Signal House provides SMS, MMS, group messaging and programmable voice APIs. It supports 10DLC, toll-free and short code messaging, with APIs for phone numbers, brand and campaign registration, and webhooks. Authentication uses JWT bearer tokens, including service-user API keys. APIScout has not independently measured uptime, latency or deliverability.
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US local 10DLC outbound SMS rates in USD, checked November 8, 2026. Carrier fees, phone numbers and A2P registration charges are additional. MMS, toll-free, short code and voice pricing differ. Rates depend on volume and agreement terms; confirm current pricing with Signal House.
$0.0065 per outbound segment
$0.0050 per outbound segment
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