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Best Voice APIs in 2026

52 apps
Research read 23 Sept 2026
How the order is worked out

1

Aculab Cloud

Free plan AndroidAPIiPhone+2

Aculab Cloud offers a broad set of communications APIs and a free Trial for development. Check the outbound rate limit and unsupported premium-rate calls against the intended use.

7.7 Visit site
2

Asterisk

Free plan APILinuxSelf-hosted

Asterisk provides a broad framework for building communications systems, with multiple interfaces and VoIP protocols.

7.4 Free plan Visit site
3

FreeSWITCH

Free plan APILinuxMac+2

FreeSWITCH provides a no-cost, self-hostable framework with call-control and integration options.

7.3 Free plan Visit site
4

Kamailio

Free plan APILinuxSelf-hosted

7.1 Free plan Visit site
5

Wazo Platform
by Wazo Platform
Free plan AndroidAPIiPhone+3

Choose Wazo Platform if you need a free, self-hosted and programmable foundation for telecom services.

6.9 Open source Visit site
6

SIP.IO

Free plan APIWeb

SIP.IO combines programmable voice and contact center features, with options for messaging, recording, and AI-assisted calls.

6.8 Free plan Visit site
7

YateClient

Free plan AndroidiPhoneLinux+2

Choose YateClient if you want a free desktop messenger and softphone with chat features and multiple telephony protocols. For SIP calling, you need an account with a SIP provider.

6.6 Free plan Visit site
8

Callr

Free trial AndroidAPIiPhone+1

Callr combines programmable communications, tracking, conversation intelligence, and AI agents for business workflows.

6.4 From €599/mo Visit site
9

Infobip Voice API

Free trial AndroidAPIiPhone+1

Infobip provides a broad set of programmable voice functions and connectivity options, with tools for both developers and business users.

6.2 60-day trial Visit site
10

Plivo Voice API

Free trial AndroidAPIiPhone+1

Plivo Voice API combines call handling, recording, and streaming audio with developer SDKs and integrations.

6.1 Visit site
11

Amazon Chime SDK PSTN Audio

Paid AndroidAPIiPhone+2

6.0 Visit site
12

D7 Networks

Free trial APIWeb

D7 Networks combines messaging APIs with WhatsApp chatbot and number lookup tools. Buyers should account for usage-based messaging and the listed per-message fees when considering its paid service.

6.0 Visit site
13

Amazon Chime SDK Voice Connector

Paid APISelf-hostedWeb

5.9 From $0.00 Visit site
14

drachtio

Free plan Linux

5.9 Free plan Visit site
15

Telnyx SIP Trunking

Free trial AndroidAPIiPhone+1

Telnyx combines SIP connectivity with calling safeguards, a range of integrations, and usage-based calling rates.

5.9 Visit site
16

46elks

Paid APIWeb

46elks brings SMS, MMS, and voice features under one API, with SDKs and integrations for application workflows.

5.8 Visit site
17

Fonoster

Free plan Web

5.8 Free plan Visit site
18

jambonz

Free plan Web

5.8 Free plan Visit site
19

sipgate.io

Free plan Web

5.7 Free plan Visit site
20

CallFire API

Paid API

CallFire API combines messaging, calling and event notifications with multiple SDK options and documented authentication requirements.

5.5 From $1/mo Visit site
21

Commio Voice API

Paid API

5.4 Pricing on request Visit site
22

Kaleyra Voice API

Paid API

Choose Kaleyra Voice API if your business needs programmable inbound and outbound calling, broad country coverage, and integrations with business platforms.

5.2 Pricing on request Visit site
23

Orange Voice API

Paid API

5.2 Pricing on request Visit site
24

Apifonica Voice API

Paid Web

4.7 Pricing on request · 30-day trial Visit site
25

EnableX Voice API

Paid AndroidiPhoneWeb

4.7 30-day trial Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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