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Linkheft APIBulk domain authority API + MCP: authority, web rank, trend and Majestic links · by CyberMax

Domain authority for 50 sites in one call

Bulk domain authority API: up to 50 domains, URLs or emails per call, each with a 0-100 authority score, its Common Crawl web-graph rank (harmonic and PageRank), host count, previous rank and trend, Majestic Million rank, referring subnets and IPs, and found…

Checkout by StripeFree: 1,000 domain lookups/dayREST API + MCP14-day refund

Who it's for

  • SEO and link-building tools
  • agencies and freelancers
  • lead scoring and enrichment
  • AI agents
Linkheft API: Domain authority for 50 sites in one call

Real sample output

DomainAuthorityTierWeb rankTrendRef. subnetsFound
wikipedia.org86top 10014stable229,583yes
stripe.com78top 10064stable51,463yes
hubspot.com70top 1,000277stable41,084yes
ahrefs.com65top 1,000717stable17,227yes
notion.so64top 1,000810stable18,243yes
moz.com64top 1,000802stable18,196yes

A live 8-domain call to the Linkheft API, 29 Sep 2026, sorted by score (web graph cc-main-2026-jul-aug-sep, Majestic Million 2026-09-23)

Why buyers pick Linkheft API

18 domains scored in one live call.
2Authority, web rank, trend + Majestic per domain.
3$19/month for 100,000 domain lookups.
4Per-domain authority priced like a utility

How it works

  1. Try the free tier: no key, no signup.
  2. Pick a plan and pay by card with Stripe.
  3. Your API key arrives by email; send it as a Bearer token.

Plans & pricing

FreeProspectorAgencyPlatformPay as you goProspector yearlyAgency yearlyPlatform yearly
Price$0$19/month$49/month$99/month$5 once$190/year$490/year$990/year
Included1,000 domain lookups a day100,000 domain lookups a month500,000 domain lookups a month2,000,000 domain lookups a month25,000 domain lookups100,000 domain lookups500,000 domain lookups2,000,000 domain lookups
Per 1,000free$0.19$0.10$0.05$0.20$1.90$0.98$0.49
Keynoneby email, instantlyby email, instantlyby email, instantlyby email, instantlyby email, instantlyby email, instantlyby email, instantly
Try freeBuyBuyBuyBuyBuyBuyBuy

Linkheft API Pay as you go: 25,000 domain lookups (no expiry)

$5 once

Bulk domain authority API: up to 50 domains, URLs or emails per call, each with a 0-100 authority score, its Common Crawl web-graph rank (harmonic and PageRank), host count,…

Buy now

Linkheft API Prospector: 100,000 domain lookups a month

$19/month

Bulk domain authority API: up to 50 domains, URLs or emails per call, each with a 0-100 authority score, its Common Crawl web-graph rank (harmonic and PageRank), host count,…

Buy now

Linkheft API Agency: 500,000 domain lookups a month

$49/month

Bulk domain authority API: up to 50 domains, URLs or emails per call, each with a 0-100 authority score, its Common Crawl web-graph rank (harmonic and PageRank), host count,…

Buy now

Linkheft API Platform: 2,000,000 domain lookups a month

$99/month

Bulk domain authority API: up to 50 domains, URLs or emails per call, each with a 0-100 authority score, its Common Crawl web-graph rank (harmonic and PageRank), host count,…

Buy now

Linkheft API Prospector yearly: 100,000 domain lookups a month, billed yearly

$190/year

Bulk domain authority API: up to 50 domains, URLs or emails per call, each with a 0-100 authority score, its Common Crawl web-graph rank (harmonic and PageRank), host count,…

Buy now

Linkheft API Agency yearly: 500,000 domain lookups a month, billed yearly

$490/year

Bulk domain authority API: up to 50 domains, URLs or emails per call, each with a 0-100 authority score, its Common Crawl web-graph rank (harmonic and PageRank), host count,…

Buy now
Best value

Linkheft API Platform yearly: 2,000,000 domain lookups a month, billed yearly

$990/year

Bulk domain authority API: up to 50 domains, URLs or emails per call, each with a 0-100 authority score, its Common Crawl web-graph rank (harmonic and PageRank), host count,…

Buy now

What you get

Bulk domain authority API: up to 50 domains, URLs or emails per call, each with a 0-100 authority score, its Common Crawl web-graph rank (harmonic and PageRank), host count, previous rank and trend, Majestic Million rank, referring subnets and IPs, and found true/false. Priced per domain looked up. Keys work on the REST API and the MCP server.

How the price compares

Domain metric APIs charge per domain: Moz API $20/month for 3,000 rows ($6.67 per 1,000) and $125/month for 50,000 ($2.50 per 1,000); DataForSEO backlink summaries about $0.024 each; Ahrefs API only inside plans from $129/month; OpenPageRank is free for 30,000 domains a month (checked 29 Sep 2026). Linkheft matches OpenPageRank's free allowance with 1,000 free lookups a day and adds Majestic referring subnets, PageRank rank and 4-month trend: Prospector $19/month for 100,000 domain lookups ($0.19 per 1,000), or $5 pay-as-you-go for 25,000 that never expire.

Vs rivals (per domain looked up (a call checks up to 50 domains))PlanPer 1,000
Moz API Starter$20 / 3,000 rows$6.67
Moz API Growth$125 / 50,000 rows$2.50
DataForSEO Backlinks Summary$0.024 per request~$24.00
OpenPageRank Bronze$84/year / 100,000 a month$0.07
Linkheft API Prospector$19 / 100,000 domain lookups$0.19

Refund policy

14-day money-back promise. If it doesn't work as described, email us within 14 days and we fix it or refund you in full. Duplicate charges are always refunded; failed API calls are never counted. Read the full policy.

Questions

How do I get it after paying?

Checkout is handled by Stripe. Your download, licence key or API key and your receipt arrive by email right after payment.

Can I get a refund?

Yes. If it doesn't work as described, email us within 14 days and we fix it or refund you in full. See the refund policy.

Is checkout secure?

Card details go only to Stripe. CyberMax never sees them; sales tax or VAT is calculated at checkout.

Can I cancel?

Any time, from the link in your receipt email. You keep access until the end of the paid period.

Can I try before buying?

Yes: the free tier gives 1,000 domain lookups a day with no key and no signup.

Can AI agents use it?

Yes. The same key works on the REST API and the remote MCP server at https://linkheft-api.cybermax-tools.workers.dev/mcp.

Why not Moz API or DataForSEO Backlinks API?

Domain metric APIs charge per domain: Moz API $20/month for 3,000 rows ($6.67 per 1,000) and $125/month for 50,000 ($2.50 per 1,000); DataForSEO backlink summaries about $0.024 each; Ahrefs API only inside plans from $129/month; OpenPageRank is free for 30,000 domains a month (checked 29 Sep 2026). Linkheft matches OpenPageRank's free allowance with 1,000 free lookups a day and adds Majestic referring subnets, PageRank rank and 4-month trend: Prospector $19/month for 100,000 domain lookups ($0.19 per 1,000), or $5 pay-as-you-go for 25,000 that never expire.

Try 5 domains free

Linkheft API · from $5

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