Discover / base-gas-x402-production.up.railway.app

base-gas-x402

■ Challenge detected

Live Base mainnet gas oracle: EIP-1559 base fee, low/medium/high priority tiers in gwei, and the cost of any transaction in USD and ETH.

x402
Base
USDC
Blockchain

Listed price: $0.002
Challenge detected: 6 of the last 10 checks
Median response: 132 ms
Last checked: 16 Oct, 18:49 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://base-gas-x402-production.up.railway.app/gas
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

3 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://base-gas-x402-production.up.railway.app

GET/gas/compare$0.01Live gas cost comparison across Base, OP Mainnet, Arbitrum One, and Ethereum in one call, ranked cheapest first.
GET/gas/cheapest-window$0.02Cheapest hours of day to transact on Base, from collected gas history: hourly averages in UTC ranked cheapest first, plus the savings percent.
GET/gas$0.002Live Base mainnet gas oracle: EIP-1559 base fee, low/medium/high priority tiers in gwei, and the cost of any transaction in USD and ETH.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 3 of 3 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/base-gas-x402-production.up.railway.app

Recent checks

26 Sept 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.16 Oct 2026

All 10 checks

When (UTC)	Result	HTTP	Response
16 Oct, 18:49 UTC	Challenge detected	402	107ms
15 Oct, 14:11 UTC	Challenge detected	402	237ms
14 Oct, 05:00 UTC	Challenge detected	402	121ms
13 Oct, 10:39 UTC	No challenge detected	200	156ms
11 Oct, 10:02 UTC	No challenge detected	200	127ms
9 Oct, 21:31 UTC	No challenge detected	200	105ms
8 Oct, 15:35 UTC	No challenge detected	200	318ms
7 Oct, 09:33 UTC	Challenge detected	402	142ms
6 Oct, 09:33 UTC	Challenge detected	402	167ms
26 Sept, 17:02 UTC	Challenge detected	402	101ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 18:49 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for base-gas-x402?

Its listed price is $0.002.

What payment terms does base-gas-x402 advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is base-gas-x402 listed?

In x402 Bazaar and x402-list.com. Superstables first indexed it on 26 Sept 2026.

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