> **For coding agents and LLMs:** This is one Social Fetch marketing page (markdown export). For API orientation start with [`/llms.txt`](https://www.socialfetch.dev/llms.txt); for auth and crawl rules use [`/agents.txt`](https://www.socialfetch.dev/agents.txt); for every operation use [`/llms-endpoints.txt`](https://www.socialfetch.dev/llms-endpoints.txt).

## This page

- **On-site (HTML):** <https://www.socialfetch.dev/platforms/polymarket/sports>
- **Markdown (.mdx) URL:** <https://www.socialfetch.dev/platforms/polymarket/sports.mdx>

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# Polymarket Sports API

The leagues Polymarket covers, with the tags and series that mark their events.

`GET /v1/polymarket/sports` returns `data.sports`. Each row has `id`, `code` (for example `nfl`), `name`, `image`, `resolutionSource`, `tagIds`, `primaryTagId`, `seriesId` and `createdAt`. Use the code to filter teams, or the tag or series ids to find the league's events and markets.

Pass `sport` with a league code to narrow the list. A league with no markets still appears in the list, because the catalog describes coverage rather than live inventory.

## Request

- **Endpoint:** `GET /v1/polymarket/sports`
- **Credits:** 1 credit
Failed requests are free
- **Input:** by sport
- **Full reference:** [docs](https://www.socialfetch.dev/docs/api/v1/polymarket/sports/get)
- **Platform page:** [/platforms/polymarket](https://www.socialfetch.dev/platforms/polymarket)

## FAQ

### How do I find the markets for a league?

Use primaryTagId with GET /v1/polymarket/markets?tagId={id}, or seriesId with the events list's seriesId filter. The tagIds array holds every tag that marks the league's events.

### What is resolutionSource?

The place the league's results are taken from, as published by Polymarket. It is a description, not a URL you can fetch.

### Does a sport with no open events disappear?

No. The list describes the leagues Polymarket covers. An empty market list for a league means there is no open inventory right now, not that the league is gone.

### What does lookupStatus mean on this route?

found means the object or list was returned. not_found means no matching object exists. HTTP 200 only means the request finished, so branch on data.lookupStatus before storing a row.

### How much does this route cost?

Pricing is documented on the operation in the API registry (shown on this page). Confirm on every response with meta.creditsCharged: that field is the billing source of truth.