{"uid":"cap_uxEc8dKA1gpU0NnsdjKAo","slug":"mint-intel-base-chain-eth-call-simulator-9e8e51e6","name":"Mint Intel: Base Chain eth_call Simulator","description":"Simulate a read-only Base contract call via eth_call - nothing is sent (?to=&data=, optional from, value, block): raw return data, first words, uint / address / string decodings, or the revert reason.","url":"https://mintintel.35-171-220-195.sslip.io/v1/base/call?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["to","data"],"properties":{"to":{"type":"string","description":"contract address (0x + 40 hex)"},"data":{"type":"string","description":"0x calldata, e.g. 0x18160ddd = totalSupply()"},"from":{"type":"string","description":"optional caller address"},"block":{"type":"string","description":"latest (default), finalized, safe or a block number"},"value":{"type":"string","description":"optional wei"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["reverted"],"properties":{"result":{"type":"string"},"reverted":{"type":"boolean"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_FClpVxqf7yUimtQFYbUjP","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Simulates a read-only Base (EVM) smart contract call via eth_call and returns the raw output, decoded values (uint, address, string), or revert reason.","exampleAgentPrompt":"Can you simulate a read-only call to the Base contract at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 using calldata 0x18160ddd to get the totalSupply, and decode the result as a uint?","exampleUseCases":[{"title":"Check ERC-20 total supply on Base","prompt":"Call the Base ERC-20 contract at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 with calldata 0x18160ddd (totalSupply) and tell me the decoded uint value."},{"title":"Debug a reverting Base contract call","prompt":"I'm trying to call function 0xa9059cbb on Base contract 0x4200000000000000000000000000000000000006 with some calldata — can you simulate the call and tell me the revert reason if it fails?"},{"title":"Read a DeFi pool price at a past block","prompt":"Simulate a call to the Base Uniswap V3 pool at 0x1234abcd... using slot0 calldata 0x3850c7bd, but at block number 15000000, and decode the output."}],"resultDescription":"Returns whether the call reverted (boolean), the raw hex return data, decoded interpretations as uint/address/string for the first return words, and the revert reason string if the call failed.","failureModes":["Invalid contract address format returns an error","Malformed calldata (not 0x-prefixed hex) causes a parse error","Contract does not exist at the given address — call may succeed with empty data or revert","Specifying an out-of-range block number may return an error","If the simulated call reverts, reverted=true is returned with the reason string rather than decoded output","Network or RPC timeout for Base node may cause a 5xx response"],"whenToPreferThis":"Choose this endpoint when you need to inspect or decode Base chain (EVM) smart contract state without submitting a real transaction — especially useful for reading view/pure functions, checking return values, or diagnosing revert reasons at no gas cost. Prefer over generic RPC providers when you want automatic decoding of uint, address, and string types from the raw return data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:40:15.522Z","isFirstParty":false,"canonicalSlug":"mint-intel-base-chain-eth-call-simulator-9e8e51e6"}