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Kettio

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What Kettio is

Kettio evaluates advertising creative for a selected buyer, platform, and conversion goal, then returns a relative ranking, rationale, and confidence signal. AI respondents modeled on the selected buyer assess ads individually, and their responses are combined into a directional result. Results identify the leading ad, explain the rationale, show confidence, and suggest improvements; live media remains the final evidence of performance. Creative inputs include images, videos, copy, static ads, user-generated content, product shots, and full ad packages. Kettio offers a REST Ranking API and a local MCP server. API access is included with Professional, while Free and Starter accounts must upgrade to create an API key. A request can include up to 20 images, and each API key is limited to 60 scoring evaluations per minute. API and app rankings share a monthly ad allowance, and requests stop when it runs out. The free plan scores 20 ads each month; Starter costs $29.99 a month and Professional costs $139 a month. High-volume video work is handled through founding pilots while a bulk workflow is being prepared.

Who it suits

Kettio may suit agencies and DTC teams producing 50 or more creatives a month that want to back-test past ads. It is also for teams seeking directional creative rankings before checking performance in live media.

What it does well

  • Ranks creative against a selected buyer and goal.
  • Reports rationale, confidence, and suggested improvements.
  • Offers a REST Ranking API and local MCP server.
  • Free plan scores 20 ads each month.
  • Supports ad library import and advanced creative reporting.

What to know first

  • Scores do not guarantee CPA, ROAS, or purchases.
  • Free and Starter users must upgrade for an API key.
  • Monthly ranking requests stop when the allowance runs out.
  • High-volume video workflow is still being prepared.

Limits

Free includes 20 ads scored monthly, two ads per comparison, and four pre-built buyer personas. Starter allows 100 ads ranked monthly and 10 audience profiles; Professional allows 500 ads ranked monthly. API and app rankings share each plan’s monthly allowance, and requests stop when it runs out; high-volume video ingestion and turnaround are scoped with founding pilots.

Plans

PlanBilled and limitsPrice
Free20 ads scored each month · 2 ads per comparison · own or example audience · verdicts, scores and pull quotes · no credit cardFree
Professional500 ads ranked each month · Unlimited audience profiles · 500 ad-generation credits · qualitative feedback · ranking history and exports · API access · priority support$139 a month
Starter100 ads ranked each month · 10 audience profiles · 50 ad-generation credits · 2–10+ ads per batch · two-ad shortlist · Meta Ad Library access$29.99 a month
Growth PartnerSeparately scoped validation pilot · Blind historical back-test · bulk/API workflow planning · outcome comparison and readoutOn request

As kettio.com lists them, read 15 Oct 2026. The maker's own page has the final word.

Getting started

  1. Open kettio.com in a web browser.
  2. Choose the Free plan or a paid plan: Starter is $29.99 a month, and Professional is $139 a month.
  3. Select a buyer, platform, and conversion goal, then provide creative for ranking.
  4. For API access, choose Professional and create an API key; Free and Starter accounts must upgrade first.
  5. Apply for a blind back-test if you want to compare rankings of past creatives with actual results.

Overview

Kettio is a creative-ranking tool for teams choosing ads against a defined buyer, platform, and conversion goal. It is best suited to agencies and DTC teams managing a regular flow of creative; its main value is a reasoned relative ranking, not a forecast of campaign results.

Key features

Kettio uses AI respondents modeled on a selected buyer persona. They assess each ad independently, and the responses are combined into a directional ranking. Results identify the leading ad, explain its position, show confidence, and suggest improvements. That makes Kettio useful for prioritizing what to test next, but not for replacing live media: its scores do not guarantee CPA, ROAS, or purchases.

Creative inputs include images, videos, copy, static ads, user-generated content, product shots, and full ad packages. Automated experiment types, advanced creative reporting, and ad-library import broaden the workflow beyond image comparisons. The back-test application lists Meta and TikTok creative volume and lets applicants enter other platforms, such as Google.

Teams can apply for a blind back-test of past creatives. Kettio ranks them without showing spend or outcome labels, then compares the ranking with actual results. This can help agencies and DTC teams producing 50 or more creatives a month assess whether the rankings are useful for their work, though the comparison is not a guarantee of future performance.

