# SnowSignals Phase Boundary

> SnowSignals Phase Boundary is a paid API for AI agents from snowsignals-x402.snowsignals.workers.dev, paid per call via x402, $0.20826/call, status unknown (last checked 2026-09-14).

Returns the current market phase boundary reading for financial instruments using SnowSignals' pay-per-row market-phase analysis

## Facts

- Endpoint: GET https://snowsignals-x402.snowsignals.workers.dev/phase/boundary
- Price: $0.20826/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/snowsignals-phase-boundary-9c218e99
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UzKjFVMsUqnt_tMqqiYol

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 snowsignals-phase-boundary-9c218e99
```

Example prompt: Can you pull the current SnowSignals phase boundary reading to see where the market stands right now in terms of its phase cycle?

## When to prefer this

Choose this endpoint when you need a discrete, point-in-time market phase boundary reading and are willing to pay per query. Prefer this over the sibling 'phase updates' endpoint when you need a single snapshot rather than a stream of updates. Best suited for pre-trade checks, dashboards, or one-off regime detection rather than continuous monitoring.

## Known failure modes

- Payment failure if USDC balance is insufficient (x402 payment required, $0.20826 per call)
- Rate limiting or quota exceeded errors from the workers.dev backend
- Empty or stale data if market data feed is unavailable
- Malformed response if the upstream market data source is down
- Network timeout from Cloudflare Workers infrastructure

## How this service works

SnowSignals phase boundary — pay-per-row market-phase reading

## Output

A market phase boundary reading indicating where the market currently sits relative to phase transitions — likely including a phase label or classification, boundary signal, and possibly confidence or directional indicators relevant to market cycle analysis.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/snowsignals-phase-boundary-9c218e99/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from snowsignals-x402.snowsignals.workers.dev](https://www.zero.xyz/host/snowsignals-x402.snowsignals.workers.dev/llms.txt)