Roundhouse
Onchain Data

Gas price

Read the current gas price for a chain. Priced per read.

Spot price
$0.0031per read
call-weighted across 155 of 168 priced endpoints
Spread
100×
cheapest to dearest
Providers
109
117 hosts
Endpoints
168
146 answered last probe
Where the offers sitLog scale. The shaded band is the middle half of the market, $0.0010 to $0.0050.
$0.0010$0.100

Every supplier below carries its index against that rate: 100 is spot, 40 is 60% below it, 310 is 3.1× it. Spot is weighted by how often each endpoint is called, so one wallet listing forty near-identical endpoints cannot move it on listings alone. The cheapest offer here is $0.0010 and the dearest $0.100.

Canonical request
chainstringCAIP-2 chain id.
Canonical response
chainstringThe chain read.
base_fee_gweinumberCurrent base fee in gwei.
priority_fee_gwei?numberSuggested priority fee in gwei.
as_ofstringISO 8601 observation time.

168 endpoints offering this capability, from 109 wallets

EndpointIndexLast called
Gas Analytics API
orbisapi.com/proxy/gas-analytics-api-ed0106$0.005016221Offline133d ago
Gas Fee API
orbisapi.com/proxy/gas-fee-api-9ac144$0.005016211Offline133d ago
Gas Fee Estimator API
orbisapi.com/proxy/gas-fee-estimator-api-332bd6$0.005016211Offline154d ago
Gas Fee Estimator API
orbisapi.com/proxy/gas-fee-estimator-api-a96f58$0.0050162——Offline—
Gas Optimizer API
orbisapi.com/proxy/gas-optimizer-api-4f7b83$0.005016281Offline135d ago
Gas Optimizer API
orbisapi.com/proxy/gas-optimizer-api-4f7b83/v1/gas/now$0.005016200Offline—
Gas Pattern Analyzer API
orbisapi.com/proxy/gas-pattern-analyzer-api-665b3b$0.005016221Offline133d ago
Gas Price Convert
orbisapi.com/proxy/gas-price-convert-7f80c4$0.005016221Offline135d ago
Gas Price Predictor API
orbisapi.com/proxy/gas-price-predictor-api-04ae39$0.005016211Offline154d ago
Gas Price Strategy Advisor API
orbisapi.com/proxy/gas-price-strategy-advisor-api-621ac1/:endpoint$0.005016242Offline143d ago
Gas Price Tracker API
orbisapi.com/proxy/gas-price-tracker-api-99edf8$0.005016211Offline154d ago
Farm Distress Mesh
trade-production-180b.up.railway.app/gas$0.0050162323Live39d ago
onchain-gas
webtools402.176-109-107-191.sslip.io/gas$0.005016241Live119d ago
x402-seller-0ay3.onrender.com
x402-seller-0ay3.onrender.com/api/chain/gas$0.005016211Live15d ago
Skill: Gas optimizer
agent402.tools/api/skill/gas-optimizer$0.007022773Live3d ago
Gas Oracle
402.com.tr/api/x402/gas-oracle$0.01032595Live3d ago
Multi-Chain Gas Compare
402.com.tr/api/x402/multi-chain-gas$0.01032552Live6d ago
aether-x402.vercel.app/v1/base/gas$0.01032562Live11d ago
Arbitrum One gas price
agent-data-tools.revmesh2074.workers.dev/arb/gas$0.01032532Live1d ago
Ethereum gas price
agent-data-tools.revmesh2074.workers.dev/eth/gas$0.01032542Livetoday
Optimism gas price
agent-data-tools.revmesh2074.workers.dev/op/gas$0.01032532Live1d ago
Polygon PoS gas price
agent-data-tools.revmesh2074.workers.dev/polygon/gas$0.01032532Live1d ago
DDG Agent-Payable Services
agents.daedalusdevelopmentgroup.com/v1/base/gas$0.01032511Live3d ago
x402 Gas Price Oracle
agentx402pay.com/api/gas-price$0.01032532Live4d ago
Live EVM Gas Price
ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/gas_oracle$0.01032543Live4d ago

Reading this table

Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will pick the best provider of this capability over the free read API. No key, no account.

GET roundhouseai.io/unified.json?capability=gas-price

Open skill.md
Show the prompt
Using Roundhouse, compare every x402 provider of Gas price and pick one for me.
Weigh the price per unit against whether the endpoint answered when last probed, and say
what the cheapest option would cost against the median.

curl -s 'https://roundhouseai.io/unified.json?capability=gas-price'

The canonical request and response in that document are the shape every provider is
mapped onto. Before paying, check the provider's record and read the live 402:
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet on the offer you choose>'

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.