The REST Ranking API accepts up to 20 images per request and 60 scoring evaluations per minute per API key. App and API rankings draw from the same monthly ad allowance, and requests stop when that allowance is exhausted. High-volume video ingestion and turnaround are scoped with founding pilots while a dedicated bulk-video workflow is being productionized, so teams with substantial video throughput should discuss their needs before committing.

A local MCP server is also available. Professional includes API access; Free and Starter accounts must upgrade to create an API key. The privacy policy describes encryption in transit and at rest, TLS/SSL, Firebase Authentication, security audits, access controls, and incident monitoring. Prompts and generated assets may be used to improve AI models by default; users can opt out in Privacy Settings.

Pricing

Kettio has a free plan and two month-to-month paid plans. The free tier is a no-cost way to try small comparisons, but its 20 monthly scored ads, two ads per comparison, and four pre-built buyer personas constrain repeated or audience-specific work.

  • Free — free: 20 ads scored each month, two ads per comparison, and four pre-built buyer personas. API key creation requires an upgrade, and rankings use the same monthly allowance as app usage.
  • Starter — $29.99 a month, billed month-to-month: 100 ads ranked each month, 10 audience profiles, 50 ad generation credits, and Meta Ad Library access. It suits smaller teams that need more comparisons and profile choice than Free, but it does not include API access.
  • Professional — $139 a month, billed month-to-month: 500 ads ranked each month, unlimited audience profiles, 500 ad generation credits, API access, and priority support. It is the clearest fit for higher-volume teams or workflows that need API keys; the shared monthly allowance still caps app and API rankings.

Professional is the only plan with API access and priority support. For questions, the company lists [email protected].

Platforms

Kettio is available on web and through an API. Its platform coverage includes TikTok, Instagram, Meta (Facebook), and general display. The back-test application specifically lists Meta and TikTok and accepts applicant-entered platforms such as Google.

Who it's for

Kettio makes most sense for creative teams that want a structured way to compare ads before putting them into live media, particularly agencies and DTC businesses producing at least 50 creatives a month. Smaller teams can start on Free, while teams that need many audience profiles, higher monthly volume, or API access have a reason to consider Professional. It is a weaker fit for buyers seeking guaranteed performance predictions or high-volume video turnaround without first scoping a pilot.

Pros and cons

  • Pro: Rankings include rationale, confidence, and suggested improvements, giving teams more to act on than a winner alone.
  • Pro: The blind back-test compares rankings with past outcomes without exposing spend or labels during ranking.
  • Pro: Professional combines 500 monthly rankings, unlimited audience profiles, API access, and priority support.
  • Con: Scores are directional and cannot assure CPA, ROAS, or purchases, so live campaign results remain decisive.
  • Con: App and API usage share a plan allowance, and rankings stop when that monthly quota runs out.
  • Con: Free and Starter cannot create API keys, and bulk video handling is still being productionized.
  • Con: Prompts and generated assets may be used for model improvement by default unless users opt out in Privacy Settings.

Alternatives

Browse ad creative testing tools for a wider comparison. Choose Marpipe if a free plan for exploring design possibilities, previewing generative designs, or launching dynamic product ads is a better match. Pencil is another option, with a free trial and paid generation plans. Consider SaliencyLab for a free web and API option with a 10-analysis monthly allowance and visual attention diagnostics. Vidmob is a paid alternative available on web and iOS. AdTest.AI offers a free trial and paid credit-based plans, including a 30.00 USD monthly Creator tier with 20 credits. Framework by NewForm is a paid web option. Ipsos Creative|Spark AI is a paid web option. Kantar LINK AI has a pay-as-you-go Self-serve plan starting at 500.00 USD once; pick it when that pricing model fits better than a monthly subscription.

Verdict

Choose Kettio if your team needs a repeatable, explainable way to rank a steady stream of creative and can treat the result as a shortlist for live testing. Its rationale, confidence signal, and blind back-test are the strongest reasons to use it. Look elsewhere if you need a performance guarantee, unscoped high-volume video processing, or API access on a lower-cost plan.

Verdict

Kettio offers a structured way to compare creative and inspect the reasoning behind a ranking, but its scores are directional rather than a guarantee of campaign outcomes. Check plan allowances and API access needs before choosing a tier.

Questions

Is there a free plan?

Yes. Free includes 20 ads scored each month, two ads per comparison, and four pre-built buyer personas.

What do the paid plans cost?

Starter is $29.99 a month, billed month-to-month. Professional is $139 a month, also billed month-to-month.

