# polynews.news Market Info

> polynews.news Market Info is a paid API for AI agents from polynews.news, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Returns market structure metadata for a prediction market, including market type detection and available outcomes with their current probabilities

## Facts

- Endpoint: POST https://polynews.news/api/v1/market-info
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polynews-news-fef214b0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ajJWvKF77GFU3bK5u1H6H

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 polynews-news-fef214b0 -d '<json body>'
```

Example prompt: What type of market is the Polymarket 'Will Trump win the 2024 election?' market, and what are all the available outcomes with their current probabilities?

## When to prefer this

Use this endpoint when you need to understand the structure of a specific prediction market before trading, analyzing, or comparing it — especially when you need to know which outcome types are available and their current odds. Prefer this over broader market-context or smart-money endpoints when you only need structural metadata without news or wallet analysis.

## Known failure modes

- Market identifier not found or invalid — returns 404 or empty result
- Market has been resolved or delisted — may return stale or unavailable data
- Ambiguous market slug matches multiple markets — may require more specific identifier
- Rate limiting or payment failure — returns 402 or 429 error
- Network timeout for real-time probability fetch

## How this service works

Market structure metadata: type detection, available outcomes with probabilities

## Output

Returns structured metadata about the specified prediction market, including the detected market type (e.g. binary, categorical, scalar), a list of all available outcomes, and the current probability assigned to each outcome.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "data": {
       "type": "object",
       "properties": {
        "eventTitle": {
         "type": "string"
        },
        "marketType": {
         "type": "string",
         "description": "binary | candidate-based | date-based"
        },
        "availableOutcomes": {
         "type": "array",
         "items": {
          "type": "object",
          "properties": {
           "name": {
            "type": "string"
           },
           "group": {
            "type": "string",
            "description": "Sub-grouping for date-based markets (e.g. 'near-term')"
           },
           "endDate": {
            "type": "number",
            "description": "Unix ms (date-based markets)"
           },
           "conditionId": {
            "type": "string"
           },
           "probability": {
            "type": "number",
            "description": "0-1"
           }
          }
         }
        }
       }
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object",
   "properties": {
    "outcomes": {
     "type": "array",
     "items": {
      "type": "object",
      "properties": {
       "name": {
        "type": "string"
       },
       "probability": {
        "type": "number"
       }
      }
     }
    },
    "marketType": {
     "type": "string"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polynews-news-fef214b0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from polynews.news](https://www.zero.xyz/host/polynews.news/llms.txt)