Ad system

pubx.ai

Most of the 35,275 apps that declare pubx.ai reach it through a reseller: 99% have a RESELLER line, 5.4% a DIRECT one (3,502 files, 3,419 of them through BidMachine's account). Of 4,052 lines checked against its sellers.json (519 sellers), 86% match, 8.4% name an unlisted account and 5.2% declare the wrong seller type.

Apps declaring it
35,275

1,907 DIRECT · 35,040 RESELLER

Sellers in sellers.json
519

0% confidential

Lines verified
86%

3,681 of 4,281 checked lines

Lines with errors
598

4,281 lines in total

Avg. supply path score
50.6 / 100

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 13 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_id in 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 13, 2026
  • PUBLISHER511
  • INTERMEDIARY3
  • BOTH5

Cross-check of lines naming pubx.ai

  • Verified 3,681
  • Seller ID not found 367
  • DIRECT but intermediary 0
  • RESELLER but publisher 231
  • 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 367 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 231 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.

Common app-ads.txt errors and how to fix them

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 domainTypeFiles
bidmachine.io INTERMEDIARY 3,419

Apps that declare pubx.ai

AppStoreRelationshipStatus
Android RESELLER Live
Android RESELLER Live
Android RESELLER Live
Android RESELLER Live
Android RESELLER Live
Android RESELLER Live
Android RESELLER Live
Android RESELLER Live
Android RESELLER Live
Android RESELLER Live
Android RESELLER Live
Android RESELLER Live
Android RESELLER Live
iOS RESELLER Live
Android RESELLER Live
iOS RESELLER Live
Android RESELLER Live
Android RESELLER Live
iOS RESELLER Live
iOS 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 13 October 2026: 511 publishers, 3 intermediaries and 5 listed as both; 0% are confidential.

How many apps declare pubx.ai in app-ads.txt?

35,275 apps in Stoqlab's data (delisted apps included) declare pubx.ai: 1,907 with at least one DIRECT line and 35,040 with at least one RESELLER line, across 3,502 app-ads.txt files, as of 13 October 2026 (recounted daily).

Why do pubx.ai lines fail verification?

Of 4,281 lines naming pubx.ai, 598 contradict its sellers.json. The most common case is "Seller ID not found", on 367 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.