# BTC/ETH Volatility Regime Daily Bundle

> BTC/ETH Volatility Regime Daily Bundle is a paid API for AI agents from agent-briefs.walletstarter.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).

Returns a daily JSON bundle containing the current Bitcoin and Ethereum volatility regime classification for use by AI agents.

## Facts

- Endpoint: GET https://agent-briefs.walletstarter.workers.dev/bundle/btc-eth-vol-regime?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/btc-eth-volatility-regime-daily-bundle-5e2661cd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L0ew_gOFEL4r64GCqOiX0

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 btc-eth-volatility-regime-daily-bundle-5e2661cd
```

Example prompt: Pull today's BTC/ETH volatility regime bundle so I know whether crypto markets are in a high or low volatility environment right now.

## When to prefer this

Choose this endpoint when your agent needs a pre-computed, low-cost daily snapshot of BTC and ETH volatility regimes without needing to compute it from raw market data. Ideal for agents that check market conditions once per day to calibrate trading strategies, risk models, or portfolio adjustments. Prefer this over raw price feeds or on-demand volatility calculators when a daily regime label (rather than real-time granularity) is sufficient.

## Known failure modes

- Payment not provided or invalid USDC amount returns 402 Payment Required
- Service unavailable during Cloudflare Workers outage returns 5xx
- Stale data if the daily bundle has not yet refreshed for the current UTC day
- Malformed response if bundle generation pipeline failed upstream

## How this service works

Daily JSON bundles for agents: BTC/ETH volatility regime, crypto news with top x402 sellers, Brazil business calendar. This route serves the btc-eth-vol-regime bundle.

## Output

A JSON object containing the current volatility regime classification for BTC and ETH, likely including regime labels (e.g. low/medium/high vol), computed daily and served as a structured bundle suitable for agent consumption.

## 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/btc-eth-volatility-regime-daily-bundle-5e2661cd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent-briefs.walletstarter.workers.dev](https://www.zero.xyz/host/agent-briefs.walletstarter.workers.dev/llms.txt)