Upgrade check

x402 resource x402 REST

changefeed.anthonyzilar.workers.dev · changefeed.anthonyzilar.workers.dev · Dev & Code

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Given a package and the version an agent's code targets, returns breaking changes and deprecations between that version and the latest tracked release.

Price per call 0.01 USDC per call published unit: per call

Calls · 30d 1 counted by the source, no daily split

Buyers · 30d 1 Observed sending wallets · Base USDC · partial sender history · purchases unverified

Volume · 30d $0.01 Observed Base USDC inflows · 30 of 30 complete UTC days measured · lower bound

Inflow growth · 7d — not comparable (baseline under $1 or window incomplete)

Trx · 30d 1 Observed transfers · 30 of 30 complete UTC days measured · not verified purchases

Observed inflows · last 30 days

$0.01USD observed / day

2026-10-06grey = not scanned · UTC days2026-11-04

Observed inflows by window for Upgrade check.
Window	Observed	Transfers
Last complete day (2026-11-04)	$0.01	1
Last 7 days	$0.01	1
Last 30 days	$0.01	1
Growth, 7d against the 7 before	not comparable

Source: on-chain transfer scan (USDC on Base) Window: 2026-10-06 → 2026-11-04 Scanned: 30/30 days Sample: 30 days with a measurement First seen: 2026-10-06 Last update: 2026-11-04

Daily history →. Observed transfers show value arriving at the payout address; they do not establish service revenue.

Blockchain wallets

Full addresses · public payment evidence

Receiving wallets are payment addresses published for this service. Sending wallets transferred funds to an exclusive receiving address; this alone does not prove a purchase or identify an agent.

Receiving wallets · provider payment addresses

All published receiving wallet addresses for Upgrade check.
Network	Full wallet address	Evidence
Base	0xb2bfa671b14feaff42ba098b3a09b296d8efb303	Exclusive to this catalogue serviceFrom source record · source: x402_bazaar

Sending wallets · observed counterparties

Showing 1–2 of 2 matching addresses · 2 retained in total. Source: on-chain transfer scans. Dates are UTC days.

All retained sending wallet addresses observed for Upgrade check.
Network	Full wallet address	Transfers	First / last observed	Last scanned (UTC)
Base	0x59497d47c8bb09e37fc96c9e999fe9254e2e38bc	1	2026-11-04 / 2026-11-04	2026-11-05 02:38:15
Base	0xc9c7b38c0942914fc8ea12063bc92dcd3b581670	1	2026-11-05 / 2026-11-05	2026-11-05 02:39:23

Coverage includes retained scans only, not every historical transaction. Earlier daily totals cannot recover sender addresses. Sender lists exclude shared receiving wallets, whose transfers could belong to another service. A provider address does not establish wallet ownership.

Competitors & category benchmark

Rank the whole category →

Closest competitors Dev & Code

GitHub Repo & User Data 147 calls · 0.02 USDC per call —
Read contract 72 calls · 0.006 USDC per call —
VIN decoder (NHTSA) 71 calls · 0.004 USDC per call —
Skill: Decode this blob 68 calls · 0.007 USDC per call —
Decode 65 calls · 0.01 USDC per call $0.69

Sorted by source-measured calls, not by our opinion. The right-hand figure is observed inflow, which stays empty for peers whose address is shared.

Category benchmark 3,381 services in this category

With a measured call count	981 (29.0 %)
With a published price	1,276 (37.7 %)
With attributable inflows	31 (0.9 %)
Observed inflows · 30d	$159.56
Median measured calls	2
Median price per call	$0.01