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Riddle for institutions
Understand the contract behind the probability.
Investigate exact contracts across Kalshi, Polymarket and Limitless. Evaluate the observations Riddle holds and a documented API against the questions your desk works on.
Scope, permitted use and commercial terms are agreed in writing.
Contract research
Exact contracts. Explicit limitations.
Open exactly addressed contracts in the research workspace. Compare stored rules, typed yes and no quotes with size where available, source and receipt timestamps, and binary settlement scenarios using your own fee and slippage figures. Export your working as JSON or CSV.
Similar headlines are candidates, not evidence of equivalence. Recorded history is partial. Missing quote fields stay missing.
For existing approved users. New users request access, verify their email and wait for owner approval.
Institutional evaluation
Evaluate Riddle against your desk’s question.
For institutional desks
Investigate exact contracts, compare their rules and the observations Riddle has recorded, and evaluate the dataset and an integration against your desk's question before you rely on either.
An evaluation covers
- Market coverage for your question
- Field definitions
- Timestamps and what they record
- Historical availability
- Permitted use
We agree the evaluation scope, permitted use and any subsequent commercial terms in writing.
Data method
Know what each record can support.
The checks Riddle applies to its own data, and the questions worth asking of any prediction-market dataset.
Contract identity
A record is one contract on one venue, addressed by the venue's own identifier. A headline is not an identity.
Meaning and timing of a price
Prices are indicative observations, with recorded times where available. A provider's timestamp is kept separate from the time Riddle recorded the value. Quote fields such as bid, ask and size are kept distinct, and a missing field stays missing.
Historical coverage
History is the set of observations Riddle has recorded, which is partial. Observations recorded at the time and data recovered later from a provider are different evidence.
Candidate or equivalent
Contracts with similar headlines are candidate comparisons. They are treated as equivalent only once the wording, dates and settlement source support it.
Developers
A documented v1 API.
Search candidate markets, read contract metadata and pull the observations Riddle has recorded. Create, rotate and revoke your own development keys in the app, and read the reference before you build.
Research
- How to run prediction market researchA repeatable workflow from question to recorded conclusion.
- Comparing Kalshi and Polymarket contractsA checklist for wording, settlement source, dates and fees.
- Planning a prediction market API integrationIdentifiers, price conventions, resolution fields and storage.
Start with the questions you already follow.
Request access, verify your email, then wait for owner approval. If you are evaluating Riddle for a desk, write to us with the question you work on.
The desk link opens your email client with a draft you can edit before sending.
Team or integration enquiry
Leave your email and we will get back to you about team use or an integration. For access, request access, verify your email, then wait for owner approval.
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