Open Data

Every probability we have ever published, free to download and reuse.

The Morning Line records the market-consensus odds on every question it tracks, every morning, and never rewrites a past value. That archive is public. You can download the complete daily history for any tracked question as JSON or CSV, no key, no account, no rate limit.

What’s in it

One file per question, in both formats. Each row is one outcome on one day:

date,outcome,probability,source
2026-07-14,Above 12,0.91,tracked
2026-07-15,Above 12,0.94,tracked

probability is the market-consensus chance from 0 to 1 as of that morning. source is tracked for a value we recorded live and backfill for pre-tracking history reconstructed from the exchange’s own daily closes — the distinction is in the data because it matters: only tracked rows are numbers we published at the time.

Where to start

• index.json — the machine-readable directory: every tracked question with its page, its JSON and CSV URLs, category, and date range. Start here if you want the whole corpus.
• Browse the Odds Tracker — the download links sit at the foot of every question’s page.
• The full A–Z directory — every live question we track, including those below the tracker index’s cut.
• Completed questions — resolved markets, frozen at their final tracked odds, with what actually happened.

Licence, and the one thing we ask

The data is published under Creative Commons Attribution 4.0. You may copy, chart, model, redistribute and build commercial products on it. The single condition is attribution: credit The Morning Line and link back to the question page or to this site.

Something like:

Data: The Morning Line (https://themorningline.news)

If you publish something built on it, we would genuinely like to see it — [email protected].

What this data is, and isn’t

These are reported probabilities: what prediction markets collectively believed on a given morning. They are not our forecasts, and a number being here is not a claim that it was right. Values are captured from the first run of each day and never revised — an evening price flatters itself as settlement approaches, so the morning number is the honest one to judge against the outcome. How we build the numbers has the full method.

Coverage begins 7 July 2026 and deepens daily. Markets are excluded at capture time for cryptocurrency strike brackets and by the integrity rules described in the methodology.