# ISHOB Gas Tracker

> ISHOB Gas Tracker is a paid API for AI agents from api.ishob.com, paid per call via x402, $0.0001/call, status unknown (last checked 2026-10-14).

Returns real-time gas fees, transaction cost estimates, and network health metrics for Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, and Solana.

## Facts

- Endpoint: GET https://api.ishob.com/v1/crypto/gas-tracker?utm_source=zero.xyz
- Price: $0.0001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ishob-gas-tracker-59edb137
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xgj_1zvms0s4y7QXp5hJn

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 ishob-gas-tracker-59edb137
```

Example prompt: What are the current gas fees on Ethereum and Base — give me slow, standard, and fast tiers with USD cost estimates for a swap and a simple transfer.

## When to prefer this

Use this endpoint when an AI agent needs real-time, multi-chain gas fee data across major EVM chains and Solana in a single call, with pre-computed USD cost estimates for common transaction types (transfer, ERC-20 transfer, swap). Prefer it over chain-specific RPC calls when you need congestion signals, base-fee trend, and fee tiers (slow/standard/fast) without doing your own block analysis. Ideal for DeFi agents that need to decide which chain to route transactions through or when to execute a transaction based on current network conditions.

## Known failure modes

- Invalid chain name in 'chains' parameter returns error or is silently ignored
- Upstream RPC node outage may cause stale or missing data for specific chains
- USD cost estimates unavailable if 'usd=false' is set or price feed is temporarily down
- Rate limiting if too many requests are made in a short window
- Network-specific data (e.g. Solana TPS) may be missing if that chain's node is unreachable

## How this service works

36 MCP tools & x402 pay-per-call APIs for AI agents: crypto risk, web extraction, screenshots, agent alarms, weather, company data. No API key.

## Output

A JSON array of chain objects, each containing slow/standard/fast EIP-1559 fee tiers (base fee + priority tip in gwei, max fee in gwei), estimated costs for transfer/ERC-20 transfer/swap in both native token and USD, current congestion level, base-fee trend, block time, and latest-block age. For Solana, returns priority-fee percentiles and current TPS instead of EIP-1559 fields.

## 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": {
      "usd": {
       "type": "boolean",
       "default": true,
       "description": "Include USD cost estimates"
      },
      "chains": {
       "type": "string",
       "description": "Comma-separated subset of: ethereum, base, arbitrum, optimism, polygon, bsc, solana (default: all)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "chains": [
   {
    "chain": "base",
    "tiers": {
     "standard": {
      "cost": {
       "swap": {
        "usd": 0.0027,
        "native": 0.00000108
       }
      },
      "max_fee_gwei": 0.011,
      "max_priority_fee_gwei": 0.001
     }
    },
    "trend": "stable",
    "congestion": "normal",
    "base_fee_next_gwei": 0.005
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ishob-gas-tracker-59edb137/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.ishob.com](https://www.zero.xyz/host/api.ishob.com/llms.txt)