrations include WordPress, Kannel, SMPP, Make and Zapier.checked 20 Oct 2026
- License
- GatewayAPI is a proprietary hosted service operated under ONLINECITY.IO terms; its published documents reserve software copyright to ONLINECITY.IO.checked 20 Oct 2026
- Limit: dashboard
- A G2 reviewer says the newer dashboard was still in beta and needed better filtering and analysis.checked 20 Oct 2026
- Limit: documentation
- One Software Advice reviewer wanted OpenAPI or Swagger documentation for the API.checked 20 Oct 2026
The company
- Company
- GatewayAPI is owned and operated by ONLINECITY.IO, which the company says has operated since 1999.checked 9 Oct 2026
- Company founding
- ONLINECITY.IO began in 1999 as a project founded by Thomas Hofmann and Ulrik Hoffmann.checked 20 Oct 2026
- Company ownership
- GatewayAPI is owned and operated by Danish company ONLINECITY.IO ApS.checked 20 Oct 2026
Money
- Free account
- Creating and maintaining a GatewayAPI account does not cost anything, while SMS traffic is billed separately.checked 9 Oct 2026
- Free plan
- Nochecked 24 Sep 2026
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