Ad system
pubx.ai
Most of the 37,044 apps that declare pubx.ai reach it through a reseller: 99% have a RESELLER line, 5.2% a DIRECT one (3,687 files, 3,604 of them through BidMachine's account). Of 4,286 lines checked against its sellers.json (519 sellers), 86% match, 8.6% name an unlisted account and 5.4% declare the wrong seller type.
- Apps declaring it
- 37,044
- Sellers in sellers.json
- 519
- Lines verified
- 86%
- Lines with errors
- 610
- Avg. supply path score
- 50.6 / 100
1,921 DIRECT · 36,800 RESELLER
0% confidential
3,722 of 4,334 checked lines
4,334 lines in total
36,527 apps scored
App counts, the sellers.json breakdown and the directory ranking are as of , recomputed daily (the same numbers as the directory). Line counts are recounted every 10 minutes. sellers.json last read 14 October 2026. The supply path score sums up how short and clean the declared paths are, 0 to 100 (how it is computed).
How to add pubx.ai to app-ads.txt
One line per account, in the app-ads.txt at the root of the domain your App Store and Google Play listings name as the developer website.
pubx.ai, YOUR_ACCOUNT_ID, DIRECT
pubx.ai, YOUR_ACCOUNT_ID, RESELLER
- Field 1:
pubx.ai, the domain pubx.ai uses in app-ads.txt. - Field 2: your account ID with pubx.ai. It must equal the
seller_idin pubx.ai's sellers.json. - Field 3: DIRECT if you hold the account, RESELLER if a partner holds it and sells your inventory. DIRECT vs RESELLER
- Field 4 (optional): a certification authority ID. Most lines naming pubx.ai carry none, or different ones, so we do not suggest one.
sellers.json at a glance
- Status
- Published
- Sellers listed
- 519
- Confidential
- 0 (0%)
- Passthrough
- 0
- Removed, last 30 days
- 0
- Last read
- Oct 14, 2026
- PUBLISHER510
- INTERMEDIARY3
- BOTH6
Cross-check of lines naming pubx.ai
- Verified 3,722
- Seller ID not found 374
- DIRECT but intermediary 0
- RESELLER but publisher 236
- Seller type BOTH 2
- Confidential seller 0
- No sellers.json 0
- Unchecked 0
Every line naming pubx.ai is looked up in its sellers.json. What each status means
Common errors with pubx.ai lines
-
Seller ID not found
374 lines
Ask pubx.ai for the account ID it lists for you in its sellers.json, correct the line, or remove it if you no longer work with them. Buyers that check sellers.json drop these paths.
-
RESELLER but publisher
236 lines
If the account is yours, declare it DIRECT. If a partner holds it, ask pubx.ai why the account is listed as PUBLISHER.
-
Seller type BOTH
2 lines
The account is listed as BOTH, so sellers.json alone cannot tell a buyer which relationship applies. Nothing to fix on your side; buyers usually look at the seller's domain.
Intermediaries most declared as RESELLER
Accounts on pubx.ai that its sellers.json lists as INTERMEDIARY or BOTH, by the number of app-ads.txt files declaring them. Confidential sellers are left out.
| Seller domain | Type | Files |
|---|---|---|
| bidmachine.io | INTERMEDIARY | 3,604 |
| imprezia.ai | BOTH | 1 |
Apps that declare pubx.ai
| App | Store | Relationship | Status |
|---|---|---|---|
| iOS | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| iOS | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| iOS | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| iOS | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live |
Questions about pubx.ai
Does pubx.ai publish a sellers.json?
Yes. Its file at https://cdn.pubx.ai/sellers.json listed 519 sellers when we last read it on 14 October 2026: 510 publishers, 3 intermediaries and 6 listed as both; 0% are confidential.
How many apps declare pubx.ai in app-ads.txt?
37,044 apps in Stoqlab's data (delisted apps included) declare pubx.ai: 1,921 with at least one DIRECT line and 36,800 with at least one RESELLER line, across 3,687 app-ads.txt files, as of 14 October 2026 (recounted daily).
Why do pubx.ai lines fail verification?
Of 4,334 lines naming pubx.ai, 610 contradict its sellers.json. The most common case is "Seller ID not found", on 374 lines. Ask pubx.ai for the account ID it lists for you in its sellers.json, correct the line, or remove it if you no longer work with them. Buyers that check sellers.json drop these paths.
Not sure whether your line should say DIRECT or RESELLER? DIRECT vs RESELLER in app-ads.txt
Sources: the public app-ads.txt files of tracked apps and the sellers.json of pubx.ai. Something wrong? Tell us.