SEO Score API vs SEO API (2026): which should you pick?
As of Nov 13, 2026, SEO Score API grades higher than SEO API: 2.6 against 2.4 out of 4.0.
Checked Oct 23, 2026 and Nov 13, 2026 · graded Oct 24, 2026 and Nov 13, 2026 by ToolGPA
SEO Score API grades higher on value for money, features and platforms. SEO API grades higher on the free plan. They get the same grade on ease of use.
Price, platforms and features side by side. The table says where each price was read and when.
SEO Score API
SEO audit API that scores any URL on 80+ checks, AI readability too
Which one is for you
Pick SEO Score API if
- Fits if you want a build to fail when a page's SEO score drops
- Works for developers adding page checks to their own apps or dashboards
Look elsewhere if
- Skip it if you need backlinks, keyword research or rank tracking, which it doesn't do
- Tight if you're on Free, with 20 audits a month and only 2 checks per category shown
- Pricey if you want Deep Site Audits, which start on Pro at $39 a month or $12 for a single audit
- Watch out: extra AI citation checks cost $10 for 500, and the pages don't say which AI engines are checked
- Watch out: the product is labeled as being in public beta
Pick SEO API if
- Fits if you need to check whether a visitor really is Googlebot or an AI crawler
- Works for technical SEOs who want a quick URL parser or HTTP status checker
Look elsewhere if
- Not for you if you want rankings, keywords or SERP data: it does not provide them
- Watch out: no rate limits, uptime commitment or terms were stated on the pages we read
- Skip it if you need a company behind it: it is run by an individual consultant
- Too light for a team that needs support, as no support channel is listed
How we grade them
| 2.6GPASEO Score APIGood | 2.4GPASEO APIFair | |
|---|---|---|
| Value for money | AStarter is $5 a month for 200 audits with all 80+ checks, under 60% of this category's cheaper quarter, and Pro is $39 for 5,000 with 20 deep audits. Google's Lighthouse, one of its listed alternatives, is free, though. | BEverything listed is free of charge, which beats the $11.40 mark for data APIs. But the lists are small reference data rather than a data service, so we stop at a B. |
| Free plan and trial | CA free plan for good with no card, but tight: 20 audits a month on 50+ checks, showing only 2 checks per category and the top 2 fixes, at 2 requests a minute. | AAll listed APIs and tools are free outright, with no plan or trial to run out. |
| Features | CPage audits done fully: 80+ checks, AI readability, SXO, AEO and AIO scores, monitoring, history and a 14,000+ check deep audit from Pro. It's a smaller job, though: no backlinks, keyword research or rank tracking, which the vendor says to get from Ahrefs or Moz. | DBot IP lists, a URL parse API and a handful of tools such as an HTTP status tester. It does one narrow job and does not give keywords, rankings or search results. |
| Ease of use | CJudged on how fast a developer gets a first result: send a URL and get a score back, with Python, Node.js and Go clients and a GitHub Action. No rating on record. | CNo store rating on record. Lists are easy to read, but using them as an API means calling them from your own code. |
| Platforms and integrations | BWeb, with an API, Python, Node.js and Go clients, an n8n node, an MCP server, a Claude Code skill and a GitHub Action, plus Vercel and Netlify. No desktop or phone app, so B is the top. | CWeb pages and simple APIs only, with no integrations listed. |
| Best for | SEO scores for single pages from your own code | free lists of search and AI crawler IPs |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: SEO Score API and SEO API. How we grade
Price against what you get
SEO Score API starts at $5 a month and scores 2.3 out of 4 on features, ease of use and platforms. SEO API has no paid plan and scores 1.7.
SEO Score API scores higher, and starts $5 a month higher: the question is whether the extra is worth that to you. Of the other SERP and SEO data APIs on the chart, 1 scores higher than SEO Score API for less, and none scores higher than SEO API for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- SEO Score API also covers site audit and AI search visibility.
- SEO API also covers page speed.
