X402/REGISTERas of 07-22 03:46 UTC
B

api.agentfeeds.jp

87.9 / 100 · rank 1246 of 1527
last 120 hours · short tick = valid 402 · full tick = invalid or no answer · faint = not probed
score components (0-100) · not the raw measurements below
Availability84
Latency67
Price integrity100
Protocol100
Consistency100
Availability is the one component that is a success rate, so it alone carries an evidence discount: it enters as the 95% Wilson lower bound of the measured share (cubed), which is why its bar reads below the raw percentage above — thin evidence scores below a long proven record. Latency, price, protocol and consistency are direct measurements, shown as-is.
Availability (valid 402 returned)100.0% of 64 probes · single vantage
Median 402 handshake777ms
p90 handshake1036ms
Catalog price (advertised)$0.003
Live price (median demanded)$0.003
Price statusmatch
Protocolx402 v2
Category (our classification)finance-crypto
Payment receiver0x67AC…3EA6 · stable since Jul 12
Base USDC settlement to this receiver wallet (30d' measured by us)x402-plausible (amount matches a listed price): $0 · 53 transfers · 3 distinct senders. All USDC inflow' upper bound incl. non-x402: $0 · 53 transfers.
Discovery (.well-known/x402)not found
Catalog volume (their metric)1 calls/30d

listed products (catalog path · advertised price · live price we measured)

/v1/chain/base/tx_receipt$0.002$0.002 (matches)
/v1/chain/gas/base$0.002$0.002 (matches)
/v1/dex/spreads/history$0.01$0.01 (matches)
/v1/dex/spreads/summary$0.002$0.002 (matches)
/v1/reg/events/aml$0.02$0.02 (matches)
/v1/reg/fsa/license_check$0.005$0.005 (matches)
/v1/reg/sanctions/check$0.002$0.002 (matches)
/v1/reg/sanctions/global$0.005$0.005 (matches)
/v1/reg/sanctions/jp/diff$0.005$0.005 (matches)
/v1/reg/sanctions/ofac/diff$0.01$0.01 (matches)

and 21 more listed paths

grade evidence: hourly probes of /v1/dex/wrapped/parity. Availability, latency and protocol measure the operator's shared infrastructure and generalize across its products; the price check applies to the probed product. We now also probe one other product per hour, rotating; "live price we measured" shows what each answered. This operator lists 31 products; the grade is evidence from a small sample of them.

event log (from our catalog snapshots and probes)

2026-07-19 17:20price changed $0.02 → $0.003
Seller description of the probed product (one of 31 listed) · unverified · not part of the rating

Wrapped-BTC parity monitor on Base: WBTC/cbBTC on-chain pool price vs 1:1 parity, in bps, plus consecutive-minute streak beyond a deviation threshold. Useful for collateral-acceptance decisions between BTC wrappers of the same underlying asset. Descriptive …

Embed this grade (free, always current)
x402 register grade B
<a href="https://x402register.com/s/api.agentfeeds.jp.html"><img src="https://x402register.com/badge/api.agentfeeds.jp.svg" alt="x402 register grade B"></a>

What this grade does and doesn't measure: it scores the paid-request handshake — whether the service returns a spec-valid 402 payment challenge, how fast, and whether its price is honest. We do not pay these endpoints yet, so we do not verify that the paid response returns correct or complete content. Availability is a probe success rate measured hourly, from a single network vantage for this service.

Operator of api.agentfeeds.jp? Dispute this rating. Scores are opinions based on automated measurements at the stated times.