# AgentRXI Gas Prices

> AgentRXI Gas Prices is a paid API for AI agents from agentrxi.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-15).

Returns live gas prices (slow/normal/fast tips, next base fee, USD transfer cost) for Ethereum, Base, Arbitrum, Optimism, and Polygon.

## Facts

- Endpoint: GET https://agentrxi.com/v1/gas?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentrxi-gas-prices-f0c7f2f1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1rODxo-YCSdWmqDcWSmVP

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 agentrxi-gas-prices-f0c7f2f1
```

Example prompt: What are the current gas prices on Ethereum and Arbitrum — give me the slow, normal, and fast priority tips and the USD cost of a simple transfer?

## When to prefer this

Use this endpoint when an agent needs real-time, multi-chain gas fee data across the five major EVM networks (Ethereum, Base, Arbitrum, Optimism, Polygon) in a single call, including USD-denominated cost estimates. Prefer it over on-chain RPC calls when you need normalized, human-readable fee tiers without parsing raw gwei values yourself.

## Known failure modes

- Invalid chain name in comma-separated list returns an error or omits the chain
- Network congestion or upstream RPC outage may result in stale or missing data
- Malformed query parameter format returns a validation error
- Unsupported chain name silently ignored or returns empty result

## How this service works

Live gas prices on Ethereum, Base, Arbitrum, Optimism and Polygon: gas price, next base fee, slow/normal/fast priority tips, and USD cost of a simple transfer.

## Output

A JSON object per requested chain containing the current gas price, predicted next base fee, slow/normal/fast priority fee tips in gwei, and the estimated USD cost of a simple ETH transfer at each speed tier.

## 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",
     "properties": {
      "chains": {
       "type": "string",
       "description": "Comma list; default all five"
      }
     }
    }
   },
   "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/agentrxi-gas-prices-f0c7f2f1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentrxi.com](https://www.zero.xyz/host/agentrxi.com/llms.txt)