Semrush API vs Serpstat API

Semrush API and Serpstat API are both Backlink Data APIs, compared here on pricing, compliance, capabilities, and developer experience from structured, cited data - not reviews or paid placement. Serpstat API starts lower at $100 per month vs $455.67 for Semrush API. For coding-agent use, Serpstat API scores higher on agent-friendliness (55 vs 40).

Comparedby a transparent data-readiness score computed from each API's published, sourced fields. No reviews, no paid placement. How we rank.

Data last verified 2026-06-06, with every field cited on each profile.

Head-to-head, from published, cited fields (auto-generated; no paid placement)
Field	Semrush API	Serpstat API
Starting price	$455.67 month	$100 month
Pricing model	Hybrid	Subscription
Free tier	✗	✗
Self-serve signup	✓	✓
SOC 2	·	·
HIPAA	·	·
GDPR	✓	✓
Webhooks	✗	·
Sandbox	✗	✗
Documented actions	149	51

Full data and citations: Semrush API · Serpstat API. See more Backlink Data APIs.