> ## Documentation Index
> Fetch the complete documentation index at: https://docs.0xinsider.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Platforms

> Which prediction markets 0xinsider covers, and which features are available per platform.

0xinsider covers two prediction-market platforms: **Polymarket** and **Kalshi**. They are not at parity. Polymarket is fully covered. Kalshi coverage is partial, because some of the on-chain signals 0xinsider computes do not exist for Kalshi's centralized markets.

Plan around the real coverage. A copy-trading or whale-tracking integration that assumes Kalshi grades or Kalshi whale data will come back empty.

## The platform enum

Anywhere a `platform` field or filter appears, the values are lowercase:

* `polymarket`
* `kalshi`

Endpoints that accept a `platform` filter (whale-trades history, smart-money flows, explore) also accept `all`.

## Capability matrix

This mirrors the live [`GET /api/v1/platforms`](/api-reference/endpoint/get-platforms) response, which is the source of truth. Query it at runtime rather than hard-coding coverage.

| Capability              | Polymarket | Kalshi      |
| ----------------------- | ---------- | ----------- |
| Trader grade            | Supported  | Unsupported |
| P\&L                    | Supported  | Partial     |
| Strategy classification | Supported  | Unsupported |
| Position timeline       | Supported  | Partial     |
| Whale signal            | Supported  | Unsupported |
| Insider radar           | Supported  | Unsupported |
| Market snapshot         | Supported  | Partial     |

`supported` means the feature is fully populated. `partial` means some fields are present but not all (Kalshi market snapshots carry last price but no order-book top-of-book, for example). `unsupported` means the feature does not apply to that platform and returns no data.

## Polymarket-only features

Two surfaces are Polymarket-only today, independent of any `platform` filter you pass:

* **Whale trades** ([`/whale-trades`](/api-reference/endpoint/get-whale-trades), [`/whale-trades/history`](/api-reference/endpoint/get-whale-trades-history)). The whale-trade feed is built from Polymarket fills only. A `platform=kalshi` filter returns nothing.
* **Large positions** ([`/large-positions`](/api-reference/endpoint/list-large-positions)). The large-position scanner runs against Polymarket markets only.

Trader grades, strategy classification, and insider radar are also Polymarket-only, as the matrix shows.

## What works on both

These read paths return both Polymarket and Kalshi data:

* Trader profiles and P\&L ([`/trader/{address}`](/api-reference/endpoint/get-trader), [`/trader/{address}/pnl`](/api-reference/endpoint/get-trader-pnl)), with the per-platform caveats above.
* Positions board ([`/positions`](/api-reference/endpoint/get-positions)).
* Market intel and smart-money flows ([`/market/{condition_id}/intel`](/api-reference/endpoint/get-market-intel), [`/markets/smart-money-flows`](/api-reference/endpoint/smart-money-flows)).
* Market search and explore ([`/markets/search`](/api-reference/endpoint/search-markets), [`/markets/explore`](/api-reference/endpoint/explore-markets)).

When a field is thin or absent for Kalshi, [trust metadata](/concepts/trust-metadata) marks it (`unsupported` sources surface as `unavailable`), so you can detect coverage gaps in code instead of guessing.