# x402-defi-signals Market Snapshot

> x402-defi-signals Market Snapshot is a paid API for AI agents from x402-defi-signals.onrender.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).

Returns a single-call snapshot of BTC, ETH, and SOL spot prices with 24-hour change, plus the Crypto Fear & Greed index.

## Facts

- Endpoint: GET https://x402-defi-signals.onrender.com/market/snapshot
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-defi-signals-market-snapshot-2e3d698f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Q-7h8r_yL2t74U9Z1Hadc

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-defi-signals-market-snapshot-2e3d698f
```

Example prompt: Give me a quick crypto market snapshot — current BTC, ETH, and SOL prices with their 24-hour changes, and whether the market is in fear or greed right now.

## When to prefer this

Use this endpoint when an agent needs a cheap, single-call overview of crypto market context including both price data and sentiment (Fear & Greed). Prefer it over dedicated price feeds when you need BTC, ETH, and SOL together in one round-trip, especially when budget is a constraint at $0.002 USDC per call.

## Known failure modes

- Payment not received or x402 payment header missing — returns 402 Payment Required
- Upstream price feed unavailable — may return stale data or 503 Service Unavailable
- Render cold start latency if service has been idle — first call may time out or be slow
- Network timeout if render.com infrastructure is under load

## How this service works

One-call market snapshot: BTC/ETH/SOL spot prices with 24h change plus the Crypto Fear & Greed index. The cheapest way for an agent to establish market context.

## Output

A JSON object containing spot prices for BTC, ETH, and SOL, their 24-hour percentage changes, and the current Crypto Fear & Greed index value and label (e.g. 'Fear', 'Greed', 'Extreme Greed').

## 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
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-defi-signals-market-snapshot-2e3d698f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-defi-signals.onrender.com](https://www.zero.xyz/host/x402-defi-signals.onrender.com/llms.txt)