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Synapse API — Injective Gas Estimator
x402
Synapse API — Injective 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 Injective blockchain network before submission
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 a gas estimate (numerical value) representing the predicted gas units required to execute the specified transaction on the Injective blockchain, enabling the caller to calculate the total fee before broadcasting the transaction.
Example use cases
Pre-flight DeFi swap cost check
“Before I submit this Injective DEX swap, estimate the gas cost — the transaction is from inj1sender...abc to inj1contract...def with data 0x7ff36ab5 and value 500000000000000000.”
Smart contract interaction cost estimate
“I want to call a smart contract on the Injective network — can you estimate the gas fees first? Sender is inj1user...111, contract address is inj1contract...222, data is 0xa9059cbb, and I'm sending zero value.”
Token transfer fee estimation
“How much gas will it cost to transfer INJ tokens from inj1wallet...aaa to inj1recipient...bbb with value 2000000000000000000 and no data payload?”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/injective/gas/estimateWhen to prefer
Use this endpoint when you need to estimate gas costs specifically on the Injective blockchain network before submitting a transaction, particularly for DeFi operations, token transfers, or smart contract interactions on Injective. Prefer this over general Ethereum gas estimators since it targets the Injective network specifically.
Side effects
- Invalid or malformed wallet addresses return a validation error
- Unsupported transaction data format may cause estimation failure
- Network connectivity issues to the Injective RPC may return a timeout or service unavailable error
- Missing required fields may return a 400 bad request
- Extremely complex contract calls may exceed estimation limits
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | |
| data | string | |
| from | string | |
| value | string |
Tags
x402
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