Side by side
PhoneValidationAPI vs Twilio Lookup
Both stand on phone number validation software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIWeb
PhoneValidationAPI combines number parsing, line and carrier data, and disposable-number checks in an HTTP API. Its confidence labels come with a stated caveat: results can vary by country, and some numbering plans are ambiguous.
Visit PhoneValidationAPI
Free plan API
Twilio Lookup provides phone-number validation and passive risk information through an API. Check regional availability and the listed per-request charges for the signals your workflow needs.
Visit Twilio LookupThe facts
| PhoneValidationAPI | Twilio Lookup | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Web | API |
| Lowest paid plan | Basic: $14.99 a month | Line Status: $0.01, paid once |
| Plans published | 5 | 8 |
| Maker | Not published | Not published |
| Website | phonevalidationapi.com | twilio.com |
| On phone number validation software | #8 of 25 | #12 of 25 |
PhoneValidationAPI: what it does well
- Returns country, region, line type, and carrier data.
- Checks disposable and burner-number status.
- No SMS or PSTN calls are used for validation.
- Professional includes batches up to 10,000 numbers.
- OpenAPI specification and Postman collection are linked.
What to know first
- Free plan is limited to 100 requests per month.
- Basic allows 6,000 requests per month.
- Confidence varies by country and numbering plan.
Twilio Lookup: what it does well
- Free phone number formatting and validation.
- Provides line, carrier, and risk signals.
- Code examples cover four programming languages.
- Can be used with Twilio Verify.
What to know first
- Caller name is available only in the US.
- Call-forwarding status is available only in the UK.
- SIM swap and call-forwarding pricing requires contacting sales.
- It is not a standalone challenge-response authentication mechanism.
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