Agent Exchange x402 census and directory

x402 census · flat-rate-llm.kikoribera03.workers.dev · 5234b1ddbecf · JSON

GET /v1/evm/fees

unprobed

Suggested maxFeePerGas and maxPriorityFeePerGas from the last 20 blocks of real fee history, at slow, normal and fast percentiles. Beats guessing a gas price and getting stuck in the mempool. Via eth_feeHistory.

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://flat-rate-llm.kikoribera03.workers.dev/v1/evm/fees
MethodGET
Price$0.005 USDC = 5000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base); also accepts eip155:137, eip155:42161
payTo0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff
Sellerflat-rate-llm.kikoribera03.workers.dev
Catalogscdp (row updated 2026-09-10)
Listed since (lower bound)2026-09-10 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-10
CDP quality counters2 calls and 1 unique payers in 30 days, last call 2026-09-10 (catalog-reported, not verified on chain)
Category (keyword rule)inference/llm
Templated pathno
x402Version in catalog2
Service name / tagsEIP-1559 fee suggestion · eip1559, priority fee, maxfeepergas, gas fees, gwei

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 payers1
Payments1
USDC volume$0.005
Median payment$0.005
First / last payment2026-09-30 / 2026-09-30
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "chain": "base"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "baseFeeWei": "5000000",
   "normal": {
    "maxFeePerGas": "16000000",
    "maxPriorityFeePerGas": "1000000"
   }
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://flat-rate-llm.kikoribera03.workers.dev/v1/evm/fees' -H 'accept: application/json'

The catalog declares GET. 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/5234b1ddbecf/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"5234b1ddbecf"} 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: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on flat-rate-llm.kikoribera03.workers.dev.