Which platforms does Kettio support?

The product is available on web and API. Its back-test application lists Meta and TikTok and lets applicants enter other platforms such as Google; creative platform categories also include Instagram and general display.

Can I use the API on the Free plan?

Kettio offers a REST Ranking API and a local MCP server. API access is included with Professional; Free and Starter accounts must upgrade to create an API key.

How many images can an API request rank?

The Ranking API accepts up to 20 images per request and allows 60 scoring evaluations per minute per API key. API and app rankings share the plan’s monthly ad allowance.

Do Kettio’s scores guarantee campaign results?

No. Kettio describes scores as directional and says they do not guarantee CPA, ROAS, or purchases; live media is the final proof.

Facts from Kettio's own pages

AI-training data use
Prompts and generated assets may be used for model improvement by default, with an opt-out in privacy settings. · kettio.com, 15 Oct 2026
API and MCP
The product offers a REST Ranking API and a local MCP server; API access is included with Professional, while Free and Starter accounts must upgrade to create a key. · kettio.com, 29 Sept 2026
API endpoint
The documented ranking endpoint is POST /api/v1/rank and returns structured JSON results. · kettio.com, 15 Oct 2026
API entitlement
API access is included with Professional, while Free and Starter users must upgrade before creating a key. · kettio.com, 15 Oct 2026
Audience personas
Users can define personas with demographic, psychographic and purchase-intent information. · kettio.com, 15 Oct 2026
Audience simulation
AI respondents modeled on the selected buyer independently react to each ad and their responses are combined into a directional ranking. · kettio.com, 15 Oct 2026
Batch API limit
The Ranking API accepts up to 20 images per request and 60 scoring evaluations per minute for each API key. · kettio.com, 15 Oct 2026
Batch limits
The Ranking API accepts up to 20 images per request and 60 scoring evaluations per minute per API key. · kettio.com, 29 Sept 2026
Best fit
The blind back-test is presented for agencies and DTC teams producing 50 or more creatives a month. · kettio.com, 29 Sept 2026
Calibration
Teams can apply for a blind back-test that ranks past creatives without seeing spend or outcome labels, then compares rankings with actual results. · kettio.com, 29 Sept 2026
Calibration option
Agencies can request a blind back-test that ranks historical creatives without seeing spend or outcome labels before comparing results with actual account outcomes. · kettio.com, 15 Oct 2026
Client examples
The site shows TypeScript fetch usage and curl requests authenticated with a bearer API key. · kettio.com, 15 Oct 2026
Company identity
The site footer identifies the maker as Kettio, Inc. · kettio.com, 15 Oct 2026
Company publicity
The about page says Kettio has no press coverage and points readers to Hacker News, Product Hunt, LinkedIn and X as its public footprints. · kettio.com, 15 Oct 2026
Comparability limitation
Rankings are intended for ads sharing the same offer, landing page, platform and audience; unrelated offers should not be compared. · kettio.com, 15 Oct 2026
Creative inputs
The product evaluates static images, copy and complete ad packages, with each creative assessed separately. · kettio.com, 15 Oct 2026
Data retention
The policy says generated assets are stored indefinitely unless deleted, usage logs can remain for up to two years and payment records for seven years. · kettio.com, 15 Oct 2026
Data use
The privacy policy says prompts and generated assets may be used to improve AI models by default, with an opt-out in Privacy Settings. · kettio.com, 29 Sept 2026
Decision support
Results include which ad leads, why it leads, confidence, and suggested improvements; live media is the final proof. · kettio.com, 29 Sept 2026
Founded
2023 · kettio.com, 28 Sept 2026
Founder
Kettio identifies Spencer Merrill as its founder and says the company began in 2023. · kettio.com, 15 Oct 2026
Independent advertising dataset
The University of Washington Bad Ads dataset contains 500 web ads evaluated by more than 1,000 participants, with ten participants assigned to each ad. · badads.cs.washington.edu, 15 Oct 2026
Independent dataset scale
The University of Washington dataset reports participant averages on a seven-point Likert scale and includes opinion-label distributions for each ad. · badads.cs.washington.edu, 15 Oct 2026
Independent methodology context
The University of Washington advertising study underlying the public dataset was published as CHI 2021 research on user perceptions of problematic online advertising. · badads.cs.washington.edu, 15 Oct 2026

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