# VerifyLite Chainlink Price Feed

> VerifyLite Chainlink Price Feed is a paid API for AI agents from verifylite.hydratinghealingtouch.workers.dev, paid per call via x402, $0.0029/call, status unknown (last checked 2026-10-22).

Returns current USD prices from Chainlink Data Feeds on Base mainnet for ETH, BTC, cbBTC, SOL, USDC, DAI, and EUR, with each feed's last update time, age in seconds, and staleness indicator

## Facts

- Endpoint: POST https://verifylite.hydratinghealingtouch.workers.dev/chain/price?utm_source=zero.xyz
- Price: $0.0029/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verifylite-chainlink-price-feed-c55dad60
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZnLHM6U1y_QL1J8z2fIT-

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-chainlink-price-feed-c55dad60 -d '<json body>'
```

Example prompt: What's the current ETH/USD price from Chainlink on Base — and how fresh is the data?

## When to prefer this

Choose this endpoint when you need on-chain, cryptographically sourced price data from Chainlink's oracle network specifically on Base mainnet, rather than centralized exchange APIs. Ideal for DeFi applications, smart contract integrations, or any use case requiring verifiable, decentralized price feeds. Supports a focused set of major assets plus EUR/USD.

## Known failure modes

- Invalid or unsupported pair string returns an error indicating the pair is not available
- Chainlink feed temporarily unavailable may result in a timeout or upstream error
- Stale data is flagged in the response rather than causing a hard failure
- Malformed request body (e.g. wrong JSON structure) returns a 400-level error

## How this service works

Current prices in USD from Chainlink Data Feeds on Base mainnet: ETH, BTC, cbBTC, SOL, USDC, DAI, and EUR. One pair or all at once, each with the feed's last update time, age in seconds, and a stale flag, read straight from the oracle contracts (the same prices DeFi protocols use). Useful for valuing balances, converting USDC amounts, and checking a stablecoin peg. Not charged for an unknown pair or when the feeds can't be read.

## Output

Returns one or all supported pairs (ETH/USD, BTC/USD, CBBTC/USD, SOL/USD, USDC/USD, DAI/USD, EUR/USD), each with the current price in USD, the feed's last update timestamp, how many seconds ago it was updated, and a boolean or flag indicating whether the feed is considered stale.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "pair": {
   "type": "string",
   "description": "Optional pair, e.g. \"ETH/USD\" or \"BTC\". Omit for all: ETH/USD, BTC/USD, CBBTC/USD, SOL/USD, USDC/USD, DAI/USD, EUR/USD."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verifylite-chainlink-price-feed-c55dad60/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)