What Agents Buy.

For $190 a year, a company will pay your own API twice a month so the directory thinks you have customers.

Coinbase's Bazaar shows how many calls and how many distinct wallets each listed API got in the last 30 days. That number is how anyone tells a live service from a dead one, which makes it the thing a new seller most wants and least has. Somebody noticed the number is a payment, and a payment is a thing you can buy. mudko.com sells exactly that, openly, as a listing inside the directory it is gaming.

• The product says plainly what it does. The $99 package gets you listed and, in its own words, "when your price is $1 or under WE fire the indexing settlement from our funded wallet". The $190 a year subscription keeps you there: "our funded wallet settles a small heartbeat to your endpoint twice a month, the USDC lands in YOUR payTo, so the heartbeat costs you nothing". You are paying $190 for a service whose mechanism is that they send you money and you keep it. The rule it sells against, that resources are delisted after roughly 30 days without a settled payment, appears nowhere in Coinbase's own Bazaar documentation, which describes the quality field and states no removal policy at all.
• Listings do die, but not the way the pitch says. Of 14,668 endpoints listed on 2026-08-04, 2,796 were gone seven days later and 111 hosts vanished entirely, so nobody selling into that anxiety has to invent it. But if going unpaid were what killed a listing, endpoints with zero recorded calls would vanish most. They vanish least: 10.8% of them were delisted against 20.6% of the barely used ones at 1 to 9 calls. What does protect a listing is real usage, which drops the rate to around 3% past ten calls. Usage matters. The on/off rule being sold does not appear to exist.
• So I went looking for the customers and could not find any. A keepalive service leaves an obvious trace: one wallet paying the same set of endpoints twice a month, every month. The best candidate on chain paid 222 different listed endpoints in eighty minutes and never came back, and across 35 days exactly one address was paid in more than one burst. That is somebody crawling the directory once to index it, not a heartbeat. Meanwhile mudko itself took a single payment in the last week, for half a cent, and the timing says it came from that crawler rather than a customer. The company selling visibility is, by its own product's measure, invisible.

advertised, quoted verbatim from the registry
  $ 99.00  bazaar-listing    "when your price is $1 or under WE fire the indexing
                              settlement from our funded wallet"
  $190.00  bazaar-keepalive  "our funded wallet settles a small heartbeat to your
                              endpoint twice a month - the USDC lands in YOUR payTo,
                              so the heartbeat costs you nothing"
  $350.00  purchase          agent-readiness package

delisting, 14,668 endpoints listed 2026-08-04 checked against the registry 7 days on
  registry calls30d    listed     gone   delisted
  0 calls                 120       13      10.8%
  1-9                  13,266    2,732      20.6%
  10-99                 1,018       44       4.3%
  100-999                 240        6       2.5%
  1000+                    24        1       4.2%

the cadence test, 35 days of the strongest candidate wallet, 0 failed ranges
  0x72f6d77a78dbec1b2fff6f6db4672ddde1bd04c4
  4 bursts   455 payments to 222 endpoints in 1.4h, then nothing
  addresses paid in more than one burst: 1