# Mint Intel: Base Chain eth_call Simulator

> Mint Intel: Base Chain eth_call Simulator is a paid API for AI agents from mintintel.35-171-220-195.sslip.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).

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.

## Facts

- Endpoint: GET https://mintintel.35-171-220-195.sslip.io/v1/base/call?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mint-intel-base-chain-eth-call-simulator-9e8e51e6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uxEc8dKA1gpU0NnsdjKAo

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability mint-intel-base-chain-eth-call-simulator-9e8e51e6
```

Example prompt: 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?

## When to prefer this

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.

## Known failure modes

- 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

## How this service works

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.

## Output

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.

## Request schema (JSON Schema)

```json
{
 "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"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mint-intel-base-chain-eth-call-simulator-9e8e51e6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mintintel.35-171-220-195.sslip.io](https://www.zero.xyz/host/mintintel.35-171-220-195.sslip.io/llms.txt)