# Saylor Innovations Gas Estimator (Base Network)

> Saylor Innovations Gas Estimator (Base Network) is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-30).

Estimates gas cost for a transaction on the Base EVM network, returning gas units, gas price in gwei, and estimated fee in native currency.

## Facts

- Endpoint: GET https://saylorinnovations.com/api/evm/base/estimate-gas?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-gas-estimator-base-network-329d3267
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Y8DxfS33nzy1g1Pj8kQWA

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 saylor-innovations-gas-estimator-base-network-329d3267
```

Example prompt: Can you estimate the gas cost for a transaction on Base to the contract at 0xAbCd1234...5678, using calldata 0xa9059cbb...?

## When to prefer this

Use this endpoint when you need a quick gas estimate specifically on the Base network before submitting a transaction. Prefer it over generic RPC calls when you want a structured, pay-per-call API that returns gas units, gwei price, and native fee together in one response. Best suited for agents that need to validate transaction affordability or detect reverts prior to execution on Base.

## Known failure modes

- Invalid or malformed 'to' address returns an error message with null gas fields
- Transaction simulation reverts — reverted field is true and error describes the revert reason
- Network congestion or RPC unavailability may cause delays or errors
- Missing required 'to' parameter results in a bad request response
- Calldata that triggers out-of-gas conditions may return null gas estimate

## How this service works

Gas Estimate (base). Base gas estimate for a transaction (?to=, ?from=, ?data=, ?value=) with current gas price and estimated fee in the native coin; reverts reported cleanly.

## Output

Returns a JSON object with: the chain identifier ('base'), estimated gas units required, current gas price in gwei, estimated fee in native ETH, a boolean indicating if the transaction would revert, and an error message if applicable. Gas and fee fields may be null if the call fails.

## 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",
      "POST",
      "PUT",
      "PATCH",
      "DELETE",
      "HEAD"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "to": {
       "type": "string",
       "description": "0x target (query)"
      },
      "data": {
       "type": "string",
       "description": "optional 0x calldata (query)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "chain",
      "reverted"
     ],
     "properties": {
      "gas": {
       "type": [
        "number",
        "null"
       ]
      },
      "chain": {
       "type": "string"
      },
      "error": {
       "type": [
        "string",
        "null"
       ]
      },
      "native": {
       "type": "string"
      },
      "reverted": {
       "type": "boolean"
      },
      "est_fee_native": {
       "type": [
        "string",
        "null"
       ]
      },
      "gas_price_gwei": {
       "type": [
        "number",
        "null"
       ]
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-gas-estimator-base-network-329d3267/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)