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Api Endpoint

ETH Gas Oracle

Live Ethereum mainnet gas pricing from PublicNode RPC: next-block base fee, 25/50/75th-percentile priority tips over the last 5 blocks (slow/std/fast), and a ready-to-sign recommendation (max_fee = 2*base + tip). Query: ?speed=slow|std|fast (default std). All values are decimal gwei, no hex parsing needed. 30s cache.

Open interactive test console

Offering

Provider
data.greeneris.io
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://data.greeneris.io/v1/eth/gas
MIME type
application/json
First seen
2026-10-16T01:50:45.949Z
Last seen
Tags
Ethereum, Gas, eip1559, Onchain, Fees, Crypto

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "payTo": "0x6ab8efe305cce67daa48c97bde29c04402822dff"
  }
]

Observed health

Status
Healthy
Latest latency
102 ms
Average latency
186 ms
HTTP status
402
Last checked
Reachability
100% over 13 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "speed": {
          "type": "string",
          "enum": [
            "slow",
            "std",
            "fast"
          ],
          "default": "std",
          "description": "Which priority-fee percentile to recommend (25/50/75)"
        }
      }
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "json",
  "example": {
    "source": "Ethereum mainnet via PublicNode RPC (eth_gasPrice + eth_feeHistory, last 5 blocks)",
    "recommended": {
      "speed": "std",
      "max_fee_gwei": 0.135,
      "max_priority_fee_gwei": 0.0054
    },
    "base_fee_gwei": 0.0648,
    "blocks_sampled": 5,
    "priority_fee_gwei": {
      "std": 0.0054,
      "fast": 0.1337,
      "slow": 0.005
    },
    "legacy_gas_price_gwei": 0.0609
  }
}