At a glance
| SEO Score API | SEO API | |
|---|---|---|
| Pricing | Free plan | Free |
| Starts at | $5 per month for 200 audits, billed monthly | Free |
| Free plan | 20 audits a month scored on 50+ checks, showing 2 checks per category and the top 2 fixes, at 2 requests a minute. No card needed. | The site describes its SEO APIs as free of charge. |
| Free trial | None listed | None listed |
| Web | ||
| Made by | 45Squared | Fili, technical SEO consultant |
| Price read from | seoscoreapi.com | seoapi.com |
| Checked | Oct 23, 2026 | Nov 13, 2026 |
Worth knowing
SEO Score API
- It audits pages only: no backlinks, keyword research or rank tracking, which the vendor says to get from suites such as Ahrefs or Moz.
- Deep Site Audits come only with Pro (20 a month) and Ultra (100), or as credit packs from $12 for one audit to $499 for 100.
- Extra AI citation checks cost $10 for 500 or $36 for 2,000; the pages read do not say which AI engines are checked.
- The product is labeled as being in public beta.
SEO API
- It is a set of free reference lists and small tools, not a keyword, ranking or SERP data service.
- The pages read do not state rate limits, an uptime commitment or terms of use.
- It is run by an individual technical SEO consultant, not a company with a pricing page.
Key features
SEO Score API
- 80+ checks per URL
- Titles, headings, canonical tags, robots.txt, sitemaps, structured data, Open Graph, page weight and accessibility, each marked pass, warning or fail with a fix.
- AI readability and GEO audits
- 26 checks on whether AI crawlers such as GPTBot and ClaudeBot can read a page, including llms.txt and bot access; GEO audits measure visibility to AI search.
- SXO, AEO and AIO scores
- Paid plans score search experience, how well a page answers questions for snippets and AI Overviews, and how easily language models can take it in.
- Deep Site Audit
- An asynchronous audit of about 90 seconds against a 14,000+ check catalog across nine areas, with an AI pass and a scan for leaked API keys.
- Monitoring and history
- Watch scores on a set of URLs, pull a page's score history, run batch audits, and share HTML reports and score badges.
- SDKs, CI and agents
- Python, Node.js and Go clients, an n8n node, an MCP server, a Claude Code skill and a GitHub Action that fails a build when a score drops.
SEO API
- Search engine bot IPs
- Address lists for Googlebot, Bingbot, YandexBot, Applebot, Baiduspider, DuckDuckBot and other search crawlers.
- AI bot IPs
- Address lists for OpenAI GPTBot, Anthropic ClaudeBot, PerplexityBot, Amazonbot, Meta-ExternalAgent and CommonCrawl CCBot.
- URL Parse API
- A listed API marked new on the site; the pages read do not describe its output.
- SEO toolbox
- An HTTP Status Tester, a Cumulative Layout Shift debugger and a disavow file validator.
Plans
SEO Score API
Free$0
20 audits a month on 50+ checks, with partial results, no history and no AI citation tracking.
Starter$5
per month for 200 audits, billed monthly
All 80+ checks, SXO, AEO and AIO scores, AI citation tracking with 15 prompts, 5 monitored URLs and 30 days of history.
Basic$15
per month for 1,000 audits, billed monthly
Adds 1 GEO audit a month, 30 tracked prompts, 10 monitored URLs and 90 days of history.
Pro$39
per month for 5,000 audits, billed monthly
20 Deep Site Audits, 5 GEO audits, 75 tracked prompts, 25 monitored URLs, a year of history and priority support.
Ultra$99
per month for 25,000 audits, billed monthly
100 Deep Site Audits, 10 GEO audits, 200 tracked prompts, 50 monitored URLs, unlimited history and dedicated support.
EnterpriseCustom
Custom audit volume and limits on an annual agreement with invoicing. Through sales.
SEO API
Free$0
All listed APIs and tools are offered free of charge.
Ways to pay less
SEO Score API
- Annual discount
Two months free with annual billing
SEO Score API bills paid plans yearly for the price of 10 months: Starter is $50 a year and Pro $390, with monthly allowances unchanged.
SEO API
No public discounts listed.
Common questions
Which is cheaper, SEO Score API or SEO API?
As of Nov 13, 2026, SEO API is cheaper to start with: it is free, against $5 a month for SEO Score API. SEO Score API starts at $5 per month for 200 audits, billed monthly, and SEO API is free.
Which has a free plan, SEO Score API or SEO API?
As of Nov 13, 2026, both SEO Score API and SEO API have a free plan.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.