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CallFire API
Los Angeles, California, United States
What it is
CallFire API is a REST API for connecting applications to CallFire telephony services. API v2 accepts requests from any HTTP client and returns JSON. It supports individual and broadcast text and voice messaging, inbound and outbound calling, and webhooks for notifications such as campaign events and incoming texts. Other listed features include campaign management, scheduling, call recording, real-time reporting, and Do Not Call list management. Documentation covers contacts, number and keyword ordering, a sound library, short codes, and action states and results. API credentials are generated separately and use HTTP Basic Authentication; standard CallFire interface credentials do not work for API access. The developer site lists Java, .NET, JavaScript, Python, and PHP SDKs, with the last three marked beta. CallFire says API traffic uses HTTPS with TLS and webhook calls use SSL certificates. It advertises 99.95% uptime, 24/7 support, and messaging from one contact up to one million. Plans include Pay as you go at no cost, Lite at $99 a month, Startup at $199 a month, Grow at $299 a month, and Pro at $599 a month. Calls and texts stop when the account allowance reaches zero; extra credits cost 6¢ per credit. Plans include calls to the US and Canada, while international text messages are not supported.
For and against
For
- API v2 accepts any HTTP client and returns JSON.
- Supports individual and broadcast text and voice messaging.
- Webhooks notify applications about events and incoming texts.
- SDKs are listed for Java, .NET, JavaScript, Python, and PHP.
- 24/7 support is listed.
Against
- No free plan is available.
- API access requires separately generated credentials.
- Calls and texts stop when allowance reaches zero.
- International text messages are not supported.
The verdict
CallFire API provides messaging, calling, and event notifications through a REST interface, with documentation and SDKs for several languages. Check the allowance and geographic limits: service stops at zero allowance, and international texting is unsupported.
Who it suits
CallFire API suits developers integrating CallFire telephony with CRM platforms, mobile apps, or backend website architecture. It is relevant to teams building text or voice messaging workflows that can use a REST API and SDKs.
Plans and prices
Pay as you go
Optional monthly rentals · $10.00 phone numbers · $25 keywords
Read 8 Oct 2026 · callfire.com
Lite
2500 minutes/texts · Optional monthly rentals · $2.50 phone numbers · $20 keywords
Read 8 Oct 2026 · callfire.com
Startup
5500 minutes/texts · Optional monthly rentals · $2.25 phone numbers · $15 keywords
Read 8 Oct 2026 · callfire.com
Grow
10000 minutes/texts · Optional monthly rentals · $2.00 phone numbers · $13 keywords
Read 8 Oct 2026 · callfire.com
Pro
20000 minutes/texts · Optional monthly rentals · $1.75 phone numbers · $10 keywords
Read 8 Oct 2026 · callfire.com
On the record
- API type
- CallFire API v2 is a REST API that works with any HTTP client and returns JSON responses.developers.callfire.com · read 8 Oct 2026
- Authentication
- API v2 uses HTTP Basic Authentication with separately generated API credentials; standard CallFire UI credentials do not work as API credentials.developers.callfire.com · read 8 Oct 2026
- Compliance
- CallFire describes its developer software as including compliance solutions and lists Do Not Call list management among its features.developers.callfire.com · read 8 Oct 2026
- Geographic limits
- The pricing page says plans include calls to the US and Canada and that CallFire does not currently support international text messages.callfire.com · read 8 Oct 2026
- Integrations
- The API can be used to integrate existing CRM platforms, mobile apps, or backend website architecture with CallFire telephony solutions.callfire.com · read 8 Oct 2026
- Messaging and calling
- The API supports individual text and voice messaging as well as text and voice broadcast messaging.developers.callfire.com · read 8 Oct 2026
- Other capabilities
- The developer documentation includes contacts, number and keyword ordering, sound library, short codes, and action states and results.developers.callfire.com · read 8 Oct 2026
- Pricing allowance
- CallFire says calls and texts stop when an account's allowance reaches zero, and additional credits can be purchased at 6¢ per credit.callfire.com · read 8 Oct 2026
- Scale and uptime
- The API features page advertises 99.95% uptime and messaging from one contact up to one million.developers.callfire.com · read 8 Oct 2026
- SDKs
- The developer site lists Java, .NET, JavaScript (beta), Python (beta), and PHP (beta) SDKs for API v2.developers.callfire.com · read 8 Oct 2026
- Security
- CallFire says communications between its endpoints and customer applications use HTTPS with TLS, and webhook calls use SSL certificates.developers.callfire.com · read 8 Oct 2026
- Service features
- CallFire lists campaign management, scheduling controls, free call recording, real-time reporting, and webhooks among its API features.developers.callfire.com · read 8 Oct 2026
- Support
- The API features page says support is available 24/7 through its support page.developers.callfire.com · read 8 Oct 2026
- Webhooks
- The API supports webhooks for event notifications, including campaign events and incoming texts.developers.callfire.com · read 8 Oct 2026
