# AlphaPipeline HIP-4 Price Ladder

> AlphaPipeline HIP-4 Price Ladder is a paid API for AI agents from alphapipeline-eu.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Returns a sorted price ladder of Hyperliquid HIP-4 'above $X' binary prediction market outcomes for a given crypto asset, with live Yes probabilities at each strike price.

## Facts

- Endpoint: GET https://alphapipeline-eu.onrender.com/v1/prediction/hip4-price-ladder?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/alphapipeline-hip-4-price-ladder-d004faeb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_f-i7vuU_VEbcVD8Gadd8h

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 alphapipeline-hip-4-price-ladder-d004faeb
```

Example prompt: Show me the HIP-4 price ladder for BTC on Hyperliquid — give me the top 50 strike levels sorted by price with the live Yes probability at each rung.

## When to prefer this

Use this endpoint when you need a complete, strike-sorted view of Hyperliquid HIP-4 binary prediction market outcomes for a specific crypto asset, with live implied probabilities. It is ideal for pre-trade analysis, probability surface scanning, or identifying mispriced rungs across multiple strike levels. Prefer this over the HIP-4 Snapshot when you need the full sorted ladder view rather than a top-level snapshot, and when you want to avoid redundant upstream calls since it reuses cached snapshot data.

## Known failure modes

- Missing required 'underlying' parameter returns a 422 validation error
- Unknown or unsupported asset symbol returns empty rungs array or error
- limit exceeding 500 is capped or rejected
- Upstream Hyperliquid data unavailable causes stale or error response
- No HIP-4 markets exist for the requested asset, returning zero rungs

## How this service works

Price ladder for Hyperliquid HIP-4 'above $X' price-binary markets: same-underlying outcomes sorted by strike, each with its live Yes probability. Reuses hip4-snapshot's cached data - no new upstream call. No volume field (Hyperliquid doesn't expose one for HIP-4). Required `underlying` (e.g. BTC, ETH, SOL, HYPE); optional `limit` (max 500). Paid in USDC on Base.

## Output

Returns a sorted array of price ladder rungs for the requested asset, each containing: outcome_id, strike price, yes_price (0.0–1.0 implied probability), expiry, and period. Also includes metadata: underlying symbol, rung_count, skipped_unparsable_count, data_source label, and a generated_at timestamp in both UTC and KST. An optional notice field may appear for data quality warnings.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "underlying"
     ],
     "properties": {
      "limit": {
       "type": "integer",
       "description": "Max rungs returned. Defaults to 100, max 500."
      },
      "underlying": {
       "type": "string",
       "description": "Asset symbol for crypto price-binary markets (e.g. 'BTC', 'ETH', 'SOL', 'HYPE')."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "PredictionHip4PriceLadderResponse",
     "required": [
      "generated_at",
      "underlying",
      "rung_count",
      "skipped_unparsable_count",
      "rungs",
      "data_source"
     ],
     "properties": {
      "rungs": {
       "type": "array",
       "items": {
        "type": "object",
        "title": "Hip4LadderRung",
        "required": [
         "outcome_id",
         "strike"
        ],
        "properties": {
         "expiry": {
          "anyOf": [
           {
            "type": "string"
           },
           {
            "type": "null"
           }
          ],
          "title": "Expiry",
          "default": null
         },
         "period": {
          "anyOf": [
           {
            "type": "string"
           },
           {
            "type": "null"
           }
          ],
          "title": "Period",
          "default": null
         },
         "strike": {
          "type": "number",
          "title": "Strike",
          "description": "The outcome's own targetPrice field, parsed as a number."
         },
         "yes_price": {
          "anyOf": [
           {
            "type": "number"
           },
           {
            "type": "null"
           }
          ],
          "title": "Yes Price",
          "default": null,
          "description": "Live mid-price for the 'Yes' side (0.0-1.0, an implied probability)."
         },
         "outcome_id": {
          "type": "integer",
    
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/alphapipeline-hip-4-price-ladder-d004faeb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from alphapipeline-eu.onrender.com](https://www.zero.xyz/host/alphapipeline-eu.onrender.com/llms.txt)