Telnyx—Voice AI Agents with Built-In Global Telco Infrastructure

# Telnyx > Carrier-owned global communications platform for voice AI agents, SIP trunking, programmable voice, SMS/MMS, and AI inference. Single vendor for the full voice-AI stack on a Tier-1 network across 40+ countries. ## Products - **Voice AI Agent** — bundled SIP + STT + LLM + TTS at $0.05/min - **Programmable Voice** — $0.002/min platform fee (additive on SIP) - **Messaging** — SMS, MMS, 10DLC, RCS in 100+ countries - **SIP Trunking** — outbound from $0.005/min, STIR/SHAKEN A-level - **Phone Numbers** — local, toll-free, mobile in 40+ countries - **AI Inference (x402)** — pay-per-call USDC on Base, no signup ## Pricing Headline rates. Full table at [/pricing.md](https://telnyx.com/pricing.md), machine-readable at [/ai/pricing.json](https://telnyx.com/ai/pricing.json). - SMS from $0.004 per outbound message (+ carrier fees) - SIP Trunking from $0.005/min outbound, $0.0032/min inbound - Voice API $0.002/min platform fee (additive on SIP) - Voice AI Agent (bundled) $0.05/min - TTS from $0.000003/char; HD voices $0.000048/char - STT $0.015/min (Telnyx, Deepgram); $0.017/min (Google, Azure) - US local numbers from $0.79/month - x402 inference $0.001 USDC per call ## Use cases Production workloads agents and teams ship on Telnyx. Drill into [/solutions/llms.txt](https://telnyx.com/solutions/llms.txt) for industry playbooks. - **Voice AI agents** — bundled SIP + STT + LLM + TTS at $0.05/min for healthcare reminders, financial alerts, retail returns, travel bookings. - **Pay-per-call AI inference** — agents call [x402.telnyx.com/v1/chat/completions](https://x402.telnyx.com/v1/chat/completions) with no signup; USDC settles on Base mainnet at $0.001/call. - **Programmatic SMS/MMS at scale** — 10DLC, toll-free, short codes, A2P messaging in 100+ countries with delivery receipts. - **Carrier-grade SIP trunking** — outbound voice termination with STIR/SHAKEN A-attestation and per-second billing, no per-channel fees. - **Number provisioning + porting*