Task

Revert Reason

2 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

base-simulate x402 REST checked

Simulate a Base mainnet transaction before sending it - will it succeed, estimated gas, and the decoded revert reason if it would fail.

x402.agentindex.world Dev & Code 3 calls / 30d checked 2026-10-24

0.005 USDC per call per call checked

Gas estimate x402 REST usage

Simulate a transaction before signing: runs `eth_estimateGas` for `{ to, from?, data?, value? }` and returns the estimated gas units and estimated fee (current gas price x gas, in wei + ETH). If the node rejects the call...

chain.openverbs.com Dev & Code 3 calls / 30d checked 2026-10-26

0.004 USDC per call per call

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