# SperaxOS Gas Tracker API

> SperaxOS Gas Tracker API is a paid API for AI agents from chat.sperax.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-03).

Returns real-time gas price estimates and network fee intelligence for blockchain transactions, payable via x402 micropayment.

## Facts

- Endpoint: GET https://chat.sperax.io/api/x402/intel/gas-tracker?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-03
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/speraxos-gas-tracker-api-63ebaf1f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QPX7dpphY_6hAyy2tAum5

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 speraxos-gas-tracker-api-63ebaf1f
```

Example prompt: What are the current gas fees on Base right now — is it cheap enough to submit a DeFi swap, and what's the recommended priority fee for a fast confirmation?

## When to prefer this

Choose this endpoint when you need real-time, AI-contextualized gas fee intelligence payable per-request without API key setup, especially in DeFi agent workflows on Base where cost optimization matters and you want to avoid overpaying for transactions.

## Known failure modes

- Payment not included or insufficient USDC causes 402 Payment Required response
- Upstream gas oracle unavailable returns 503 or empty data
- Malformed request headers result in 400 Bad Request
- Network-specific data unavailable if querying unsupported chain
- Stale data if gas oracle feed is delayed

## How this service works

AI-powered DeFi intelligence APIs payable via the x402 HTTP payment protocol. No API key required — pay per request with USDC on Base. Identity-only (SIWX) endpoints are free for wallets with an agentcash identity.

## Output

Returns current gas price tiers (slow, standard, fast) including base fee and priority fee estimates in gwei, along with network congestion indicators, enabling agents to make cost-aware decisions about when and how to submit blockchain transactions.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/speraxos-gas-tracker-api-63ebaf1f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chat.sperax.io](https://www.zero.xyz/host/chat.sperax.io/llms.txt)