D7 Networks

Overview

D7 Networks is a business messaging service with APIs for SMS, WhatsApp, Viber, number lookup, and verification. It is best suited to teams connecting messaging to customer workflows, particularly when WhatsApp chatbots or number checks are part of the job. The breadth is useful, though usage-based charges and the absence of a free plan make cost planning important.

Key features

The SMS API sends single or bulk messages in any language to mobile networks worldwide. Two-way messaging, inbound SMS, contact management, and delivery reports support services that need to handle replies and track delivery, not just send outbound alerts. Batch processing, scheduling, status webhooks, request validation, and higher throughput make the API a stronger fit for operational workflows than a basic text-sending tool.

D7’s no-code WhatsApp chatbot builder covers automated customer service, appointment management, feedback collection, and lead qualification. ChatGPT integration, interactive buttons and flows, a shared inbox, templates, and analytics give teams tools to manage conversations without building every interaction themselves. That is a substantial draw for WhatsApp-led support; teams that need only SMS may find this breadth unnecessary.

The Number Lookup API checks whether a number is valid and reachable, and returns its country code and carrier. D7 also provides 2FA verification and WhatsApp Business messaging. Its SDKs for Python, Ruby, Node.js, PHP, and Go, plus integrations with n8n, Make, Monday.com, Zoho CRM, Zapier, and others, help connect messaging to existing systems. OAuth 2.0 bearer tokens, TLS and SSL support, and stated encryption at rest and in transit address API security; D7 says it is ISO/IEC 27001:2022 certified. API support is available 24/7 through web chat, Skype, and WhatsApp.

Pricing

D7 has no free plan, but offers a free trial. Its model is paid, with several services priced per use, so expected message and lookup volume matters more than a single subscription figure.

• SMS API & Broadcast — Local: custom pricing for usage-based local SMS API and broadcast messaging. Best suited to teams that need local sending at variable volumes.
• SMS API & Broadcast — International: custom pricing for usage-based international SMS API and broadcast messaging. The destination mix and volume should inform cost planning.
• Number Lookup: free, billed Starts at $0.0012 /Lookup; volume discounts are available. New users receive 10 test credits with unlimited validity. This is the clearest low-commitment way to evaluate number checks, though ongoing use is metered.
• Verify API — Local: $0.01, paid once, billed $0.008 /SMS for local verification SMS.
• WhatsApp Business API: $0.01, paid once, billed $0.005 (Platform fee) / Business Initiated Message; Meta Fee+. The platform fee is only part of the stated charge, so buyers should account for the additional Meta fee.
• Verify API — International: $0.02, paid once, billed $0.015 /SMS for international verification SMS.

The per-use plans suit teams that can forecast traffic and prefer charges tied to activity. They provide no free tier for ongoing use, and the SMS API plans use custom pricing, so buyers seeking a fixed subscription cost should compare expected volumes before committing.

Platforms

D7 supports API and web access. Its SDKs span five programming languages, giving development teams options for integrating the APIs; the web chatbot tools also suit teams managing WhatsApp conversations without coding each workflow.

Who it's for

D7 fits businesses that need more than one messaging function: global SMS, verification, number intelligence, or WhatsApp customer service in connected workflows. It is particularly relevant to teams already building around APIs and to support groups that want a WhatsApp inbox and automation tools. It is a weaker fit for individuals or small senders who need a free allowance or a simple fixed-price SMS service.

Pros and cons

• Pros: SMS, verification, number lookup, and WhatsApp chatbot tools cover several business messaging needs in one service.
• Pros: Batch processing, scheduling, webhooks, and SDKs support integration into more involved API workflows.
• Pros: Ten Number Lookup test credits have unlimited validity, so evaluation does not depend on a short trial window.
• Cons: There is no free plan, which leaves low-volume users without an ongoing no-cost option.
• Cons: Usage-based charges and custom-priced SMS plans make total costs dependent on traffic and destinations.
• Cons: The WhatsApp Business price includes a Meta fee in addition to the platform fee, complicating a platform-fee-only comparison.

Alternatives

Choose SMSBOX if Windows support or a small set of one-off test credits for a verified number better suits your setup. Consider Android SMS Gateway when an Android-based option and a free tier are priorities; its free plan is limited to one device, 300 lifetime SMS, and 300 contacts. FoxText is a free option for personal texting, with limits including a restricted number of texts and 120-character messages in the composer.

Messente is another paid API and web service with a free plan and access to SMS, WhatsApp, and Viber. playSMS is free and open source, but requires a separate SMS gateway to send and receive messages. Choose simhook if its free tier or self-hosted option fits your preferred setup; the free tier allows 30 messages a day, 500 a month, one phone, and 25 recipients per send. Telerivet has a free plan capped at 50 messages a day, 50 stored contacts, and two automated services, which may suit smaller workloads. Textmagic is another paid API and web option with a free trial; its Essential plan is prepaid and rates vary by destination country.

For category comparisons, browse SMS Gateway Software and Transactional SMS Software.

Verdict

Choose D7 Networks if your business needs API-connected messaging across SMS, verification, number lookup, and WhatsApp automation, and can manage usage-based pricing. Its strongest reason to choose is the range of tools and integration options; its main drawback is the lack of a free plan and the need to budget around per-use fees. For a free ongoing tier or a narrowly focused SMS tool, another service is a better fit.