World's largest backlink index via API
Access Ahrefs' industry-leading backlink database. The API returns referring domains, anchor text, link type, domain rating, URL rating, and first/last seen dates.
Pricing
Included with Ahrefs plans from $129/month
Use cases
Domain Authority and backlink data via API
Query Moz's link index for Domain Authority, Page Authority, spam score, linking domains, and inbound link details. Trusted metrics for evaluating site credibility.
Pricing
Free: 10 queries/month; Moz Pro from $99/month
Use cases
Trust Flow, Citation Flow, and backlink topology data
Majestic's unique Trust Flow and Citation Flow metrics distinguish link quality from quantity. The API exposes full backlink data, anchor text, and topical trust flow categories.
Pricing
Plans from $49.99/month; API units included
Use cases
Real-time backlink data with built-in spam scoring
Retrieve fresh backlink data including referring domains, anchors, page metrics, and a built-in spam score. DataForSEO updates its index continuously for near-real-time accuracy.
Pricing
Pay-as-you-go from $0.0006 per task
Use cases
Comprehensive backlink data from SEMrush's index
Query SEMrush's backlink database for referring domains, anchors, authority scores, and lost/new links. Includes toxic link identification for disavow workflows.
Pricing
API units from $0.01/unit; included in higher plans
Use cases
Backlink monitoring and email alerts via API
Linkody automatically monitors your backlinks and alerts you to new, lost, or broken links. The API lets you access this data for custom integrations and reporting workflows.
Pricing
Free: 2 domains; plans from $14.90/month
Use cases
Free backlink analysis API for basic link research
A free API for basic backlink research. Returns referring domains, anchor text, and link influence scores. Good for budget-conscious teams or supplementary link data.
Pricing
Free with registration; rate limits apply
Use cases