resources/markt/POST /gas
POSTorigin + 2 sourcesqualified signals

https://markt.halowerk.com/gasPOST /gas · x402 API by markt

Reads eth_feeHistory over the last ten blocks with reward percentiles 25, 50 and 75, and falls back to eth_gasPrice when a node does not serve fee history. base_fee_gwei is the base fee of the next block, not of the last one, because that is the fee a transaction sent now will actually pay. recommended_gwei is a bid, not an observation: priority at the median plus a base fee doubled to survive several full blocks, and the rule is stated in recommended_rule. cost_usd converts that into dollars fo

https://markt.halowerk.com/gas

What does this x402 API do?

https://markt.halowerk.com/gas. This is an x402-gated POST API resource from markt. TOLL·402 did not invoke this route automatically because doing so was not considered safe. No normalized USD price is recorded; the listing names Base. No settled paid call has been verified.

Published price
No normalized USD price is recorded
Networks
Base
Latest evidence
TOLL·402 did not invoke this route automatically because doing so was not considered safe
Resource ID
d6b8f66402e85afd7f38e0e8
USE THIS RESOURCE

Start with a quote-only recipe. Payment signing stays in your project.

CODE
AI CODING TOOLS
quote-check.ts
const response = await fetch("https://markt.halowerk.com/gas", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
  "type": "http",
  "method": "POST",
  "bodyType": "json",
  "bodyFieldNames": [
    "action",
    "chain"
  ],
  "pathParamNames": [],
  "queryParamNames": []
}),
});

console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));

// A valid 402 is a quote, not a completed paid call.

Review the provider input schema before running this non-read-only method. No payment code is included.

STATUS HISTORY

  1. Exact route checked

    not safely testable · potentially-mutating-method:POST

  2. Observed in cdp-bazaar

    The registry record was observed and retained with provenance.

  3. Observed in 402-index

    Discovered through bazaar.

  4. Registry record checked

    Registry health: healthy.

  5. Origin reachable

    HEAD https://markt.halowerk.com/ returned 200.

What evidence supports this listing?

cdp-bazaarobserved 2026-08-25 · open source record ↗
402-indexobserved 2026-08-25 · open source record ↗
origin checkHEAD https://markt.halowerk.com/ → 200 on 2026-08-24
route quotenot invoked automatically · potentially-mutating-method:POST · 2026-08-25

Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →

Which networks and payment options does it accept?

The normalized listing price is No normalized USD price is recorded. Raw protocol requirements remain visible below for implementation and audit use.

Baseexact3000 atomic · 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
markt POST /gas · d6b8f6 x402 API · TOLL·402