Doi check

x402 resource x402 REST

agents.writerslogic.com · agents.writerslogic.com · Search & Research

Provider site ↗

Checks up to 20 DOIs in one call against Crossref (including its Retraction Watch notices), OpenAlex and the doi.org Handle registry. Per DOI: FOUND with title and year, RETRACTED, EXPRESSION_OF_CONCERN, CORRECTED, REGISTERED_NOT_INDEXED, NOT_REGISTERED (no such DOI anywhere: likely fabricated), INV

Price per call 0.005 USDC per call published unit: per call

Calls · 30d — not reported by any source

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

Volume · 30d — Observed Base USDC inflows · not attributable or not measured

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

Trx · 30d — Observed transfers · not attributable or not measured

Attribution blocked. The payout address is also published by 104 other service(s); the volume cannot be attributed to one of them.

Observed inflows · last 30 days

No inflow observed in this window

The payout address is also published by 104 other service(s); the volume cannot be attributed to one of them.

Observed inflows by window for Doi check.
Window	Observed	Transfers
Last complete day (2026-11-04)	—	—
Last 7 days	—	—
Last 30 days	—	—
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: 0 days with a measurement First seen: never 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 Doi check.
Network	Full wallet address	Evidence
Base	0x34c2d4b19b2d61da1ec98a3463b8e9994fb86522	Shared address · activity cannot be assigned to this serviceFrom source record · source: payai

Sending wallets · observed counterparties

No sending wallet addresses have been retained for this service. Buyer wallets are unknown; daily totals and reported payer counts do not reveal their addresses.

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 Search & Research

Exa 9,411 calls · 0.007 USDC per call —
Pocket Network 6,094 calls · 0.005 USDC per call $509.62
Search 4,246 calls · 0.006 USDC per call —
glim.sh 4,016 calls · 0.005 USDC per call —
StableTravel 3,469 calls · 0.02 USDC per call $94.99

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 18,492 services in this category

With a measured call count	10,599 (57.3 %)
With a published price	11,975 (64.8 %)
With attributable inflows	117 (0.6 %)
Observed inflows · 30d	$3,261.71
Median measured calls	2
Median price per call	$0.01