Matching Markets by URL
Find matching markets by providing a URL from any supported platform. The platform is auto-detected from the URL hostname.
/v2/matching-markets/urlQuery Parameters
Full URL from any supported platform (Polymarket, Kalshi, PredictIt).
Response Schema
Whether matching events were found.
Number of matching events returned.
Matched events with cross-platform market groups.
Event name.
Category: economics, sports, election, etc.
Date of the event.
Match confidence: "high" or "medium".
Market groups within this event.
Group title.
Matched markets: source, source_url, id.
Authentication
API Key
To secure your requests, we strongly recommend passing your API key via the X-API-Key header. This prevents sensitive keys from being exposed in access logs or browser history.
X-API-Key: pmx_test_5e8f...Rate Limits
API rate limits are enforced based on the tier associated with your API key. Limits are tracked on two dimensions: requests per second and requests per month. Only successful responses (where success is true) count toward your monthly quota.
Current usage is returned in every API response via the following headers:
X-RateLimit-Limit-Second: 10X-RateLimit-Remaining-Second: 9X-RateLimit-Limit-Month: 1000X-RateLimit-Remaining-Month: 842If you exceed a rate limit, the API returns a 429 status with a Retry-After header indicating when you can resume.
Request
Live API Key
Market URL
Response
Enter an API key and click "Try it now" to see the live response data.