Polymarket, Manifold, Metaculus compared: one fair probability per question. No API key needed.
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One server, in finance & commerce. Polymarket, Manifold, Metaculus compared: one fair probability per question. No API key needed.
Finance & Commerce
Polymarket, Manifold, Metaculus compared: one fair probability per question. No API key needed.
The rest either hold an API key issued by the publisher or ask for nothing.
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