Twilio alternatives: SMS, voice and AI calling APIs
Updated Nov 9, 2026. Listed A to Z, not ranked. Prices change often: confirm with each provider.
Twilio is the best-known programmable SMS and voice API. If you want a different price structure, a carrier-owned network or a platform that handles AI phone calls end to end, these are the options in our directory, A to Z.
Published US prices are first for reference. Full breakdowns: Twilio pricing, Plivo pricing, Telnyx pricing; head-to-head: Telnyx vs Twilio.
Published US messaging prices (for reference)
| Provider | Published pricing | Notes |
|---|---|---|
| Plivo | SMS $0.0077 (long code), $0.0079 (toll-free); long code number $0.50/mo | Pay as you go with $10 free credits; Enterprise from $1,000/mo |
| Twilio | SMS $0.0083 per segment; local number $1.15/mo; voice from $0.0140/min outbound | Carrier and 10DLC fees extra; $15 trial credit |
Quoted from each provider’s official pricing page on Nov 9, 2026.
SMS, voice and AI calling tools in our directory (5)
| Tool | What it does | How you pay | Published price | Links |
|---|---|---|---|---|
| Bland AI | Platform for building and running AI phone agents that make and answer calls, with self-hosted speech and language models. | Card / subscription | Start $0.14/min talk time, $0 platform fee; Build $0.12/min + $299/mo platform fee; Enterprise custom. Checked Nov 6, 2026 on bland.ai/pricing. (checked 2026-11-06) | Listing · Pricing |
| Retell AI | Voice AI agents for phone calls: answer, qualify and book appointments, with call testing, analytics and webhooks. | Card / subscription | Pay as you go from $0.07–$0.31/min for AI voice agents ($10 free credits); chat agents from $0.002+/msg; Enterprise custom. Checked Nov 6, 2026 on retellai.com/pricing. (checked 2026-11-06) | Listing · Pricing |
| Synthflow | Voice AI platform for automating inbound and outbound business phone calls at enterprise scale. | Card / subscription | Enterprise contracts start at $30,000 per year (per its pricing page). (checked 2026-10-22) | Listing · Pricing |
| Telnyx | Telecom carrier offering voice, messaging and AI infrastructure for real-time agents on its own network. | USDC per call (x402) | $0.002–$0.018 per call (listing) (checked 2026-10-22) | Listing · Pricing |
| Vapi | Developer platform to build, test and deploy voice AI agents, choosing your own transcriber, model and voice providers. | Card / subscription | $5 free credits; Vapi hosting $0.05/min prepaid; provider costs pass through; Core $29/mo; Pro 10% of hosting fee with $999/mo minimum. Checked Nov 6, 2026 on vapi.ai/pricing. (checked 2026-11-06) | Listing · Pricing |
Choosing an alternative
- Raw SMS and voice: Plivo and Telnyx sell the same building blocks (numbers, messages, minutes) with their own rates.
- AI phone agents: Bland AI, Retell AI, Synthflow and Vapi run voice agents that place and answer calls; see AI voice tools and Retell AI vs Bland AI.
- Pay per call in USDC: Telnyx also has an x402 endpoint that agents can pay without an account.
FAQ
- What is a good Twilio alternative?
- It depends on what you build. Plivo and Telnyx offer SMS and voice APIs; Bland AI, Retell AI, Synthflow and Vapi focus on AI phone agents. We list them A to Z, not ranked.
- How much does Twilio charge per SMS?
- $0.0083 per segment in the US, plus carrier fees (twilio.com, Nov 9, 2026). Plivo listed $0.0077 on long codes.
Sources (read Nov 9, 2026): www.twilio.com/en-us/sms/pricing/us · www.plivo.com/sms/pricing/us/
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