# HyperExtend HIP-4 Outcome Context

> HyperExtend HIP-4 Outcome Context is a paid API for AI agents from api.hyperextend.xyz, paid per call via x402, $0.001000/call, status unknown (last checked 2026-09-14).

Returns mark price, mid price, circulating supply, and volume metrics for a specific HIP-4 outcome-side coin over a configurable time window.

## Facts

- Endpoint: GET https://api.hyperextend.xyz/v1/outcome_ctx/%231000
- Price: $0.001000/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hyperextend-hip-4-outcome-context-1d4a7c56
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_t09LMsXv_rPvhFJd26FzK

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 hyperextend-hip-4-outcome-context-1d4a7c56
```

Example prompt: What's the current mark price, mid price, circulating supply, and recent volume for HIP-4 outcome coin #1000? Show me the last 50 data points.

## When to prefer this

Use this endpoint when you need outcome-specific market context for a HIP-4 prediction market coin, specifically mark/mid price and circulating supply alongside volume, and you have the encoded outcome-side coin identifier (e.g. #1000). Prefer this over the main market context endpoint when you need outcome-side granularity rather than aggregate open interest or funding rate data.

## Known failure modes

- Invalid or malformed coin identifier (e.g. not in '#<10*outcome+side>' format) returns an error
- Start or end timestamp outside available data range may return empty results
- Limit parameter too large may be capped or rejected
- Payment not included or insufficient USDC balance causes 402 Payment Required
- Coin identifier for a non-existent outcome returns 404 or empty response

## How this service works

HIP-4 outcome-side mark / mid / circulating supply / volumes over a window.

## Output

Returns time-series market context data for the specified HIP-4 outcome-side coin, including mark price, mid price, circulating supply, and volume figures over the requested window.

## 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"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "coin"
     ],
     "properties": {
      "coin": {
       "type": "string",
       "description": "Encoded HIP-4 outcome-side coin '#<10*outcome+side>' (e.g. #1000)"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "end": {
       "type": "integer"
      },
      "limit": {
       "type": "integer"
      },
      "start": {
       "type": "integer"
      }
     }
    }
   },
   "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/hyperextend-hip-4-outcome-context-1d4a7c56/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.hyperextend.xyz](https://www.zero.xyz/host/api.hyperextend.xyz/llms.txt)