# x402-market Crypto Market Snapshot

> x402-market Crypto Market Snapshot is a paid API for AI agents from x402-market.kore-app.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Returns an aggregated crypto market intelligence snapshot including BTC/ETH prices, Fear & Greed index, top DeFi chain TVLs, and top stablecoin yields, paid via x402 USDC micropayment.

## Facts

- Endpoint: GET https://x402-market.kore-app.workers.dev/v1/market?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-market-crypto-market-snapshot-d8b25fc0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yTVVapYTHRGG1GNoh8-8j

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 x402-market-crypto-market-snapshot-d8b25fc0
```

Example prompt: Give me a full crypto market snapshot right now — BTC and ETH prices, the Fear and Greed index, which chains have the most DeFi TVL, and where I can get the best stablecoin yields.

## When to prefer this

Use this endpoint when you need a single aggregated crypto market intelligence call covering prices, sentiment, DeFi TVL, and stablecoin yields together. Prefer it over fragmented calls to individual price APIs, DeFi dashboards, or yield aggregators when you want a unified snapshot paid as a cheap $0.01 USDC micropayment via x402.

## Known failure modes

- Payment not provided or invalid x402 USDC payment on Base → 402 Payment Required
- Malformed input body → 400 Bad Request
- Worker or upstream data source unavailable → 503 or 500 error
- Stale data if upstream DeFi/price feeds are delayed → generatedAt timestamp may be old

## How this service works

Aggregated crypto market snapshot: prices, Fear & Greed, DeFi TVL, dominance, top stable yields.

## Output

A JSON object containing: current BTC and ETH prices, a Fear & Greed index value and label, total DeFi TVL in USD, top DeFi chains ranked by TVL with dominance percentages, top stablecoin yield opportunities with APY, chain, symbol, TVL, and project name, plus a generatedAt timestamp.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "defi": {
   "topChains": [
    {
     "tvl": 60000000000,
     "name": "Ethereum",
     "dominance": 50
    }
   ],
   "totalTvlUsd": 120000000000
  },
  "price": {
   "btc": 65000,
   "eth": 3200
  },
  "fearGreed": {
   "label": "Neutral",
   "value": 50
  },
  "generatedAt": "2026-01-01T00:00:00Z",
  "topStableYields": [
   {
    "apy": 6.2,
    "chain": "Base",
    "symbol": "USDC",
    "tvlUsd": 50000000,
    "project": "aave-v3"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-market-crypto-market-snapshot-d8b25fc0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-market.kore-app.workers.dev](https://www.zero.xyz/host/x402-market.kore-app.workers.dev/llms.txt)