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Romny Cross-Venue Odds – Robinhood Prediction Market Catalog
x402
Romny Cross-Venue Odds – Robinhood Prediction Market Catalog is a paid API for AI agents from api.romny.dpdns.org, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-23).
Returns a paginated catalog of Robinhood prediction-market events and contracts, normalized for cross-venue comparison with Polymarket.
Price / call$0.02
Success—
StatusUnknown
How this service works
Robinhood prediction-market event/contract catalog (normalized)
Output
Returns a paginated list of normalized Robinhood prediction-market event and contract records, including contract IDs (usable as pagination cursors), statuses, and category labels, structured for cross-venue comparison with Polymarket data.
Example use cases
Arbitrage opportunity discovery
“Pull up to 200 active Robinhood prediction market contracts and filter for anything in the economics category — I want to compare them against Polymarket prices.”
Browsing all available markets
“Give me the full list of all Robinhood prediction market contracts, active and inactive, up to 500 results, so I can see the complete event catalog.”
Paginating through contract catalog
“I already have a cursor from my last Robinhood markets fetch — continue from that cursor and get the next 50 active prediction market contracts.”
Technical details
Endpoint
GEThttps://api.romny.dpdns.org/v1/rh/markets?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a browsable, paginated catalog of Robinhood prediction-market contracts — especially when building cross-venue comparisons or arbitrage screens against Polymarket. Prefer this over the RH↔Polymarket matched-pairs endpoint when you need to discover or enumerate all available Robinhood contracts rather than only those already matched to Polymarket counterparts.
Side effects
- Invalid limit value outside 1-500 range returns an error
- Invalid status enum value (not 'active' or 'all') returns a validation error
- Expired or invalid pagination cursor returns an error or empty results
- Payment failure via x402 protocol results in 402 response blocking data access
- Network timeout if the upstream Robinhood data source is unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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