CallFire API vs Plivo Voice API
CallFire API
developers.callfire.com
Plivo Voice API
plivo.comSide by side
| Figure | CallFire API | Plivo Voice API |
|---|---|---|
| Price from | $99/mo | $0.01/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Plans published | 5 | 3 |
| Spec score · Voice APIs | 8.2 (#6) | 8.1 (#8) |
| Compliance | CallFire describes its developer software as including compliance solutions and lists Do Not Call list management among its features. | Plivo lists SOC 2 certification, HIPAA/HITECH compliance, PCI DSS Level 1 compliance, and GDPR compliance. |
| Headquarters | Los Angeles, California, United States | Austin, Texas, USA |
| Integrations | The API can be used to integrate existing CRM platforms, mobile apps, or backend website architecture with CallFire telephony solutions. | Listed integrations include Microsoft Power Automate, Zapier, n8n, Pipedream, Tray, and EngageBay for voice and other Plivo communication workflows. |
| Security | CallFire says communications between its endpoints and customer applications use HTTPS with TLS, and webhook calls use SSL certificates. | Plivo says customer data is logically separated, encrypted in transit with TLS 1.2 or greater, and encrypted at rest with AES-256. |
| Support | The API features page says support is available 24/7 through its support page. | Plivo says it responds to priority 1 business-critical incidents around the clock, 365 days a year. |
Plans
CallFire API
- Pay as you goFree
- Lite$99 a month
- Startup$199 a month
- Grow$299 a month
- Pro$599 a month
Plivo Voice API
- Pay as you goPriced on request
- Voice API pay as you go$0.01 a month
- Enterprise$1,000 a month
In their own words
CallFire API
CallFire API v2 is a REST API for connecting applications to CallFire telephony services. It accepts requests from any HTTP client and returns JSON, with support for individual and broadcast text and voice messaging. Developers can use webhooks for notifications such as campaign events and incoming texts. The documentation also covers contacts, phone number and keyword ordering, a sound library, short codes, and action states and results. Listed service features include campaign management, scheduling controls, call recording, and real-time reporting. SDKs are listed for Java,.NET, JavaScript, Python, and PHP; the JavaScript, Python, and PHP SDKs are marked beta. API access uses separately generated HTTP Basic Authentication credentials, so standard CallFire interface credentials do not work for API access. CallFire says API communications use HTTPS with TLS and webhook calls use SSL certificates. The service lists Do Not Call list management, 24/7 support, and advertised 99.95% uptime. Calls and texts stop when an account allowance reaches zero, and additional credits can be purchased at 6¢ per credit. Plans include Pay as you go at free, Lite at $99 a month, Startup at $199 a month, Grow at $299 a month, and Pro at $599 a month.
Plivo Voice API
Plivo Voice API lets web and mobile applications make and receive calls programmatically, play audio, record conversations, and build interactive voice applications. It connects calls across PSTN, SIP, and WebRTC endpoints. Features include queues, conferences, text to speech, dual-channel recording, DTMF input, speech recognition, answering machine detection, voicemail transcription, and custom caller ID. Its Audio Streams API sends raw audio from active calls over WebSocket for transcription, voice AI, analytics, or custom processing. Plivo lists SDKs for Python, Node.js, Ruby, PHP, Java,.NET, and Go, along with integrations including Zapier, n8n, Pipedream, Tray, EngageBay, and Microsoft Power Automate. The service is listed for Android, iOS, web, and API. The Voice API pay-as-you-go plan is listed at $0.01 a month; call routes and features have separate rates. Calls are billed in 60-second increments. Pay-as-you-go accounts receive $10 in free credits without a credit card. Plivo was founded in 2011 and is headquartered in Austin, Texas.