# Hyperextend Outcome Market Context

> Hyperextend Outcome Market Context is a paid API for AI agents from api.hyperextend.xyz, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Retrieves per-minute HIP-4 outcome-side market context including mark price, mid price, circulating supply, and volume for a given encoded outcome coin.

## Facts

- Endpoint: GET https://api.hyperextend.xyz/v1/outcome_ctx/%7Bcoin%7D
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hyperextend-outcome-market-context-3c7f3083
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BgoLQ-c7d91hpkzIbllHx

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-outcome-market-context-3c7f3083
```

Example prompt: Pull the last 100 rows of outcome market context for Hyperliquid coin #1000 — I need the mark price, mid price, circulating supply, and daily volumes.

## When to prefer this

Use this endpoint when you need per-minute market context snapshots for a specific HIP-4 outcome-side coin on Hyperliquid, especially mark/mid price, circulating supply, and volume data over a configurable time window. Prefer this over candle or open-interest endpoints when outcome market pricing context is the primary need.

## Known failure modes

- Invalid or malformed coin identifier returns 400 or empty result
- coin parameter not properly encoded as HIP-4 format (e.g. missing # prefix or wrong numeric encoding)
- start or end timestamps outside available data range return empty array
- limit exceeds server maximum causing error or truncation
- Payment not included or invalid x402 payment results in 402 Payment Required

## How this service works

Per-minute Hyperliquid market history: open interest, candles, trades, liquidations, HIP-3, spot and outcome markets. Query any window, pay per request over x402.

## Output

Returns a JSON object with per-minute outcome market snapshot fields: coin identifier, mid price, mark price, minute timestamp, sample timestamp, daily notional volume, daily base volume, previous day price, and circulating supply.

## 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"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "coin": "#1000",
  "mid_px": "0.62",
  "source": "ws",
  "mark_px": "0.62",
  "minute_ts": 1700000000,
  "sample_ts": 1700000005,
  "day_ntl_vlm": "54321.0",
  "prev_day_px": "0.58",
  "day_base_vlm": "87654.0",
  "circulating_supply": "1000000.0"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hyperextend-outcome-market-context-3c7f3083/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)