Deprecation check

x402 resource x402 REST

dep.halowerk.com · dep.halowerk.com · Other services

Provider site ↗ How sources are measured

Checks current registry metadata for deprecated, yanked or removed releases. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.

Price per call 0.003 USDC per call published unit: per call

Calls · 30d 2 counted by the source, no daily split

Payers · 30d 2 distinct paying addresses seen by the source

Observed inflows · 30d — not attributable

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

Payment evidence Attribution blocked confidence: low · read 2026-10-27

Where you can pay

1 route from the provider's payment requirements

Payment networks and amounts published for Deprecation check.
Network	Scheme	Amount	Asset
Base	exact	0.003	USDC

“exact” is the price per call. “upto” is a ceiling the client sets, not a price. Atomic amount 3000 = 0.003 USDC per call on Base.

What you can call

access: payment per call (x402)

endpoint https://dep.halowerk.com/v1/deprecation-check

Request

{
    "body": {
        "ecosystem": "crates",
        "name": "serde"
    },
    "bodyType": "json",
    "method": "POST",
    "type": "http"
}

Examples are the provider's own, not a call we made.

Observed inflows · last 30 days

No inflow observed in this window

The payout address is also published by 580 other service(s); the volume cannot be attributed to one of them.

Observed inflows by window for Deprecation check.
Window	Observed	Transfers
Last complete day (2026-10-28)	—	—
Last 7 days	—	—
Last 30 days	—	—
Growth, 7d against the 7 before	not comparable

Source: on-chain transfer scan (USDC on Base) Window: 2026-09-29 → 2026-10-28 Scanned: 30/30 days Sample: 0 days with a transfer First seen: never Last update: 2026-10-28

Daily history → · what a transfer does and does not prove

Opportunity insights

2 findings from measured data

Payment attribution is blocked

The payout address is shared with 580 other service(s). That is normal for facilitator and platform addresses, and it is why this profile shows no inflow figure. The volume exists — it just cannot be split without inventing a rule.
How attribution works →
Category benchmark

91 of 15,502 services (0.6%) in Other services have attributable inflows; 2,094 have a source-measured call count. Median measured calls: 2.
Rank this category by observed inflows →

What the provider says

Quoted from x402 Bazaar · source record · read 2026-10-27

Facts and where they come from

Price: 0.003 USDC per call Provider claim
Recorded value: 0.003 USDC per call.
Unit: per call
Protocol: x402, REST · transport: HTTP Provider claim
Auth: x402
Endpoint: https://dep.halowerk.com/v1/deprecation-check
Source: x402 Bazaar (Coinbase CDP) · Public discovery API (provider-published records)
Last checked: Not checked by us yet — the data is as the source published it
First seen: 2026-10-24
Usage: 2 calls · 2 unique payers in the 30 days before 2026-10-27. Measured by the x402 Bazaar, not by us and not by the provider.

Money, and what it actually proves

Verified revenue · 30d Unknown

Observed inflows · 30d —

Attribution Shared

Receipt ledger Not connected

Attribution blocked · confidence low
The payout address is also published by 580 other service(s); the volume cannot be attributed to one of them.

Why revenue is “unknown”. A revenue figure needs a receipt: an amount a buyer actually paid for this service. We hold none for this entry, and we hold no funds at all. What we have instead is an activity value of $0.01 — the source's call count multiplied by the published price. That is what the list price implies, not what anyone paid. The payout address is also published by 580 other service(s); the volume cannot be attributed to one of them.

Daily market statistics — the ledger view, day by day

No daily history has been archived for this service yet. Open the full daily history →

Payment rails

Base · exact · USDC

0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E

0.003 USDC

From source record

A payment rail is where the provider asks to be paid. It is not proof that anything was paid through it. See evidence levels.

Provenance

One row per statement. “Verified” means we checked it ourselves and the finding is quoted. “Provider claim” means we read it in the provider's own record. “Not found” is a statement about our search, not proof of absence.

Statement	Status	What we found	Source	Checked
Endpoint	Provider claim	https://dep.halowerk.com/v1/deprecation-check Evidence Als Resource-URL im Bazaar-Eintrag geführt.	api.cdp.coinbase.com	2026-10-27
Input output	Provider claim	Request/response examples published with the listing Evidence Beispiel-Ein- und -Ausgabe stammen aus dem Bazaar-Eintrag des Anbieters.	api.cdp.coinbase.com	2026-10-27
Payment	Provider claim	1 rail: Base · payee 0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E Evidence Aus den `accepts`-Einträgen: Netzwerk, Asset, Empfängeradresse und Betrag. Die Adresse ist die Grundlage der späteren On-Chain-Zuordnung; sie ist noch nicht durch eine eigene 402-Antwort bestätigt.	api.cdp.coinbase.com	2026-10-27
Pricing	Provider claim	0.003 USDC per call Evidence Atomic amount 3000 = 0.003 USDC per call on Base. Netzwerk: Base.	api.cdp.coinbase.com	2026-10-27
Protocol	Provider claim	x402 (HTTP 402 payment challenge) Evidence Im x402 Bazaar als zahlungspflichtige HTTP-Ressource gelistet (x402Version 2, Typ http).	api.cdp.coinbase.com	2026-10-27
Provider	Provider claim	dep.halowerk.com Evidence Die Ressource wird unter diesem Host im x402 Bazaar geführt; die Angaben stammen vom Anbieter.	api.cdp.coinbase.com	2026-10-27
Usage	Verified	2 calls / 2 unique payers in the last 30 days Evidence Source-reported usage from Coinbase x402 Bazaar, read on 2026-10-27. Letzter Aufruf laut Quelle: 2026-10-08T05:40:33.412Z. Aufrufe sind kein Umsatz.	api.cdp.coinbase.com	2026-10-27

Endpoint checks

We have not called this endpoint yet. Until we do, everything above is what the source published — no more.

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Price

0.003 USDC per call

price checked 2026-10-27 Open at dep.halowerk.com

You buy from the provider, not from us. This page takes no payment, holds no funds and stores no wallet keys.

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Competitors & category benchmark

Rank the whole category →

Closest competitors Other services

Send native 14,616 calls · 0.05 USDC per call —
Submit 3,515 calls · 0.002 USDC per call —
Hash 503 calls · 0.002 USDC per call —
Horror Story API 467 calls · 0.01 USDC per call $4.61
Gas now 441 calls · 0.001 USDC per call —

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 15,502 services in this category

With a measured call count	2,094 (13.5 %)
With a published price	3,440 (22.2 %)
With attributable inflows	91 (0.6 %)
Observed inflows · 30d	$116.12
Median measured calls	2
Median price per call	$0.01

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Send native x402 REST usage

Pay the send-native execution fee (native coin transfer)

keyring-agent.blockchhub.link Other services 14,616 calls / 30d checked 2026-10-29

0.05 USDC per call per call

Submit x402 REST usage

Chainlink For Agents: submit a signed operation payload.

agents.chain.link Other services 3,515 calls / 30d checked 2026-10-29

0.002 USDC per call per call

Hash x402 REST usage

Compute a SHA-256, SHA-384, or SHA-512 digest of UTF-8 text; returns hexadecimal output (default SHA-256).

apex-edge-coral.vercel.app Other services 503 calls / 30d checked 2026-10-29

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Horror Story API x402 REST usage

Access the exclusive horror story collection (pay-per-read).

horrorstoryapi.vercel.app Other services 467 calls / 30d checked 2026-10-29

0.01 USDC per call per call

Chosen by category and by whether we have measured them, not by who pays us. A sponsored placement in this list is labelled as such.