Dirt Road · EVM Smart Contract Call Simulation
Simulate smart contract calls to read state and test interactions without gas.
What it does
Simulate smart contract calls to read state and test interactions without gas.
- Query contract state without submitting transactions
- Test contract function calls before mainnet execution
- Read view and pure function results for analysis
Ideal buyer
Smart contract developers and auditors testing EVM interactions.
Run this through your governed agent wallet.
- 01Bootstrap AXON once with
npx @axon402/init. - 02Use the AXON runtime MCP tools to
search_x402_servicesorinspect_x402_offerfor this service. - 03Quote, test-buy, then run the governed paid fetch through AXON.
Send this
Prompt for your agent
A natural-language instruction for your LLM agent — with this endpoint exposed as a tool — to call this resource. Not sent to the endpoint; the endpoint consumes the JSON body below.
Pasting this prompt into a raw ChatGPT or unconfigured agent will notexecute the paid endpoint flow. Run it through an agent with the AXON runtime / MCP tools exposed (see “Use with AXON” above) so the 402 challenge, quote, and governed fetch are handled for you.
“Simulate a call to read the balance of this contract”
Endpoint request body
The JSON payload your agent sends to the endpoint.
{
"chain": "eip155:8453",
"blockTag": "latest",
"transaction": {
"to": "0x...",
"data": "0x..."
}
}Advanced HTTP details
For integrators who need the raw protocol surface. Most agents should use AXON above instead of calling these directly.
Endpoint URL
curl fallback
curl https://api.dirtroad.dev/tools/web3/evm/eth-call \ -H "Content-Type: application/json" \ -H "X-PAYMENT: [signed_payment_envelope]" \ -d '{"chain":"eip155:8453","blockTag":"latest","transaction":{"to":"0x...","data":"0x..."}}'
Payment & settlement details
Raw on-chain settlement parameters. AXON above handles these automatically through quote / test-buy / governed fetch.
Price & network
Trust & risk
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Category proxy — we don't track live co-purchase signals yet.