Communication
Best Voice APIs in 2026
- 01
Callr From €599/mo Free trial Web · iOS · Android · API9.0 Visit Specs - 02 D7 Networks
It suits teams needing programmable SMS, WhatsApp messaging, number lookup, or verification, with SDKs and listed integrations for connecting to other services.
Free plan Web · API8.9 Visit Specs - 03
46elks From €3/mo Free plan Web · API8.7 Visit Specs - 04
Telnyx SIP Trunking It suits businesses needing global voice calling and PSTN connectivity, including enterprises.
From $500/mo Free plan Web · iOS · Android · API8.6 Visit Specs - 05
Aculab Cloud Aculab Cloud suits businesses building communications applications with APIs rather than specialist telephony equipment.
Free trial Web · iOS · Android · API8.3 Visit Specs - 06
CallFire API CallFire API suits developers integrating CallFire telephony into CRM platforms, mobile apps, or backend website systems.
From $99/mo Free plan API8.2 Visit Specs - 07
Wazo Platform Wazo suits developers building communication infrastructure or services to fit business and technical requirements.
Free plan Web · Linux · iOS · Android8.2 Visit Specs - 08
Plivo Voice API It suits developers building voice calling into web or mobile applications, including teams that need SIP support, call recording, or multiple call-handling features.
From $0.01/mo Free trial Web · iOS · Android · API8.1 Visit Specs - 09 Asterisk
It suits teams building communications systems that can work with Linux, scripting, networking, and telephony.
Free plan Linux · API · Self-hosted8.0 Visit Specs - 10
FreeSWITCH FreeSWITCH suits teams building voice or video communication products that need call routing, protocol connections, or media processing.
Free plan Windows · macOS · Linux · API8.0 Visit Specs - 11
Infobip Voice API The Calls API suits developers building voice applications for mobile or web.
Free trial Web · iOS · Android · API7.9 Visit Specs - 12
Amazon Chime SDK PSTN Audio Web · Windows · iOS · Android7.8 Visit Specs - 13
Kamailio Free plan Linux · API · Self-hosted7.8 Visit Specs - 14
Amazon Chime SDK Voice Connector Web · API · Self-hosted7.5 Visit Specs - 15
SIP.IO SIP.IO is intended for developers, BPOs and contact centers, and resellers or white-label operators.
Free plan Web · API7.4 Visit Specs - 16 Commio Voice API API7.0 Visit Specs
- 17 Kaleyra Voice API API6.9 Visit Specs
- 18
Orange Voice API API6.9 Visit Specs - 19
Telnyx Voice API From $500/mo Free plan Web · iOS · Android6.9 Visit Specs - 20 YateClient Windows · macOS · Linux · iOS6.9 Visit Specs
- 21 8x8 CPaaS Voice Web6.0 Visit Specs
- 22 Apifonica Voice API Web6.0 Visit Specs
- 23 Bird Voice API Web6.0 Visit Specs
- 24 EnableX Voice API Web · iOS · Android6.0 Visit Specs
- 25
Azure Communication Services SMS 5.9 Visit Specs