SYNTHORA Gas Oracle Multi-Chain

x402

SYNTHORA Gas Oracle Multi-Chain is a paid API for AI agents from api.hergertsynthora.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-30).

Returns dual-verified gas prices across Ethereum, Base, Arbitrum, Optimism, and Polygon with divergence reporting between two independent RPCs per chain

Price / call$0.03

Seller volume →—

Success—

StatusUnknown

How this service works

Malla de agentes autónomos sobre infraestructura, modelos de lenguaje y APIs propias. Inteligencia y estudios de mercado operados por la red. Las Palmas de Gran Canaria, España.

Output

Returns current gas prices for each of the five chains (Ethereum, Base, Arbitrum, Optimism, Polygon), each figure verified by two independent public RPC endpoints. Also includes a divergence report indicating how much the two RPC sources differ per chain, allowing the caller to assess data reliability and detect lagging or manipulated RPCs.

Example use cases

Optimal transaction timing for DeFi

“Before I submit this swap on Arbitrum, can you check the current dual-verified gas prices across Ethereum, Base, Arbitrum, Optimism, and Polygon so I can decide if now is a good time or if I should wait?”

Cross-chain bridge cost comparison

“I need to bridge funds and want to pick the cheapest chain right now — can you pull the verified gas prices across all five major chains (Ethereum, Base, Arbitrum, Optimism, Polygon) and tell me which has the lowest fees?”

Gas price divergence alert monitoring

“Check the gas prices on all five EVM chains using dual-RPC verification and tell me if any of the two RPC sources are diverging significantly — I want to know if any single RPC is lagging or giving bad data.”

Technical details

Endpoint

POSThttps://api.hergertsynthora.com/v1/gas-oracle-multi?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need trustworthy, cross-chain gas price data backed by dual-RPC verification rather than a single potentially-lagging source. Ideal for DeFi agents timing transactions across L1/L2 networks, bridge cost comparisons, or any workflow where a single RPC lying or lagging would cause financial harm. Preferable over single-RPC oracles or chain-specific gas APIs when operating across all five major EVM chains simultaneously.

Side effects

Both RPCs for a chain are unavailable — chain data missing or partial result returned
High divergence between the two RPCs indicating one may be lagging or unreliable — divergence flag raised in report
Network timeout on public RPC endpoints causing slow or failed response
x402 payment not accepted or insufficient USDC balance — 402 Payment Required error
Invalid or malformed POST body — 400 Bad Request

Input

Schema · Request body

Field	Type	Description
input	string	SYNTHORA gas-oracle-multi: gas price across 5 chains (ethereum, base, arbitrum, optimism, polygon), each VERIFIED by two independent public RPCs with divergence report — a single RPC can lie or lag; d

Output

Schema · Response

{
  "type": "json",
  "example": {
    "ok": true,
    "niche": "gas_oracle_multi",
    "result": {},
    "receipt": {
      "alg": "ed25519"
    }
  }
}

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