Phone Specification
Phone
Rest Api for Phone specifications
No keyHTTPS
Free Phone APIs
Free public APIs for phone, each one verified and kept up to date.
7 listed · 1 need no key · 0 work in the browser
Numlookup
Phone
Phone number validation and carrier lookup API with global coverage
API keyHTTPS
Phone Validation
Phone
Validate phone numbers globally
API keyHTTPS
User Data Scraper
Phone
This API allows users to scrape and retrieve user data from various online sources. It gathers a wide range of user information including names, addresses, phone numbers, and more, which can be utilized for various applications and analytics.
AuthHTTPS
Veriphone
Phone
Phone number validation & carrier lookup
API keyHTTPS
VeriRoute Intel
Phone
CNAM caller ID, carrier/LRN lookup and spam scoring for North American phone numbers
API keyHTTPS
PlaceCall
Phone
AI agent places phone calls to US businesses and returns the outcome, transcript and recording
API keyHTTPS
All 7 Phone APIs
Free Phone APIs — common questions
Counts and timings below come from our own scheduled checks of this category.
How many free phone APIs are there?
We track 7 in this category, of which 6 responded at our last check. 1 of them need no API key.
Which phone APIs work without an API key?
1 of the 7 entries here need no credential. Filter this page by "no key" to see them, or browse the no-key collection for every keyless API across all categories.
Can I use these phone APIs in a browser app?
None of the entries in this category currently combine no-key access with CORS headers, so you will need a small server-side proxy to use them from browser JavaScript.
Which is the fastest free phone API?
Of the keyless options that responded at our last check, Phone Specification was quickest at a median 1867 ms. Speed is only one factor — coverage and licensing usually matter more — but it is measured here rather than claimed.
How do you know these APIs still work?
We call every listing on a schedule and record the status code, response time and whether CORS headers came back. Those results drive the badges on this page. Across the whole catalogue, 361 of 3,005 entries were not responding at the last full run, which is the sort of thing an unchecked list never tells you.