# Best phone validation API in 2026

> We benchmarked 3 phone validation API providers. We list all three, ranked by score. For each one, we show its top scoring plan, each part of the plan's score and what 1,000 phones cost.

1. [seven.io, top-up, Prepaid balance: Phone validation API](https://datacircle.dev/validate-phone-apis/seven-io/top-up-prepaid-balance-get-api-lookup-hlr): Overall score 63.2 (Price 19, Data 86, Cost to get started 93, Bundle 83, Performance 100), $11.253 per 1,000 phones
   - It returns 7 of the 9 key fields we check: Number, Formats, Validity, Type, Carrier, Porting and roaming, Place.
   - In our benchmark of 25 October 2026, we called this provider on all 20 of our numbers.
   - We scored this plan 0.8571 out of 1 in our benchmark, so its Data score is 86.
2. [NeuralVerge, $50 monthly: Phone validation API](https://datacircle.dev/validate-phone-apis/neuralverge/50-monthly): Overall score 55.9 (Price 16, Data 94, Cost to get started 78, Bundle 80, Performance 14), $100.00 per 1,000 phones
   - It returns 7 of the 9 key fields we check: Number, Validity, Type, Carrier, Place, Risk, Owner.
   - In our benchmark of 21, 23 and 25 October 2026, we scored this provider on 11 of our 20 numbers.
   - We scored this plan 0.9437 out of 1 in our benchmark, so its Data score is 94.
3. [Byteplant, $499.90 pack: Phone validation API](https://datacircle.dev/validate-phone-apis/byteplant/499-90-pack): Overall score 40.1 (Price 9, Data 64, Cost to get started 55, Bundle 50, Performance 44), $49.99 per 1,000 phones
   - It returns 5 of the 9 key fields we check: Formats, Validity, Type, Carrier, Place.
   - In our benchmark of 23 and 25 October 2026, we called this provider on all 20 of our numbers.
   - We scored this plan 0.6374 out of 1 in our benchmark, so its Data score is 64.

The Data score on phone validation APIs: How often the call judges a number right, out of 100: valid when it is real, invalid when it is fictional. Real numbers count for half the score and fictional numbers for the other half. A call scores 0 if it calls no fictional number invalid. It also scores 0 if it calls no real number valid. A call that never checks whether the number is in use scores 0. The digits alone show which numbers are fictional. A refused call counts as not right. Some providers ran on only part of the numbers. We compare each such provider with the providers that ran on all the numbers, using only the numbers that provider ran on. That way, easy numbers can't raise its score. We don't compare a provider with a call that scores 0. A call that scores 0 tells us nothing about which numbers are hard. When no provider ran on all the numbers, we score each provider on the numbers it ran on. We score a provider on every call we made to it for a number, so one run can't decide its score.

Last updated: October 26, 2026. The page: https://datacircle.dev/best-phone-validation-api. Every plan: https://datacircle.dev/phone-validation-api-pricing. The benchmark: https://datacircle.dev/phone-validation-api-pricing/benchmark.csv.