# Mint Intel: Ethereum ETH/USD Price Feed

> Mint Intel: Ethereum ETH/USD Price Feed is a paid API for AI agents from mintintel.35-171-220-195.sslip.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).

Returns a median ETH/USD price derived from on-chain Ethereum sources — Chainlink latestRoundData and Uniswap v3 WETH/USDC spot — in a single RPC batch, with per-source breakdown, feed age, round info, and spread in basis points.

## Facts

- Endpoint: GET https://mintintel.35-171-220-195.sslip.io/v1/eth/eth-usd?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mint-intel-ethereum-eth-usd-price-feed-a36eb2d1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_41QgCmzXmxa8myE789VH7

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 mint-intel-ethereum-eth-usd-price-feed-a36eb2d1
```

Example prompt: What's the current ETH/USD price from on-chain Ethereum sources right now — give me the Chainlink and Uniswap v3 prices, the median, and how wide the spread is?

## When to prefer this

Prefer this endpoint when you need ETH/USD price data sourced entirely from Ethereum on-chain state with no reliance on centralized exchanges or third-party price APIs, and when you want both Chainlink oracle data and Uniswap v3 DEX spot price in a single call with a pre-computed median and spread. Ideal for DeFi agents, smart contract parameter setting, arbitrage monitoring, or any workflow requiring trustless, verifiable price data on Ethereum mainnet.

## Known failure modes

- Ethereum RPC node unavailable or rate-limited — returns a 5xx error
- Chainlink feed data is stale beyond acceptable threshold — may surface in feed age field
- Uniswap v3 pool liquidity too thin to return a reliable spot — possible outlier price
- Network congestion causing RPC batch timeout
- Payment not processed (x402) — request rejected before execution

## How this service works

ETH/USD read straight from Ethereum state, no CEX or API key: the Chainlink ETH/USD feed (latestRoundData) plus the Uniswap v3 WETH/USDC 0.05% pool spot price in one RPC batch. Median of fresh sources, per-source price, feed age and round, spread in bps.

## Output

A JSON object containing: the trading pair label (ETH/USD), a single median price number, and an array of per-source entries each with their price, source name (Chainlink or Uniswap v3), feed age in seconds, round ID (for Chainlink), and spread between sources expressed in basis points.

## 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": {},
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "pair",
      "price",
      "sources"
     ],
     "properties": {
      "pair": {
       "type": "string"
      },
      "price": {
       "type": "number"
      },
      "sources": {
       "type": "array"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mint-intel-ethereum-eth-usd-price-feed-a36eb2d1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mintintel.35-171-220-195.sslip.io](https://www.zero.xyz/host/mintintel.35-171-220-195.sslip.io/llms.txt)