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Synapse API — Kaia Network Gas Estimator
x402
Synapse API — Kaia Network Gas Estimator is a paid API for AI agents from synapse-api-brown.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Estimates the gas cost for a transaction on the Kaia blockchain network before it is submitted
Price / call$0.01
Success—
StatusUnknown
How this service works
High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.
Output
Returns an estimated gas amount (in gas units) required to execute the specified transaction on the Kaia network, allowing callers to set appropriate gas limits and estimate fees before broadcasting the transaction.
Example use cases
Pre-flight gas check for Kaia transfer
“I'm about to send 100 KAIA tokens from 0x1234...abcd to 0x5678...efgh on the Kaia network — can you estimate how much gas that transaction will use before I submit it?”
Smart contract call cost estimation
“I want to call a Kaia smart contract at 0xContractAddr with this calldata: 0xa9059cbb000...0064 — estimate the gas it will consume so I can set a safe gas limit.”
DeFi swap gas budgeting on Kaia
“I'm planning a token swap on a Kaia DEX; the from address is 0xMyWallet, to is 0xDexRouter, with encoded swap data. What's the estimated gas for this transaction?”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/kaia/gas/estimateWhen to prefer
Use this endpoint when you need to estimate gas costs specifically on the Kaia blockchain network before submitting a transaction. Prefer this over generic EVM gas estimators when working with Kaia-specific contracts, tokens, or DeFi protocols, as it routes directly to Kaia network RPC nodes. Best used as a pre-submission check to avoid out-of-gas failures or to budget transaction fees accurately.
Side effects
- Invalid or malformed Ethereum-style address in 'to' or 'from' fields returns an error
- Malformed or non-hex 'data' field causes parsing failure
- Reverted simulation (e.g. insufficient balance or invalid contract call) may return an execution error or revert reason
- Network connectivity issues with Kaia RPC nodes may result in timeout or 503 errors
- Missing required fields may return a 400 Bad Request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | |
| data | string | |
| from | string | |
| value | string |
Tags
x402
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