# Semust, free: Domain authority API

> Herhangi bir domain, subdomain veya sayfa için backlink profilini programatik olarak çekin. Sekiz farklı rapor tek bir endpoint'te, 30'dan fazla alanda sunucu tarafında filtreleme ile.

Semust's Free trial plan for the domain authority API costs $0.00 per 1,000 domains. Semust's docs list 3 of the 5 fields on our checklist: Backlinks, Referring domains, Referring pages.
We haven't run Semust through [our domain authority API benchmark](https://datacircle.dev/best-domain-authority-api.txt) yet.
This plan is free. We rank 227 plans for domain authority APIs by price. Half the plans cost $3.98 per 1,000 domains or less. [See the best free domain authority API plan.](https://datacircle.dev/best-domain-authority-api.txt)
[Morningscore's $69 monthly plan](https://datacircle.dev/domain-authority-apis/morningscore/69-monthly/llms.txt) is the cheapest paid plan per 1,000 domains. Morningscore's domain authority API costs nothing beyond the plan price.
[BacklinkMCP's $19 monthly plan](https://datacircle.dev/domain-authority-apis/backlinkmcp/19-monthly/llms.txt) covers any number of domains. BacklinkMCP's $19 monthly plan costs less up front than Morningscore's $69 monthly plan.
[BacklinkMCP](https://datacircle.dev/domain-authority-apis/backlinkmcp/19-monthly/llms.txt), [Tranco](https://datacircle.dev/domain-authority-apis/tranco/free/llms.txt) and [Morningscore](https://datacircle.dev/domain-authority-apis/morningscore/69-monthly/llms.txt) are the best domain authority API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/domain-authority-apis/semust/free
- [Domain authority API: the 16 best providers compared](https://datacircle.dev/best-domain-authority-api.txt)
- Get it: https://semust.com/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- Request: `POST https://data.semust.com/v1/backlinks`
- API key: with the plan, on https://semust.com/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- Its API docs: https://semust.com/docs/api/backlinks?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- Sold by: Semust (https://semust.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 60%
- Backlinks: ✓
- Referring domains: ✓
- Referring pages: ✓

## Price

- $ per 1,000 domains: $0.00
- Per: call
- Billing: free

## Charges

- Also pays for: from the same budget: SERP API · Keyword Data API · Google Images API · Technical SEO API · Domain Research API · YouTube API · Trends API · On-Page API · Business Data API

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Herhangi bir domain, subdomain veya sayfa için backlink profilini programatik olarak çekin. Sekiz farklı rapor tek bir endpoint'te, 30'dan fazla alanda sunucu tarafında filtreleme ile.

## Data

- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0
- Expires: 14 days

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: target, type "summary". Optional: scope, include_subdomains, exclude_internal, include_redirects
- Method: POST
- Path: /v1/backlinks

## About the plan

- Plan: Free trial
- Who can get it: anyone who signs up, no credit card required

## The 43 fields the plan's answer can hold

target, first seen, lost at, live, Semust rate, total backlinks, dofollow backlinks, nofollow backlinks, broken backlinks, broken pages, average spam score, referring domains, referring domains dofollow, referring domains nofollow, referring root domains, referring root domains nofollow, referring IPs, referring subnets, referring pages, referring pages nofollow, text links count, image links count, redirect links count, internal links count, outgoing links count, links by TLD, links by type, links by attribute, links by position, links by country, links by source type, target IP, target country, target CMS, target server, target spam score, success, cached, cost, report type, scope, total results, results count

## Semust's plans (2)

- [Semust, free](https://datacircle.dev/domain-authority-apis/semust/free/llms.txt): $0.00 per 1,000, 60% complete
- [Semust, top-up](https://datacircle.dev/domain-authority-apis/semust/top-up/llms.txt): $26.44 per 1,000, 60% complete

## Semust's calls for this API (1)

- `POST /v1/backlinks`: [Semust, free](https://datacircle.dev/domain-authority-apis/semust/free/llms.txt)

## Semust's APIs (11)

- [Semust: image search API pricing, 2 plans](https://datacircle.dev/image-search-apis/semust/free/llms.txt)
- [Semust: SERP API pricing, 2 plans](https://datacircle.dev/serp-apis/semust/free/llms.txt)
- [Semust: Local business reviews API pricing, 2 plans](https://datacircle.dev/local-business-reviews-apis/semust/free/llms.txt)
- [Semust: Local business search API pricing, 2 plans](https://datacircle.dev/local-business-search-apis/semust/free/llms.txt)
- [Semust: backlink API pricing, 2 plans](https://datacircle.dev/backlink-apis/semust/free/llms.txt)
- [Semust: domain authority API pricing, 2 plans](https://datacircle.dev/domain-authority-apis/semust/free/llms.txt)
- [Semust: keyword research API pricing, 2 plans](https://datacircle.dev/keyword-research-apis/semust/free/llms.txt)
- [Semust: ranked keywords API pricing, 2 plans](https://datacircle.dev/ranked-keywords-apis/semust/free/llms.txt)
- [Semust: related keywords API pricing, 2 plans](https://datacircle.dev/related-keywords-apis/semust/free/llms.txt)
- [Semust: web scraping API pricing, 2 plans](https://datacircle.dev/web-scraping-apis/semust/free/llms.txt)
- [Semust: video search API pricing, 2 plans](https://datacircle.dev/video-search-apis/semust/free/llms.txt)

## Semust: domain authority API alternatives

- [1Lookup, $7,990 yearly, Professional (annual), POST /bulk/jobs, Create a bulk job (type domain_authority)](https://datacircle.dev/domain-authority-apis/1lookup/7990-yearly-professional-annual-post-bulk-jobs/llms.txt): $26.633 per 1,000, 20% complete
- [Ahrefs, $1,290 yearly, Lite, GET /v3/site-explorer/backlinks-stats](https://datacircle.dev/domain-authority-apis/ahrefs/1290-yearly-lite-get-v3-site-explorer-backlinks-stats/llms.txt): $26.875 per 1,000, 20% complete
- [VerifiedDR, $327 yearly, Start (yearly), GET /lookup/{domain}](https://datacircle.dev/domain-authority-apis/verifieddr/327-yearly-start-yearly-get-lookup-domain/llms.txt): $27.25 per 1,000, 40% complete
- [Bishopi, $3,348 yearly, Business, GET /seo_api/](https://datacircle.dev/domain-authority-apis/bishopi/3348-yearly-business-get-seo-api/llms.txt): $27.90 per 1,000, 60% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-07.

- https://semust.com/api-platform/backlinks-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://semust.com/docs/api/backlinks?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://semust.com/en/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://semust.com/en/docs/api/rate-limits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://semust.com/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://semust.com/en/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing