A data co-op for marketers
Know what good looks like.
Your AI assistant can read your own ad account. It cannot see anyone else’s. Markindex gives it the rest of the market: real, anonymised ad accounts, as they look right now.
Sign up freeSee example questions
Free plan. Read only. Meta ads for now.
Example
You ask your assistant: “How are my ads doing?”
Your cost per lead rose 18% this month. So did everyone else’s. You’re still in the top third.
- Your cost per lead
- $47.20
- +18% in 30 days
- Market, middle value
- $59.00
- +18% in 30 days
- Your position
- Top third
- Better than the market
Cost per lead, last 30 days Lower is better
- You
- Market, middle value
- Middle third of peers
Show the numbers
| When | You | Market | Middle third of peers |
|---|---|---|---|
| 30 days ago | $40.00 | $50.00 | $45.00 to $55.00 |
| 20 days ago | $42.69 | $52.42 | $47.18 to $57.66 |
| 10 days ago | $44.17 | $56.32 | $50.69 to $61.95 |
| Today | $47.20 | $59.00 | $53.10 to $64.90 |
Works in Claude and ChatGPTReads Meta ads
What you get
Features
The market, in the assistant you already use.
What you can ask
Where you are in the mix, how top performers set up their accounts, what they say in their ads, what they do each week and what is changing right now.
What you get back
An answer worked out from live ad accounts, in the chat where you asked. Your assistant can say which kind of accounts it covers, how many, and which period.
How it works with your assistant
You add Markindex to the assistant you already use, such as Claude or ChatGPT, by signing in. It searches the index when your question is about the market.
How it works
Up and running in three steps
Create your user
Sign up with your email, and create the business you advertise for.
Connect your Meta ad account
Markindex only reads. It never changes anything in your ad account.
Ask your assistant
Add Markindex to Claude or ChatGPT by signing in, and ask as you always do.
The difference
What your assistant cannot tell you on its own
| Your assistant alone | With Markindex | |
|---|---|---|
| Your own account | Reads it through Meta’s own connector. That part works well. | The same. We leave your own numbers to Meta. |
| Everyone else | Searches the web. When we tested it in October 2026, a “2026 benchmark” for B2B cost per click came from a 2017 study of 256 US advertisers. | Searches the index: live ad accounts, connected by the marketers who run them. |
| Can you check it? | No. The answer reads well and comes with sources, but the numbers cannot be checked. | Yes. It can say which kind of accounts an answer covers, how many, and which period. |
| What you learn | A generic average. | What peers do: how they set up their accounts, what they change each week, and what works for them. |
Try it
Example questions
Copy one and ask your own Claude or ChatGPT. See if you are satisfied with the answer.
Am I among the top performers, in the middle or at the bottom of my peer group?
Which of Meta’s automation and AI settings do top performers have switched on?
What are accounts with a lower cost per lead than mine offering to get people to sign up?
What did accounts with falling costs do in the weeks before their costs started falling?
What has changed in my peers’ behaviour over the last 30 days?
Trust
Where the answers come from
Members connect their ad accounts
Together, those accounts are the index.
Everything is anonymised
No names of companies, accounts, campaigns or ads. We never say who is doing well.
We only read
Markindex never changes anything in your ad account.
Real and current
Answers come from live ad accounts, not from surveys, articles or old reports.
Why Markindex
I went from 200 ad accounts to one.
At a consultancy I had access to more than 200 Facebook ad accounts. I knew what a good click-through rate, cost per click and return on ad spend looked like, and what the best accounts did differently each week. Then I went in-house, to one account. Within months, that picture was gone.
Markindex is the view I lost, for every marketer who works on one account.
Steffen Grøn Andersen, founder · LinkedIn
Plans
Pricing
One plan per business, with any number of users and ad accounts.
Free
$0 a month
- 30 MCP calls a month, shared by everyone in the business.
- Unlimited users
- Unlimited ad accounts
- Your data is part of the index.
One plan per business, with all ad platforms. Paid plans with no cap come later, once the index has grown.
Questions
Before you sign up
Who can see my ad account?
Your ad account becomes part of the index, anonymised. No names of companies, accounts, campaigns or ads are in it, and we never say who is doing well.
Can Markindex change anything in my ad account?
No. Markindex only reads. It never changes anything in your ad account.
Which assistants does it work with?
Claude and ChatGPT, and other assistants that can add an MCP server. The same Markindex user works in all of them, so you are not tied to one.
Do I still need Meta’s own connector?
For your own numbers, yes. Reporting on your own account is the job of Meta’s connector, and we recommend you use it next to Markindex. Markindex tells you where you stand and what everyone else is doing.
Which ad platforms are covered?
Meta only for now. Google Ads, TikTok Ads and others may come later.
What happens to my data when I leave?
We delete it. It is removed from the index at once, and from our backups within 30 days.
See where you stand.
Connect your Meta ad account, and ask your assistant how you compare with accounts like yours.
Sign up free