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APISeller vs KD1S

same data, side by side
winner KD1S leads APISeller by 4.3 points on the published formula. Try KD1S →
83 / 125
Solid

APISeller

apiseller.com

Full review →
vs
88 / 125
Strong

KD1S

kd1s.com

Full review →

Reviewed by the SMMScout data team · updated 2026-08-14 · both panels scored on the published formula with dated inputs · methodology · editorial policy · disclosure

APISeller

Longevity 26/35
Catalog 14/30
Performance 26/35
Verification 0/25

KD1S

Longevity 22/35
Catalog 14/30
Performance 32/35
Verification 0/25

Key facts

Winner
KD1S on the published formula (88/125).
APISeller
4,272 services · 947ms API · not verified
KD1S
4,213 services · 712ms API · not verified
Price floors
verify live rates vs verify live rates per 1k.
Risk
APISeller 20/100 (Caution) vs KD1S 20/100 (Caution) on the scam score.
APISeller apiseller.com 83 Solid KD1S kd1s.com 88 Strong
Scout Score 83 / 125 88 / 125leads
Services 4,272 4,213
API response 947ms 712ms
Domain age 7.4y 6.4y
Payments PayPal n/d
Refill Listed Listed
API access Listed Listed
Price floor verify live rates verify live rates
APISeller · snapshot

Built for API-driven resellers; solid performance and age.

  • Each additional year of domain age adds 3.5 points, up to 10 years (currently 7.4).
  • Adding 4,728 services would add 15.8 scale points (cap 9,000).
KD1S · snapshot

Very fast API responses with a solid catalog.

  • Each additional year of domain age adds 3.5 points, up to 10 years (currently 6.4).
  • Adding 4,787 services would add 16.0 scale points (cap 9,000).
Head to head

APISeller (apiseller.com): Built for API-driven resellers; solid performance and age.

KD1S (kd1s.com): Very fast API responses with a solid catalog.

APISeller has no current flags. KD1S has no current flags. Compare the full data on each panel page, then test both with small orders.

Frequently asked questions

Which is better, APISeller or KD1S?

On the published SMMScout formula, KD1S leads with 88/125 against APISeller's 83. The gap comes from KD1S's stronger measured inputs (see the breakdown below). But the right panel depends on your market, payments and platforms: read both full reviews before funding.

Is KD1S or APISeller cheaper?

Price floors: APISeller at verify live rates vs KD1S at verify live rates. Headline price excludes drops: compare per-1k rates with the refill window before deciding.

Which panel has more services, APISeller or KD1S?

APISeller lists 4,272 services; KD1S lists 4,213. Catalog depth means more backup suppliers, but only if delivery quality holds: check retention with a small test order.

Our panels · scored by the same formula, always labeled

Ezkify 105 Excellent

AI-safe growth · Global · 8,700 services · 300ms API

Visit Ezkify → Read the review
Smmize 102 Strong

Provider / wholesale · Global · 3,643 services · 74ms API

Visit Smmize → Read the review

We operate both panels, disclosed here and on every page. They are scored with the identical formula: the numbers you see are the numbers on their pages.

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