---
title: "Kalshi Polymarket Spread"
method: POST
path: "/v1/marketplace/api/kalshi-polymarket-spread"
tags: ["Marketplace"]
---

# Kalshi Polymarket Spread

`POST /v1/marketplace/api/kalshi-polymarket-spread`

## Request

- Base URL: `https://api.jarvisclaw.ai`
- URL: `https://api.jarvisclaw.ai/v1/marketplace/api/kalshi-polymarket-spread`
- Auth: HTTP x402

Retrieve the current spread information for Kalshi and Polymarket.

## Request body

- FederationResourceInput: Parameters for the target resource, forwarded verbatim upstream. The accepted fields differ per resource; list them with GET /api/marketplace/apis. Sending an empty object returns a 402 quote for that resource.

## Response `200`

OK

## Other responses

- `402`: Payment Required

---

[API](https://skmtc.dev/jarvisclaw/apis/jarvisclaw-api.md) · [All operations](https://skmtc.dev/jarvisclaw/apis/jarvisclaw-api/llms.txt) · [OpenAPI document](https://skmtc.dev/jarvisclaw/apis/jarvisclaw-api/revisions/2011c77f4e4f?raw)