Datacircle

18 Keys.so alternatives in 2026

By , founder of Datacircle. Last updated:

Other providers sell backlink APIs like Keys.so's. BacklinkMCP, DataForSEO and RankParse each cost $0.00 per 1,000 backlinks.

Backlink API alternatives

On our Keys.so plan pages, we compare each Keys.so plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 backlinks first.

Provider and plan$ per 1,000 backlinks
BacklinkMCP, free$0.00
DataForSEO, free$0.00
RankParse, free, GET /v1/backlinks, Backlinks, full$0.00
SE Ranking, free trial, GET /v1/backlinks/all$0.00
Morningscore, $690 yearly$0.00011
DomDetailer, $397 pack$0.00016

Compare every backlink API plan: Backlink API pricing: free and cheapest plans compared

Domain authority API alternatives

On our Keys.so plan pages, we compare each Keys.so plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 domains first.

Provider and plan$ per 1,000 domains
DataForSEO, top-up from $50, Pay as you go, POST /v3/backlinks/bulk_ranks/live$0.036
Omkar Cloud, $148 monthly, Scale Plan, GET /domains/authority/bulk$0.037
Keywords Everywhere, $480 yearly$0.04
Morningscore, $2,990 yearly$0.048
SEO PowerSuite, $899 monthly, 100,000,000 units, GET /backlinks/v1.0/get-domain-inlink-rank$0.09

Compare every domain authority API plan: Domain authority API pricing: free and cheapest plans compared

Keyword research API alternatives

On our Keys.so plan pages, we compare each Keys.so plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 keywords first.

Provider and plan$ per 1,000 keywords
AppDrift, $29 monthly$0.034
Seonio, $480 yearly, Business (yearly), POST /api/v1/keywords/country$0.044
KeywordTool.io, $816 yearly, Starter (annual), GET /v2/search/volume/bing$0.045
Morningscore, $2,990 yearly$0.048
Mangools, $30.50 monthly$0.051
Pixel Tools, ₽99 pack, Guru for 99 rubles, POST /api/wordstatapi, wordstatapi, full$0.068

Compare every keyword research API plan: Keyword research API pricing: free and cheapest plans compared

Ranked keywords API alternatives

On our Keys.so plan pages, we compare each Keys.so plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 keywords first.

Provider and plan$ per 1,000 keywords
AnyAPI, free, Starting balance$0.00
Bukvarix, free, Without registration, GET /v1/site/, Keywords for one domain, Yandex regions$0.00
DataForSEO, free, $1 trial credit, POST /v3/dataforseo_labs/google/ranked_keywords/live$0.00
Mangools, free$0.00
Morningscore, $299 monthly$0.000058

Compare every ranked keywords API plan: Ranked keywords API pricing: free and cheapest plans compared

Related keywords API alternatives

On our Keys.so plan pages, we compare each Keys.so plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 keywords first.

Provider and plan$ per 1,000 keywords
Bing Webmaster Tools, free$0.00
DataForSEO, free, $1 trial credit, POST /v3/dataforseo_labs/google/related_keywords/live$0.00
Mangools, free$0.00
SE Ranking, free trial, GET /v1/keywords/similar$0.00
XMLRiver, ₽5,000 monthly$0.00012

Compare every related keywords API plan: Related keywords API pricing: free and cheapest plans compared

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