Events & Markets

Get series

A recurring question above an event, with its fee schedule.

GET/venues/{venue}/series/{series_id}self-hosted · no auth

Self-hosted. Served by synpath serve on your own machine or host, which must be running. Nothing on this page runs on Synpath's servers.

Kalshi and Polymarket US only. Polymarket has no series tier and answers 501.

Path parameters

Name	Type	Description
`venue`	`string`	Venue id: `kalshi`, `polymarket` or `polymarket_us`.
`series_id`	`string`	The venue's series id, e.g. `KXFEDDECISION`.

Response

The series.

import synpath

venue = synpath.exchange("polymarket")
series = venue.fetch_series("")
print(series.title, series.fee)

200

{
  "id": "KXELONMARS",
  "venue": "kalshi",
  "title": "Elon Mars",
  "category": "Politics",
  "tags": [
    "International"
  ],
  "fee": {
    "venue": "kalshi",
    "scope": "series",
    "scope_id": "KXELONMARS",
    "fee_type": "quadratic",
    "multiplier": 1,
    "maker_rate": null,
    "taker_rate": null,
    "rounding": "up_to_cent",
    "exponent": null,
    "info": {
      "additional_prohibitions": [
        "Persons who are employed by any of the Source Agencies are not permitted to trade on the Contract.",
        "Persons who hold any material, non-public information on the Underlying are not permitted to trade on the Contract."
      ],
      "category": "Politics",
      "contract_terms_url": "https://assets.kalshi.com/contract_terms/VISITAREA.pdf",
      "contract_url": "https://assets.kalshi.com/regulatory/product-certifications/VISITAREA.pdf",
      "exchange_index": 0,
      "fee_multiplier": 1,
      "fee_type": "quadratic",
      "frequency": "custom",
      "last_updated_ts": "2026-09-02T03:29:59.256828Z",
      "product_metadata": {
        "scope": "nosearch"
      },
      "settlement_sources": [
        {
          "name": "The Guardian",
          "url": "https://www.theguardian.com"
        },
        {
          "name": "official representatives or offices of <person>",
          "url": "https://kalshi.com/"
        },
        {
          "name": "Fox News",
          "url": "https://www.foxnews.com/"
        },
        {
          "name": "official social media accounts of <person> or their official representatives",
          "url": "https://kalshi.com/"
        },
        {
          "name": "Semafor",
          "url": "https://www.semafor.com/"
        },
        {
          "name": "The Information",
          "url": "https://www.theinformation.com/"
        },
        {
          "name": "CNBC",
          "url": "https://www.cnbc.com"
        },
        {
          "name": "the Associated Press",
          "url": "https://apnews.com/"
        },
        {
          "name": "The Wall Street Journal",
          "url": "https://www.wsj.com/"
        },
        {
          "name": "CNN",
          "url": "https://www.cnn.com"
        },
        {
          "name": "Politico",
          "url": "https://www.politico.com"
        },
        {
          "name": "MSNBC",
          "url": "https://www.msnbc.com"
        },
        {
          "name": "The Washington Post",
          "url": "https://www.washingtonpost.com/"
        },
        {
          "name": "Reuters",
          "url": "https://www.reuters.com"
        },
        {
          "name": "local news outlets with verifiable mastheads in <area>",
          "url": "https://kalshi.com/"
        },
        {
          "name": "official government sources of <area>",
          "url": "https://kalshi.com/"
        },
        {
          "name": "The New York Times",
          "url": "https://www.nytimes.com"
        }
      ],
      "tags": [
        "International"
      ],
      "ticker": "KXELONMARS",
      "title": "Elon Mars"
    }
  },
  "settlement_sources": [
    {
      "name": "The Guardian",
      "url": "https://www.theguardian.com"
    },
    {
      "name": "official representatives or offices of <person>",
      "url": "https://kalshi.com/"
    },
    {
      "name": "Fox News",
      "url": "https://www.foxnews.com/"
    },
    {
      "name": "official social media accounts of <person> or their official representatives",
      "url": "https://kalshi.com/"
    },
    {
      "name": "Semafor",
      "url": "https://www.semafor.com/"
    },
    {
      "name": "The Information",
      "url": "https://www.theinformation.com/"
    },
    {
      "name": "CNBC",
      "url": "https://www.cnbc.com"
    },
    {
      "name": "the Associated Press",
      "url": "https://apnews.com/"
    },
    {
      "name": "The Wall Street Journal",
      "url": "https://www.wsj.com/"
    },
    {
      "name": "CNN",
      "url": "https://www.cnn.com"
    },
    {
      "name": "Politico",
      "url": "https://www.politico.com"
    },
    {
      "name": "MSNBC",
      "url": "https://www.msnbc.com"
    },
    {
      "name": "The Washington Post",
      "url": "https://www.washingtonpost.com/"
    },
    {
      "name": "Reuters",
      "url": "https://www.reuters.com"
    },
    {
      "name": "local news outlets with verifiable mastheads in <area>",
      "url": "https://kalshi.com/"
    },
    {
      "name": "official government sources of <area>",
      "url": "https://kalshi.com/"
    },
    {
      "name": "The New York Times",
      "url": "https://www.nytimes.com"
    }
  ],
  "info": {
    "...": "the venue's payload"
  }
}

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