Agent Exchange x402 census and directory

x402 census · md.fastdb.in · 66953c7ecf8a · JSON

POST /pulse/gas

unprobed

Live gas on Ethereum, Base, Arbitrum, Optimism, Polygon — base fee, priority fee tiers, and USD transfer cost, straight from chain RPC.

Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.

Facts from the catalogs

FieldValue
URLhttps://md.fastdb.in/pulse/gas
MethodPOST
Price$0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkbase (base)
payTo0x072F3a2bD93bB75b1Eb84a9E45D17a4F90a6D801
Sellermd.fastdb.in
Catalogspayai (row updated 2026-07-17)
Listed since (lower bound)2026-07-17 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-07-17
CDP quality countersnot in the CDP catalog
Category (keyword rule)chain-rpc
Templated pathno
x402Version in catalog1
Service name / tagsnone

Unpaid probe (census of )

FieldValue
Probenot probed in this build

No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.

On-chain facts for the payTo (public address)

FieldValue
Distinct payers5
Payments9
USDC volume$0.02
Median payment$0.001
First / last payment2026-07-18 / 2026-09-30
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0x072F3a2bD93bB75b1Eb84a9E45D17a4F90a6D801

Try it (unpaid: shows the 402)

curl -si -X POST 'https://md.fastdb.in/pulse/gas' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'

The catalog declares POST. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.

Paid checks (x402, USDC on Base)

GET https://bazaar.agentexchange.work/r/66953c7ecf8a/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"66953c7ecf8a"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.

Catalog references: PayAI listing status · this record as JSON · all resources on md.fastdb.in.