Connect instantly, scale effortlessly, and deliver messages your audience will see.
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Text messaging is no longer just personal, it’s an essential business communication channel. From order updates and appointment reminders to promotional campaigns, reaching customers instantly makes a measurable difference.
Signalmash’s Text Messaging API lets you integrate SMS and MMS directly into your applications, websites, or services, giving you reliable, scalable communication that keeps your business connected.
Key Benefits:
Instant delivery of SMS and MMS messages
Reliable communication over Short Codes, 10DLC, and Toll-Free numbers
Compliant and carrier-approved messaging for US & Canada
10DLC (10-Digit Long Code) provides a trusted way for businesses to send high-volume messages using local phone numbers. With carrier approval, you get stronger deliverability, higher throughput, and built-in compliance, ideal for customer notifications, engagement, and marketing campaigns.
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Send and receive SMS and MMS using 8XX numbers designed for high deliverability and full regulatory compliance. Ideal for customer support, appointment reminders, and critical alerts, toll-free messaging ensures your business communications are trusted and consistent.
View MoreShort codes: 5 to 6-digit numbers, offer a powerful way to reach audiences at scale. They provide brand recognition, support high messaging volumes, and meet compliance standards, making them ideal for marketing campaigns, promotions, and customer engagement.
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Signalmash is more than a messaging API, it’s a partner-first CPaaS platform
built to deliver reliability, compliance, and speed for your communications.
Across the US and Canada
With apps, websites, and services
To meet high-volume demands
For 10DLC, Short Codes, and Toll-Free
An SMS API lets your application send and receive text messages programmatically over carrier networks. Signalmash's REST API supports SMS and MMS on 10DLC, toll-free and short code numbers, with delivery receipts, inbound webhooks and compliance handling built in.
Signalmash prices SMS on a single all-inclusive rate with no hidden carrier surcharges, and local 10DLC numbers start at $0.50 per month. Current per-message rates for SMS, MMS and RCS are listed on the pricing page, with volume discounts for high-volume senders.
Yes. US carriers require any business sending application-to-person SMS from a 10-digit local number to register its brand and campaign with The Campaign Registry. Signalmash completes the registration for you, typically within a few business days.
Use 10DLC for conversational and moderate-volume messaging from a local number, toll-free for nationwide notifications without campaign registration, and a short code when you need the highest throughput and deliverability for OTPs, alerts or mass marketing.
Take your customer engagement to the next level.
If you would rather see the request than read about it, the SMS API page shows the exact call — one authenticated POST to send an SMS or MMS — with curl, Python, Node and PHP examples, webhook setup for inbound messages and delivery receipts, and the number-provisioning endpoints.
Two things worth a minute before you build: our SMS character counter shows what a draft will actually cost in segments, and the A2P 10DLC requirements guide covers the registration that has to be in place before US carriers will deliver at volume.
