Twilio (voice and SMS) by Twilio
Phone numbers, voice calls and SMS through one API; the usual phone line for voice agents.
＋ Build a stack with Twilio (voice and SMS) Website Official pricing GitHub
Price
$8.3 / 1k requests
list price
Free tier
No
SDK downloads
8.9M
npm twilio · PyPI twilio
Status
—
no public status page
How Twilio (voice and SMS) compares
Twilio (voice and SMS) is one of 19 APIs in the SMS, chat and notifications category on AgentGid. At $8.3 per 1,000 requests it is the 9th cheapest of the 9 that publish a per-request price (cheapest: Telnyx, $0.003). It is not among the 13 that can be started for free. 3 of them ship an official MCP server; Twilio (voice and SMS) does not. Its official SDK is the 1st most downloaded in the category (8.9M a week). See the full table.
Pricing
| Free tier | — |
|---|---|
| Cheapest paid plan | — |
| Usage price | US: calls $0.0140/min out, $0.0085/min in (local number $1.15/mo); SMS $0.0083 per segment |
| Good to know | Free trial with $15 to buy a phone number and test Voice (a trial, not a free tier). SMS prices from https://www.twilio.com/en-us/sms/pricing/us; additional carrier fees may apply. |
From the official pricing page, checked Oct 22, 2026. Prices change: confirm before you buy.
Use it from an agent
| MCP server | No MCP server found |
|---|---|
| npm | npm install twilio |
| PyPI | pip install twilio |
| GitHub | twilio/twilio-node · 1,543 stars · last push Oct 22, 2026 |
Alternatives to Twilio (voice and SMS)
| API | Free | Price | SDK downloads / wk | GitHub stars | MCP |
|---|---|---|---|---|---|
| Telnyx Converts text to speech using multiple voice engines and models. |
— | $0.003 / 1k requests | — | — | |
| Svix Webhook infrastructure service for sending, receiving, and testing webhooks at scale. |
Up to 50k messages per month | $0.1 / 1k requests · free tier | 4.4M | 3,459 | |
| Stream Video & Audio API API for video calls, live streaming, and audio rooms with global edge network. |
$100 in free credits per month | $0.12 / 1k requests · free tier | 339K | 19 | |
| Gupshup (WhatsApp API) Send WhatsApp messages via API for marketing, utility, authentication, and service. |
First 1,000 service messages free | $1 / 1k requests · free tier | — | — | |
| OneSignal Multi-channel messaging platform for push, email, SMS, and in-app notifications. |
10,000 email sends/month, mobile push up to... | $1.5 / 1k requests · free tier | — | — | |
| Vonage SMS API Send and receive SMS globally via API, part of Vonage Communications APIs. |
— | $2.5 / 1k requests | 147K | 399 | MCP |