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SPECIFICTION
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CallFire API

developers.callfire.com

From $99/mo Free plan API
Visit developers.callfire.com
Spec score 8.2 #6 of 52 in Voice APIs

What it is

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.

Spec sheet

Integrations
The API can be used to integrate existing CRM platforms, mobile apps, or backend website architecture with CallFire telephony solutions.Read 8 Oct 2026 · callfire.com
Security
CallFire says communications between its endpoints and customer applications use HTTPS with TLS, and webhook calls use SSL certificates.Read 8 Oct 2026 · developers.callfire.com
Compliance
CallFire describes its developer software as including compliance solutions and lists Do Not Call list management among its features.Read 8 Oct 2026 · developers.callfire.com
Support
The API features page says support is available 24/7 through its support page.Read 8 Oct 2026 · developers.callfire.com
Headquarters
Los Angeles, California, United StatesRead 28 Sep 2026 · developers.callfire.com
API type
CallFire API v2 is a REST API that works with any HTTP client and returns JSON responses.Read 8 Oct 2026 · developers.callfire.com
Authentication
API v2 uses HTTP Basic Authentication with separately generated API credentials; standard CallFire UI credentials do not work as API credentials.Read 8 Oct 2026 · developers.callfire.com
Geographic limits
The pricing page says plans include calls to the US and Canada and that CallFire does not currently support international text messages.Read 8 Oct 2026 · callfire.com
Messaging and calling
The API supports individual text and voice messaging as well as text and voice broadcast messaging.Read 8 Oct 2026 · developers.callfire.com
Other capabilities
The developer documentation includes contacts, number and keyword ordering, sound library, short codes, and action states and results.Read 8 Oct 2026 · developers.callfire.com
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.Read 8 Oct 2026 · callfire.com
Scale and uptime
The API features page advertises 99.95% uptime and messaging from one contact up to one million.Read 8 Oct 2026 · developers.callfire.com
SDKs
The developer site lists Java, .NET, JavaScript (beta), Python (beta), and PHP (beta) SDKs for API v2.Read 8 Oct 2026 · developers.callfire.com
Service features
CallFire lists campaign management, scheduling controls, free call recording, real-time reporting, and webhooks among its API features.Read 8 Oct 2026 · developers.callfire.com
Webhooks
The API supports webhooks for event notifications, including campaign events and incoming texts.Read 8 Oct 2026 · developers.callfire.com

Plans and prices

Pay as you go Free no monthly fee Optional monthly rentals · $10.00 phone numbers · $25 keywords Read 8 Oct 2026 · callfire.com
Lite $99 a month $99/month 2500 minutes/texts · Optional monthly rentals · $2.50 phone numbers · $20 keywords Read 8 Oct 2026 · callfire.com
Startup $199 a month $199/month 5500 minutes/texts · Optional monthly rentals · $2.25 phone numbers · $15 keywords Read 8 Oct 2026 · callfire.com
Grow $299 a month $299/month 10000 minutes/texts · Optional monthly rentals · $2.00 phone numbers · $13 keywords Read 8 Oct 2026 · callfire.com
Pro $599 a month $599/month 20000 minutes/texts · Optional monthly rentals · $1.75 phone numbers · $10 keywords Read 8 Oct 2026 · callfire.com

Every CallFire API plan and price →

Strong points and limits

Strong points

  • REST API accepts any HTTP client and returns JSON
  • Supports individual and broadcast text and voice messaging
  • Webhooks include campaign and incoming-text events
  • SDKs listed for five languages

Limits

  • No free plan
  • API needs separately generated credentials
  • JavaScript, Python, and PHP SDKs are beta
  • Calls and texts stop when allowance reaches zero

Who it suits

CallFire API suits developers integrating CallFire telephony into CRM platforms, mobile apps, or backend website systems. It is for teams that can use generated API credentials and need text or voice messaging and calling capabilities.

Verdict

CallFire API offers messaging, calling, campaign tools, and event notifications through a REST interface. Check plan allowances and the separate API credential setup when estimating integration and usage needs.

Where Specifiction places it

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