# Moz, free: Domain authority API

> You can use the API to retrieve metrics for a site, such as link counts and in-house authority and spam metrics

Moz's domain authority API on its Free plan. It costs $0.00 per 1,000 domains. It returns 1 of the 5 key fields we check: Spam score.
We rank 38 plans by price. [DataForSEO's top-up from $50](https://datacircle.dev/domain-authority-apis/dataforseo/top-up-from-50-pay-as-you-go-post-v3-backlinks-bulk-ranks-live/llms.txt) costs the least per 1,000 domains: $0.036.

- This page: https://datacircle.dev/domain-authority-apis/moz/free
- Get it: https://moz.com/products/api/pricing
- Request: `POST https://lsapi.seomoz.com/v2/url_metrics`
- API key: with the plan, on https://moz.com/products/api/pricing
- Its API docs: https://moz.com/help/links-api/making-calls/url-metrics
- Sold by: Moz (https://moz.com)
- Checked: 2026-10-29

## In the answer

- Completeness: 20%
- Spam score: ✓

## Price

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

## Charges

- Start fee: $0.00
- Also pays for: from the same budget: Links · Brand Authority · Link Intersect · Linking Root Domains · Link Status · Anchor Text · Final Redirect · Top Pages · Global Top Pages · Global Top Root Domains · Index Metadata · Usage Data · Keyword Metrics · Keyword Suggestions · Search Intent · Ranking Keywords

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: You can use the API to retrieve metrics for a site, such as link counts and in-house authority and spam metrics

## Data

- Keep data: no limit
- Use data: use the Service to access the Data for Subscriber’s internal business purpose requiring analyzing URLs, (ii) display Data internally within its business, and (iii) display Data externally provided such display is done in accordance with Our attribution policy [...] Subscriber will not (nor will permit anyone else to) : (a) sell or otherwise charge anyone specifically or solely for the access or use of the Service except as permitted under the Agreement, (b) create any derivative works of the Service, (c) combine Data with constant factors [...], (d) copy, store, archive or extract Data in a manner not explicitly permitted herein, [...] (f) permit third parties to use the API key, [...] When displaying Moz API data (links, metrics, and anchor text), use our approved logo and link it to https://moz.com/. [...] You may not white-label our metrics. When you display data from Moz API, you must label it as originating from the Moz API.

## Plan

- Pay: $0
- You get: 50 credits a month
- Enough for: 50 results a month

## Rate limit

- Per second: 0.1
- Batch: 50

## The call

- You send: targets. Optional: daily_history_deltas, daily_history_values, monthly_history_deltas, monthly_history_values, distributions
- Method: POST
- Path: /url_metrics

## About the plan

- Plan: Free
- Who can get it: anyone with a valid, non-expired credit card

## The 52 fields the plan's answer can hold

URL, subdomain, root domain, title, last crawled, HTTP code, pages to page, nofollow pages to page, redirect pages to page, external pages to page, external nofollow pages to page, external redirect pages to page, deleted pages to page, root domains to page, indirect root domains to page, deleted root domains to page, nofollow root domains to page, pages to subdomain, nofollow pages to subdomain, redirect pages to subdomain, external pages to subdomain, external nofollow pages to subdomain, external redirect pages to subdomain, deleted pages to subdomain, root domains to subdomain, deleted root domains to subdomain, nofollow root domains to subdomain, pages to root domain, nofollow pages to root domain, redirect pages to root domain, external pages to root domain, external indirect pages to root domain, external nofollow pages to root domain, external redirect pages to root domain, deleted pages to root domain, root domains to root domain, indirect root domains to root domain, deleted root domains to root domain, nofollow root domains to root domain, page authority, domain authority, link propensity, spam score, root domains from page, nofollow root domains from page, pages from page, nofollow pages from page, root domains from root domain, nofollow root domains from root domain, pages from root domain, nofollow pages from root domain, pages crawled from root domain

## Moz's plans (7)

- [Moz, free](https://datacircle.dev/domain-authority-apis/moz/free/llms.txt): $0.00 per 1,000, 20% complete
- [Moz, $20 monthly](https://datacircle.dev/domain-authority-apis/moz/20-monthly/llms.txt): $6.667 per 1,000, 20% complete
- [Moz, $75 monthly](https://datacircle.dev/domain-authority-apis/moz/75-monthly/llms.txt): $5.00 per 1,000, 20% complete
- [Moz, $125 monthly](https://datacircle.dev/domain-authority-apis/moz/125-monthly/llms.txt): $2.50 per 1,000, 20% complete
- [Moz, $250 monthly](https://datacircle.dev/domain-authority-apis/moz/250-monthly/llms.txt): $2.083 per 1,000, 20% complete
- [Moz, $500 monthly](https://datacircle.dev/domain-authority-apis/moz/500-monthly/llms.txt): $1.00 per 1,000, 20% complete
- [Moz, contact us](https://datacircle.dev/domain-authority-apis/moz/contact-us/llms.txt): 20% complete

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

- `POST /url_metrics`: [Moz, free](https://datacircle.dev/domain-authority-apis/moz/free/llms.txt)

## Moz's APIs (5)

- [Moz: backlink API pricing, 7 plans](https://datacircle.dev/backlink-apis/moz/free/llms.txt)
- [Moz: domain authority API pricing, 7 plans](https://datacircle.dev/domain-authority-apis/moz/free/llms.txt)
- [Moz: keyword research API pricing, 7 plans](https://datacircle.dev/keyword-research-apis/moz/free/llms.txt)
- [Moz: ranked keywords API pricing, 7 plans](https://datacircle.dev/ranked-keywords-apis/moz/free/llms.txt)
- [Moz: related keywords API pricing, 7 plans](https://datacircle.dev/related-keywords-apis/moz/free/llms.txt)

## Moz: domain authority API alternatives

- [Keywords Everywhere, $168 yearly](https://datacircle.dev/domain-authority-apis/keywords-everywhere/168-yearly/llms.txt): $0.07 per 1,000, 20% complete
- [SpyFu, $2,244 yearly, Team / Agency, GET /apis/domain_stats_api/v2/getLatestDomainStats](https://datacircle.dev/domain-authority-apis/spyfu/2244-yearly-team-agency-get-apis-domain-stats-api-v2-getlatestdomainstats/llms.txt): $0.50 per 1,000, 0% complete
- [Majestic, $399.99 monthly](https://datacircle.dev/domain-authority-apis/majestic/399-99-monthly/llms.txt): $0.80 per 1,000, 20% complete
- [SE Ranking, top-up from $50, Wallet, GET /v1/backlinks/authority/domain](https://datacircle.dev/domain-authority-apis/se-ranking/top-up-from-50-wallet-get-v1-backlinks-authority-domain/llms.txt): $1.00 per 1,000, 0% complete, 1 month

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-29.

- https://moz.com/api
- https://moz.com/api-general-conditions
- https://moz.com/api/docs
- https://moz.com/api/docs/guides/error-handling
- https://moz.com/api/docs/guides/getting-started
- https://moz.com/api/docs/guides/rate-limiting
- https://moz.com/help/links-api/getting-started/legal
- https://moz.com/help/links-api/making-calls/url-metrics
- https://moz.com/help/links-api/making-calls/weighted-endpoints
- https://moz.com/products/api/pricing