# VerifyLite Gas Price & Execution Cost Oracle

> VerifyLite Gas Price & Execution Cost Oracle is a paid API for AI agents from verifylite.hydratinghealingtouch.workers.dev, paid per call via x402, $0.0015/call, status unknown (last checked 2026-10-22).

Returns current Base mainnet gas metrics (gas price, base fee, priority fee in gwei) and estimated ETH execution costs for an ETH transfer, USDC transfer, and a typical swap, from the latest block.

## Facts

- Endpoint: POST https://verifylite.hydratinghealingtouch.workers.dev/chain/gas?utm_source=zero.xyz
- Price: $0.0015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verifylite-gas-price-execution-cost-oracle-8b01ec84
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ulOS98owc4I8U1zZ3qITX

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 verifylite-gas-price-execution-cost-oracle-8b01ec84 -d '<json body>'
```

Example prompt: What are the current gas fees on Base mainnet right now — including the base fee, priority fee, and how much it would cost in ETH to do an ETH transfer, a USDC transfer, and a token swap?

## When to prefer this

Choose this endpoint when you need a quick, real-time snapshot of Base mainnet gas conditions including estimated transaction costs for the three most common operation types (ETH send, ERC-20 transfer, swap). It is ideal for DeFi agents, cost-estimation workflows, or pre-transaction fee checks on Base L2 without needing to run your own RPC node.

## Known failure modes

- RPC node unavailable: returns an error if Base mainnet RPC is unreachable
- Stale block data: if the latest block is delayed, gas estimates may lag real-time conditions
- Payment failure: x402 USDC payment not confirmed, request rejected
- Malformed request body: returns validation error if body does not match schema

## How this service works

Current Base mainnet gas: gas price, base fee, and priority fee in gwei, plus estimated execution cost in ETH for an ETH transfer, a USDC transfer, and a typical swap, from the latest block. Useful for timing transactions and budgeting fees before sending. No input needed. Not charged when Base can't be reached.

## Output

Returns current Base mainnet gas metrics from the latest block: gas price, base fee, and priority fee in gwei; plus estimated ETH execution costs for three common transaction types — an ETH transfer, a USDC (ERC-20) transfer, and a typical DEX swap.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [],
     "properties": {},
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verifylite-gas-price-execution-cost-oracle-8b01ec84/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from verifylite.hydratinghealingtouch.workers.dev](https://www.zero.xyz/host/verifylite.hydratinghealingtouch.workers.dev/llms.txt)