# x402-factory MLB Baseball Calendar

> x402-factory MLB Baseball Calendar is a paid API for AI agents from x402-factory.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns upcoming MLB baseball event resolutions ordered by date with current blended win probabilities, covering up to 90 days ahead.

## Facts

- Endpoint: GET https://x402-factory.com/v1/calendar/sports-mlb
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-factory-mlb-baseball-calendar-f95d4edc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_D47v9eRYrb0RVQqQDUbqD

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 x402-factory-mlb-baseball-calendar-f95d4edc
```

Example prompt: Pull the upcoming MLB baseball prediction market calendar for the next 30 days so I can see which events are resolving soon and what their current probabilities are.

## When to prefer this

Use this endpoint when you specifically need MLB baseball market data pre-filtered from the broader sports calendar — it avoids having to filter a generic sports feed yourself. Prefer it over the general /v1/calendar endpoint when your agent's scope is MLB-only, saving bandwidth and parsing overhead.

## Known failure modes

- Invalid days parameter (outside 1–90 range) returns validation error
- No upcoming MLB events in the requested window returns empty events array
- Payment not completed returns 402 Payment Required
- Server-side data lag may result in stale probabilities for recently resolved markets

## How this service works

Upcoming MLB baseball event resolutions — Upcoming MLB baseball market resolutions in date order with current blended probabilities — the forward calendar of MLB baseball events an agent can position around. Same shape as /v1/calendar, pre-filtered to MLB baseball markets.

## Output

A JSON array of upcoming MLB baseball events in chronological order, each containing a slug identifier, the market question, the resolution date, the current blended probability (0–1), and the category label. Wrapped in a data/meta envelope.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "days": {
       "type": "integer",
       "default": 14,
       "maximum": 90,
       "minimum": 1
      },
      "category": {
       "enum": [
        "politics",
        "economics",
        "weather",
        "crypto",
        "sports",
        "science-tech",
        "entertainment"
       ],
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "data",
      "meta"
     ],
     "properties": {
      "data": {
       "type": "object",
       "required": [
        "events"
       ],
       "properties": {
        "events": {
         "type": "array",
         "items": {
          "type": "object",
          "required": [
           "slug",
           "question",
           "resolution_date",
           "current_p",
           "category"
          ],
          "properties": {
           "slug": {
            "type": "string"
           },
           "category": {
            "type": "string"
           },
           "question": {
            "type": "string"
           },
           "current_p": {
            "type": "number",
            "maximum": 1,
            "minimum": 0
           },
           "resolution_date": {
            "type": "string"
           }
          },
          "additionalProperties": false
         }
        }
       },
       "additionalProperties": false
      },
      "meta": {
       "type": "object"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "events": []
  },
  "meta": {
   "docs": "https://x402-factory.com/docs/probability.calendar.sports-mlb",
   "sources": [
    "kalshi",
    "polymarket"
   ],
   "version": "1.0.0",
   "endpoint": "/v1/calendar/sports-mlb",
   "data_mode": "live",
   "freshness": "hourly",
   "request_id": "req_00000000",
   "generated_at": "2026-08-21T03:58:58.083Z"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-factory-mlb-baseball-calendar-f95d4edc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-factory.com](https://www.zero.xyz/host/x402-factory.com/llms.txt)