# Saylor Innovations Gas Estimate (Polygon)

> Saylor Innovations Gas Estimate (Polygon) is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-03).

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

## Facts

- Endpoint: GET https://saylorinnovations.com/api/evm/polygon/estimate-gas?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-03
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-gas-estimate-polygon-3143753e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rZ6hgjMRZkGEPVykyhSOu

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-estimate-polygon-3143753e
```

Example prompt: Before I send this transaction, can you estimate how much gas it will cost on Polygon to call 0xTargetContract with calldata 0xabcdef1234?

## When to prefer this

Choose this endpoint when you need a gas estimate specifically on the Polygon (MATIC) network before submitting a transaction. Use it for pre-flight checks, cost forecasting, or detecting reverts without spending gas. Prefer it over Ethereum/Base siblings when your target contract is deployed on Polygon. It is a read-only simulation — no transaction is broadcast.

## Known failure modes

- Invalid or non-checksummed 'to' address returns error field with description
- Transaction simulation reverts — reverted: true with null gas and error message explaining revert reason
- Malformed calldata causes simulation failure
- Network congestion or RPC unavailability may return error
- Missing required 'to' query parameter results in bad request

## How this service works

Gas Estimate (polygon) — On-Chain Data

## Output

Returns a JSON object with: chain identifier (e.g. 'polygon'), estimated gas units as a number, current gas price in gwei, estimated fee expressed in native token (MATIC), a boolean indicating whether the simulated transaction would revert, and an error string if estimation failed. Gas and fee fields are null if estimation 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-estimate-polygon-3143753e/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)