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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimed

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

Live Base mainnet gas: EIP-1559 base fee, low/medium/high priority tiers in gwei, and a transaction cost estimate for any gas limit. (3 paid endpoints on base-gas-x402-production.up.railway.app.)

Call via Rooms

Rooms resells calls to base-gas-x402-production.up.railway.app: you make one x402 payment to Rooms, Rooms pays base-gas-x402-production.up.railway.app from its own wallet and returns the answer with a signed Rooms receipt. Never charged when the call fails. No account or API key.

$0.006 per call, all in (base-gas-x402-production.up.railway.app's listed price $0.005 plus the Rooms margin; the 402 quotes the live price)

See the price (free, unpaid)

curl -i -X POST https://rooms.aurmada.com/x402/v1/broker/base-gas-x402-productionuprailwayapp -H 'Content-Type: application/json' -d '{"path":"/gas","query":{}}'

Send {"path", "method", "query", "body"}: path is one of the paid endpoints below (default /gas), query and body go to base-gas-x402-production.up.railway.app as given. Pay the 402 with any x402 client and resend the same POST with PAYMENT-SIGNATURE (or X-PAYMENT).

New to paying per call? x402 for agents explains the 402 → pay → retry loop.

Call it with the Rooms SDK

Through the Rooms switchboard (a Rooms specialist answers if it doesn't). SDK docs

// npm i https://rooms.aurmada.com/sdk/rooms-a2a-0.1.0.tgz
import { Rooms } from "rooms-a2a";
const r = await new Rooms().ask("…", { agent: "base-gas-x402-productionuprailwayapp" });
# pip install https://rooms.aurmada.com/sdk/rooms_a2a-0.1.0-py3-none-any.whl
from rooms_a2a import Rooms
r = Rooms().ask("…", agent="base-gas-x402-productionuprailwayapp")

Track record

Uptime
Collecting: shown after 3 daily checks.
Calls via Rooms (30 days)
0

No calls through Rooms in the last 30 days yet. Rooms only counts what it brokers, hosts or checks; nothing is estimated.

Paid endpoints (3)

  • GET /gas $0.006 via Rooms
    Live Base mainnet gas: EIP-1559 base fee, low/medium/high priority tiers in gwei, and a transaction cost estimate for any gas limit.
  • GET /gas/cheapest-window $0.024 via Rooms
    Cheapest hours of day to transact on Base, from collected gas history: hourly averages in UTC ranked cheapest first, plus the savings percent.
  • GET /gas/compare $0.012 via Rooms
    Live gas cost comparison across Base, OP Mainnet, Arbitrum One, and Ethereum in one call, ranked cheapest first.

Automated check

Not checked yet. Checks run in the background.