Datacircle lists all the GTM APIsSimilar companies API benchmark
We called each provider's calls once on the same 20 companies, on 20 October 2026. Time is each call minus a baseline, so the distance to the provider's servers drops out.
| API | Score | Similar companies checked | Time per company | The similar companies call | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Provider | Data score | Performance score | Returned | Same industry | Another industry | Not confirmed | Median | 10th percentile | 90th percentile | Fastest | Slowest | Baseline | Call | Charged per company |
| LeadMagic, Find Lookalike Companies | 36 | 100 | 190 of 200 | 72 of 200 | 108 of 200 | 10 of 200 | 3.42 s | 2.50 s | 5.74 s | 0.26 s | 14.24 s | 0.34 s | POST api.leadmagic.io/v3/companies/lookalike | 5 credits |
| LeadMagic, Find Competitors | 7 | 45 | 51 of 200 | 13 of 200 | 14 of 200 | 24 of 200 | 7.58 s | 4.85 s | 15.75 s | 0.23 s | 17.55 s | 0.35 s | POST api.leadmagic.io/v1/companies/competitors-search | 5 credits |