What the numbers actually say
The public x402 Bazaar catalog at
https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources is the
closest thing the emerging paid-agent internet has to a public
listing surface: any HTTP endpoint gated behind a 402 that routes
through the Coinbase CDP facilitator ends up auto-indexed there.
The natural question, and the one we now publish a downloadable
daily answer to, is whether the count of endpoints in that
catalog is growing.
Over the 39 days from
2026-08-15 to
2026-09-25, the answer is no — not
the way most readers mean it. Item count moved from
15,056 to
17,423, a change of
+15.7%. Read that
naked and it looks like “the catalog is flat.” But
the trough-to-peak swing over the same window was
+33.0%
(trough 13,096, peak
17,423), and the count of
distinct hosts serving those endpoints moved from
1,546 to
2,045
(+32.3%) while the
count of distinct pay_to
addresses moved from
1,417 to
1,704
(+20.3%).
Two shapes fit those numbers. Either the catalog is stagnant and a handful of new hosts are joining while a handful of old endpoints happen to drop out, or the catalog is churning — endpoints are being registered and de-registered at comparable rates so the level stays flat while the set turns over. The intra-window swing distinguishes them: a swing of +33.0% over 39 days on a first-to-last delta of +15.7% is churn, not stagnation. The set of hosts on 2026-09-25 is not the set of hosts on 2026-08-15 — enough entered to lift the host count by +32.3% while item count stayed put. Endpoints are being replaced, not added on net.
Why this framing matters
A flat-but-churning catalog and a growing catalog look identical under a “17,423 endpoints indexed today” snapshot. They differ dramatically under “how many endpoints from 2026-08-15 are still listed?” A citation that quotes the item-count delta naked as market growth would be false in this window — the delta is +15.7%, which rounds to zero. A citation that quotes the raw item count as proof of a “15,000-endpoint economy” is measuring the listing surface, not paid usage. The Report 07 whole-catalog cut of the same source shows only a few percent of that surface has any breadth of paid demand at all.
We publish the daily table so nobody has to take our word for
this shape:
https://onchainagentintel.io/is-the-x402-market-growing renders
the same series live, and
the JSON export and
CSV export carry the same
rows plus a first-class caveats
array so a downstream machine reader cannot quote the
item-count delta naked either.
Scope caveats (read before citing)
One source, not a census. This is a measurement of
the public Coinbase CDP x402 Bazaar catalog at
https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources. Endpoints
gated behind 402 that route through other facilitators, or that
are 402-gated but not registered in this discovery surface, are
not in the sample. The finding is about this catalog; the phrase
“the x402 ecosystem” is out of scope.
CATALOG ≠ PRICED ≠ EARNING. An endpoint being listed in the catalog does not imply it has ever taken a paid call. A 402 challenge is not a buyer. For the earning-side cuts, see /x402-paid-but-unrated and /how-many-x402-endpoints-are-actually-used.
Day representative. Each row uses the LAST
status == "ok" snapshot per UTC
calendar day. Degraded runs are excluded from every figure;
ok_fraction
(100.00% across
1,108 files scanned in
this cache) documents corpus quality across the window.
Window length. 39 UTC days is a snapshot, not a trend. As the corpus grows we will republish this cut against longer windows; the daily dataset at https://onchainagentintel.io/is-the-x402-market-growing is the live source and is always the current-day source of truth.
How to cite this
Headline finding. Across 39 UTC days (2026-08-15 → 2026-09-25), the public Coinbase CDP x402 Bazaar catalog item count moved +15.7% while distinct hosts moved +32.3% and the trough-to-peak intra-window item-count swing was +33.0%. The CATALOG is churning, not accumulating.
Citation.
On-Chain Agent Intel. "The x402 Catalog Churns, It Does Not Grow — Report 09 (2026-09-02)." Series 2026-08-15/2026-09-25. https://onchainagentintel.io/blog/x402-catalog-churn-2026-09
License. Published under CC BY 4.0 — free to reuse, including in commercial work, provided you attribute “On-Chain Agent Intel” and link back to https://onchainagentintel.io/blog/x402-catalog-churn-2026-09.
Machine-readable primary dataset. Live daily series · JSON export · CSV export — same source, same normalization, refreshed daily.