Telnyx Review

Telnyx is a licensed telecommunications carrier selling programmable SMS, MMS and voice messaging through a developer API. The headline rate is $0.004 per message part for Local/10DLC outbound, but carrier passthrough adds about $0.0038 per part, making the real cost roughly $0.0078 at 1 million parts monthly. No free trial exists. Captured 2026-09-09.

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Telnyx pricing

Telnyx charges $0.004 per message part for Local/10DLC outbound on pay-as-you-go with no minimum commitment, but US carrier passthrough fees of about $0.0038 per part are billed separately, bringing the real cost to roughly $0.0078 all-in per part at 1 million parts monthly.

These rates were captured on 2026-09-09 from Telnyx’s published pricing page. Volume discounts apply automatically at 100 million parts for Local/10DLC outbound, but that first discount band is unreachable for most buyers. Short codes cost $1,000 per month, vanity short codes $1,500 per month, with a $500 one-time setup fee. Local numbers start at $1 per month plus $0.10 for SMS and MMS capability.

Telnyx pricing page, captured through a US proxy, September 9, 2026.

Telnyx features

Telnyx provides a developer-focused messaging platform with a REST API at https://api.telnyx.com/v2. The platform supports scheduled SMS and MMS delivery, two-way messaging, and inbound message handling. MMS is available alongside standard SMS. Number types include short codes, 10DLC local numbers, and toll-free numbers.

The API ships with 7 SDKs covering Python, Node.js, Java, Ruby, Go, .NET and a CLI tool. Documentation includes an OpenAPI 3.1 specification and 207 production Python code examples. Integrations cover Salesforce, HubSpot, Zapier, Make, Microsoft Teams, Zoom Phone, Amazon Chime, Asterisk, FreeSWITCH, FreePBX, Kamailio, 3CX, Talkdesk, UJET, Genesys, Dialogflow, OpenAI, LiveKit, LangChain, Vercel AI SDK, Pipecat, Calendly, Shopify, Stripe and MCP.

Telnyx does not publish an email-to-SMS feature. No SMS body-template store exists. The platform asserts SMPP 3.4/5.0 support in a machine-readable file, but SMPP appears zero times in Telnyx’s messaging documentation, pricing sheet or API endpoints, so no documented bind host, port or credential flow exists.

Telnyx reliability and compliance

Telnyx publishes a 99.99% uptime figure in a machine-readable file, but the file labels it as a historical observed metric rather than a contractual promise. Telnyx’s Terms and Conditions contain zero occurrences of “SLA”, “uptime” or “99.9” across 82,117 characters and disclaim availability on an “AS IS” and “AS AVAILABLE” basis. A custom SLA only appears from the $500 per month Committed plan upward, with SLA credits available only on the $5,000 per month Enterprise plan.

Telnyx owns its carrier network with 45+ carrier licenses and 25+ points of presence. 10DLC registration is direct to carriers with no intermediary CSP. Toll-free verification is self-service via API or portal, with a stated typical 5-business-day approval turnaround and no published verification fee. Short codes are supported and priced.

Compliance certifications are self-asserted only. Telnyx’s compliance file claims SOC 2 Type I, Type II and a non-existent “SOC 2 Type III”, which the AICPA does not define, all active with identical dates. The ISO 27001 claim references the superseded 2013 edition with “ISO” wrongly named as the certification body. HIPAA compliance is claimed as a BAA availability, but the file names “HHS” as the certification body, which certifies no HIPAA scheme. Treat these as uncorroborated.

At capture on 2026-09-08, Telnyx’s status page showed “Partial System Degradation” with an open outbound-messaging delay incident raised 2026-09-02 and still monitoring six days later.

Telnyx support

Telnyx offers in-portal live chat through the Mission Control Portal, email at [email protected], telephone support, a support-center knowledge base and a public Slack community. The marketing claim is “24/7 award-winning support”.

Support is tiered by spend. Pay-as-you-go accounts receive community support, the Committed plan at $500 per month receives priority support, and the Enterprise plan at $5,000 per month receives 24/7 premium support. Phone numbers sit under “Talk to a product expert” for sales rather than under the support contact block, which offers only portal chat and the knowledge base.

Documentation lives at developers.telnyx.com and is unusually deep, with a full messaging documentation tree, an OpenAPI 3.1 specification and agent-readable llms.txt files.

Telnyx alternatives

Bandwidth owns its own IP network rather than reselling carrier capacity, making it a similarly carrier-direct choice for buyers who want infrastructure ownership and native E911 access.

Plivo positions itself as a simpler alternative with a smaller API surface and no-code Zentrunk tooling, for teams that want less raw-API complexity than Telnyx’s message-part and carrier-passthrough billing.

Twilio is the largest CPaaS by ecosystem size, with the broadest third-party integration marketplace and a no-code Studio flow builder, for teams prioritizing tooling breadth over carrier-direct pricing transparency.

Telnyx verdict

Pros

• Entry rate of $0.004 per message part with $0 minimum commitment and $0 platform fee
• Complete 5,946-rate machine-readable pricing sheet plus a live pricing API
• 7 SDKs and 207 production Python code examples
• 45+ carrier licenses and 25+ points of presence on its own network
• 148 Trustpilot reviews in the last 12 months with active public replies

Cons

• Real cost roughly doubles the headline rate when carrier passthrough of about $0.0038 per part is added
• No credited SLA on the entry plan, and zero SLA language in the Terms and Conditions
• Compliance file lists a non-existent “SOC 2 Type III” certification
• No published free trial or trial credit anywhere
• Status page showed active degradation at capture, with an incident running six days

Telnyx suits developers and technical teams building programmable SMS, MMS and voice messaging through an API who want direct carrier ownership and transparent machine-readable pricing. It suits high-volume senders who can clear 100 million parts per month for Local/10DLC discounts, or short-code senders above 500,000 parts per month. Telnyx does not suit non-technical marketers wanting a drag-and-drop campaign builder or contact-list manager, because none is documented. It does not suit buyers who need a contractually credited SLA without paying at least $500 per month, or compliance-sensitive buyers who need corroborated HIPAA, SOC 2 or ISO 27001 certification.

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