Quick answer
Veriphone - Veriphone wins for most builders because its free tier is larger, keeps full feature parity, and supports bulk CSV plus API access, while Numlookupapi is better only if you need a lightweight API key-limited starter and very small request volume.
How the free tiers compare
These two tools solve the same basic problem, but their free tiers are built for different starting points. Numlookupapi is a tight developer starter: 100 requests, one API key, and a 10 requests/minute cap. It looks useful if you just want to test an endpoint or validate a very small stream of numbers without much operational overhead. Veriphone is much more usable as an actual free working tier: 1,000 validations per month, no credit card required, full carrier and line-type data, and both bulk CSV and API access. The bigger difference is not just volume, but workflow. Veriphone lets you process lists and stay on the same feature set you get when paid, while Numlookupapi’s free plan is more of a sample. Once paid, both are flat-rate monthly plans, but Veriphone’s entry price buys 10x the monthly volume of Numlookupapi’s first paid plan.
Numlookupapi vs Veriphone free tier, side by side
| NumlookupapiFTV 44 | VeriphoneFTV 63 | |
|---|---|---|
| Free monthly allowanceVeriphone gives 10x the monthly volume. | 100 requests | 1,000 validations/month |
| API keysNumlookupapi explicitly limits the free tier to one key. | 1 API key | Not stated in provided free-tier data |
| Rate limitNumlookupapi’s free tier has a per-minute cap. | 10 requests/minute | Not stated in provided free-tier data |
| Carrier and line-type data on free tierVeriphone says the free tier includes full carrier and line-type data. | Not stated in provided free-tier data | Included |
| Bulk CSV support on free tierVeriphone free access works with both bulk CSV uploads and the API. | Not stated in provided free-tier data | Included |
| Credit card required for free tierThis is explicitly stated for both products. | No | No |
After you outgrow the free tier
Both products use flat monthly pricing once you leave the free tier, so the cost difference is mostly about how much volume you get for the first paid dollar. Numlookupapi starts at $9.99/month for 5,000 requests, then steps to $49.99 for 50,000 and $109.99 for 250,000. Veriphone starts at $12.99/month for 10,000 validations, then $39 for 50,000, $99 for 250,000, and $249 for 1,000,000. For small-team use, Veriphone is usually the cheaper way to buy more volume; Numlookupapi is cheaper only at the very lowest paid entry point.
Cost at real usage
| Usage | Numlookupapi | Veriphone |
|---|---|---|
| 1,000 validations/moBoth free tiers cover this usage based on the provided limits. | Free (within tier) | Free (within tier) |
| 5,000 validations/moNumlookupapi’s Basic plan is the first paid step that reaches 5,000 requests; Veriphone’s Starter also covers this volume. | $9.99/mo | $12.99/mo |
| 50,000 validations/moBoth products have a 50,000-volume plan, but Veriphone is cheaper at this level. | $49.99/mo | $39/mo |
| 250,000 validations/moVeriphone remains slightly cheaper at 250,000 volume. | $109.99/mo | $99/mo |
Estimates, not quotes. Usage-based rates change - verify with the vendor's pricing page before committing.
When to pick each one
Pick Numlookupapi when…
- You only need to test a phone lookup endpoint with a few dozen or a hundred calls.
- You want a very small starter plan with a single API key and a hard request cap.
- You care more about a simple REST validation flow than bulk CSV processing.
- You expect to upgrade quickly and want the jump from free to paid to stay narrow in price.
Pick Veriphone when…
- You need to validate around 1,000 numbers per month without paying.
- You want the same carrier and line-type data on free that paid users get.
- You need bulk CSV uploads for cleaning a list, not just single-number API calls.
- You want a free tier that can support a real workflow instead of only a demo.
- You want a clearer path from free into higher-volume monthly plans without jumping straight to a tiny request ceiling.
Bottom line
For most builders, Veriphone is the better free-tier pick because it gives more room to actually use the product, not just test it. The free plan is larger, includes the same core data as paid plans, and supports both bulk CSV and API workflows. Numlookupapi makes sense if you only need a narrow starter API with a tiny monthly allowance and one key. If you expect to validate real lists or grow usage, Veriphone is the easier place to begin.
Read the full listings: Numlookupapi and Veriphone. Scores use the FTV methodology at /ftv. Browse more head-to-heads on /compare, or see the top-ranked free tiers on /top.