MARKET MONITOR / CATALOGUE Services 138,997 MCP listed 41,666 x402 97,434 Rails Base / Solana / Polygon / Arbitrum Imported 2026-11-02 · 3 sources
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Daily transfers, volume and coverage →

Citation

x402 resource x402 REST

factstamp.agentrails.workers.dev · factstamp.agentrails.workers.dev · Search & Research

Check a citation before repeating it. Give a DOI, an arXiv ID or a paper title; the answer says whether the work exists, what it is (title, authors, year, container) and whether it has been retracted. A title that is absent from both Crossref and arXiv returns not_found, and a near title match is ne

Price per call 0.02 USDC per call published unit: per call
Calls · 30d 6 counted by the source, no daily split
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 20 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 20 other service(s); the volume cannot be attributed to one of them.

Observed inflows by window for Citation.
Window Observed Transfers
Last complete day (2026-11-01) — —
Last 7 days — —
Last 30 days — —
Growth, 7d against the 7 before not comparable
Source: on-chain transfer scan (USDC on Base) Window: 2026-10-03 → 2026-11-01 Scanned: 30/30 days Sample: 0 days with a measurement First seen: never Last update: 2026-11-01

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 Citation.
NetworkFull wallet addressEvidence
Base 0xc3bcd24a2b350cc73b8516b2a0539a323b42cc32 Shared address · activity cannot be assigned to this serviceFrom source record · source: x402_bazaar

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 9,077 calls · 0.007 USDC per call —
  • Pocket Network 5,901 calls · 0.005 USDC per call $465.69
  • StableTravel 4,041 calls · 0.02 USDC per call $107.29
  • Search 3,728 calls · 0.006 USDC per call —
  • Search 2,479 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 17,915 services in this category
With a measured call count 10,206 (57.0 %)
With a published price 11,548 (64.5 %)
With attributable inflows 112 (0.6 %)
Observed inflows · 30d $3,436.21
Median measured calls 2
Median price per call $0.01