# Seolyticize, free: Domain authority API

> Authority, keywords, traffic and referring domains for any list of domains, managed or not. Answers 'how strong is this site' for competitors and prospects.

Seolyticize's Early access plan for the domain authority API costs $0.00 per 1,000 domains. Seolyticize's docs list 2 of the 5 fields on our checklist: Authority score, Referring domains.
Seolyticize limits how many results you get but gives no number.
We ran Seolyticize in [our domain authority API benchmark](https://datacircle.dev/best-domain-authority-api.txt). We didn't score any Seolyticize plan.
Half of the 227 plans we rank by price cost $3.98 per 1,000 domains or less. This plan and 7 others tie for the lowest price per 1,000 domains of the 227 plans. [See the best free domain authority API plan.](https://datacircle.dev/best-domain-authority-api.txt)
[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/seolyticize/free
- [Domain authority API: domain rank providers compared](https://datacircle.dev/best-domain-authority-api.txt)
- Get it: https://seolyticize.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- Request: `POST https://seolyticize.com/api/v1/tools/batch_domain_metrics`
- API key: with the plan, on https://seolyticize.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- Its API docs: https://seolyticize.com/docs/ref-batch-domain-metrics?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- Sold by: Seolyticize (https://seolyticize.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 40%
- Authority score: ✓
- Referring domains: ✓

## Price

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

## Charges

- Also pays for: about 500 other calls · from the same budget: about 500 other calls: 600 requests a minute per key

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Authority, keywords, traffic and referring domains for any list of domains, managed or not. Answers 'how strong is this site' for competitors and prospects.

## Data

- Freshness: stored
- Keep data: no limit
- Use data: You must not use the platform to crawl a site you have no relationship with, to gather data on behalf of someone who could not gather it themselves, or in a way intended to burden a site rather than measure it.

## Plan

- Pay: $0

## Rate limit

- Per second: 10

## Speed

- Answer: in the call

## The call

- You send: domains
- Method: POST
- Path: /api/v1/tools/batch_domain_metrics

## About the plan

- Plan: Early access
- Who can get it: the agency holding the account

## The 4 fields the plan's answer can hold

domain authority, keywords, estimated traffic, referring domains

## Seolyticize's plans (1)

- [Seolyticize, free](https://datacircle.dev/domain-authority-apis/seolyticize/free/llms.txt): $0.00 per 1,000, 40% complete, stored

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

- `POST /api/v1/tools/batch_domain_metrics`: [Seolyticize, free](https://datacircle.dev/domain-authority-apis/seolyticize/free/llms.txt)

## Seolyticize's APIs (4)

- [Seolyticize: backlink API pricing, 1 plan](https://datacircle.dev/backlink-apis/seolyticize/free/llms.txt)
- [Seolyticize: tech stack API pricing, 1 plan](https://datacircle.dev/company-technology-apis/seolyticize/free/llms.txt)
- [Seolyticize: domain authority API pricing, 1 plan](https://datacircle.dev/domain-authority-apis/seolyticize/free/llms.txt)
- [Seolyticize: keyword research API pricing, 1 plan](https://datacircle.dev/keyword-research-apis/seolyticize/free/llms.txt)

## Seolyticize: domain authority API alternatives

- [DataForSEO, free, $1 trial credit, POST /v3/backlinks/summary/live](https://datacircle.dev/domain-authority-apis/dataforseo/free-1-trial-credit-post-v3-backlinks-summary-live/llms.txt): $0.00 per 1,000, 100% complete, stored
- [AIsa, free, Starter, POST /apis/v1/dataforseo/backlinks/summary/live](https://datacircle.dev/domain-authority-apis/aisa/free-starter-post-apis-v1-dataforseo-backlinks-summary-live/llms.txt): $0.00 per 1,000, 100% complete, stored
- [DomDetailer, $397 pack](https://datacircle.dev/domain-authority-apis/domdetailer/397-pack/llms.txt): $0.794 per 1,000, 60% complete, stored
- [ForgeMesh, pay as you go, x402, POST /v1/authority-compare](https://datacircle.dev/domain-authority-apis/forgemesh/pay-as-you-go-x402-post-v1-authority-compare/llms.txt): $1.00 per 1,000, 20% complete, stored

## 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://seolyticize.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://seolyticize.com/api/v1/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://seolyticize.com/docs/authentication?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://seolyticize.com/docs/costs-and-spending-limits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://seolyticize.com/docs/errors-and-limits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://seolyticize.com/docs/introduction?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://seolyticize.com/docs/ref-batch-domain-metrics?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing
- https://seolyticize.com/legal/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-authority-api-pricing