Does Precog Markets have an API?

Yes. Precog Markets documents a public API for market data and trading.

What can you trade on Precog Markets?

Event contracts on politics, sports, economics, entertainment, science and other events. Individual markets open and close, so check the live list before depositing.

Ad disclosureAffiliate links on this page. Compensation does not affect scores. Methodology →

Platform review

Precog Markets review

Open-source LS-LMSR prediction markets on Base and Arbitrum

CryptoAvailability unverified

Our verdict

Open-source LS-LMSR prediction markets on Base and Arbitrum. A catalogue entry built from the operator’s own pages; scored provisionally from its own documents; we have not traded on it.

4.2/10

Editor score

Preliminary

No sign-up link available for this platform yet.

Affiliate link · 18+ · trading involves risk

Score last changed: 30 Sept 2026

Score breakdown — 4 of 9 criteria rated (preliminary)

4 of 9 criteria are assessed, covering 50% of the declared weight. The remaining weight is redistributed proportionally rather than counted as zero.

Fees & costs4.0/1030% (declared 15%)
Precog's docs (learn.precog.markets, read 30 Sep 2026) say 'Buying outcome shares has no fee'. The same docs describe an 'Overround: suggested range: 0.02–0.3', defined as 'the margin built into prices' on the LS-LMSR curve. Each market also sets a 'Sell Fee: suggested range: 0–20%', split between LPs, the creator and the protocol. The Terms add that fees 'may include protocol, sell, creator, operator, liquidity, resolution, relayer' and other charges, shown per market. A 2–30% margin built into prices plus a variable exit fee is costlier and less predictable than Predict.fun (8.0) or Polymarket intl (6.5); holding to resolution avoids the sell fee.
Regulation & trust2.0/1030% (declared 15%)
Precog Core's Terms of Use (core.precog.markets/terms, last updated 14 Sep 2026, read 30 Sep 2026) name the operator as 'CircleDot LLC', governed by English law with LCIA arbitration in London. Schedule A restricts about 50 jurisdictions, including the US, UK, France and Germany, plus any place where use 'would require a license or registration the Company does not hold'. No licence is claimed, and the LLC's state or country of registration is not stated. The interface is non-custodial. That is the low end of the 'named operator + terms, no licence' band.
Market variety5.0/1024% (declared 12%)
Precog Core's home page (core.precog.markets, read 30 Sep 2026) listed about 20 open markets. Topics included AI leaderboard rankings, Spotify and box-office charts, Brazil's first-round election, Argentine inflation and the dólar blue rate, the October Fed decision, World Cup qualifiers, F1, the Ballon d'Or, the Copa Libertadores and fuel prices. That spans politics, sports, economy, entertainment, science and other, 6 of 7 categories, with no crypto seen. The count is small and heavily Argentina-focused, so it sits above IBKR (4.0) and below FanDuel (6.5).
Resolution7.5/1016% (declared 8%)
Precog's docs (read 30 Sep 2026) describe 'a two-layer decentralized resolution system: Reality.eth for crowdsourced answers and Kleros as an arbitration backstop'. After a market closes, 'anyone can submit an answer by posting a bond', and challengers must post 'a bond at least double the previous one'. Disputes that bonding cannot settle go to Kleros jurors, whose ruling 'is final and onchain'. The Terms confirm 'The Company is not the arbiter of outcomes'. Both the mechanism and the escalation route are documented. It rates a step below Polymarket intl (8.5, UMA) because bonds and challenge windows are 'set per market' by creators.

Weights are published in full on our methodology page. Commercial relationships are not an input to this model.

Verified documents & product scope

Check country eligibility

Choose the country you want to check. This lookup does not change your site region or establish individual account approval.

Country

Where is Precog Markets available?

No eligibility rules or restricted-country list found on Precog's own pages.

What fees does Precog Markets charge?

"Buying outcome shares has no fee." Selling may incur a market-specific fee split between LPs, the market creator and the protocol; the amount is shown before confirming (https://learn.precog.markets/).

These are document checks, not a funded-account test. Access may depend on residence, physical location, account approval and the contract category. Check the operator’s current terms before depositing.

Learn how play-money and real-money markets differ, use the fee and payout tools, or read our review methodology.

See our Platform documentation audit for the method and downloadable source register.

Precog Docs (llms.txt) — checked 2026-09-30
"Precog is a fully onchain, multichain prediction market protocol deployed on Base and Arbitrum (with Ethereum coming soon)."
Precog Docs - Fees — checked 2026-09-30
No buy fee; sell fees, when present, split between LPs, market creator and protocol. "Any ERC-20 token can be used as collateral."
Precog Docs - Market Resolution — checked 2026-09-30
Reality.eth bonded answers with Kleros arbitration if disputed.
Precog homepage — checked 2026-09-30
"Live on Base Arbitrum"; ForecastOS gives AI agents tools to create, fund and trade markets.
Precog Core market page — checked 2026-09-30
Live market priced in USDC on Base (chain 8453).
Precog Core Terms of Use (14 Sep 2026) — checked 2026-09-30
CircleDot LLC; English law; LCIA arbitration; restricted list incl. US and UK.
Precog Core home — checked 2026-09-30
About 20 open markets across AI, music, entertainment, politics, economy, sports, energy.

Prices and liquidity

We do not currently publish live quotes for Precog Markets. Check the platform’s order book before placing an order: the last trade can differ from the price available for your position size.

How to assess liquidity and spreads →

Precog Markets FAQ

What fees does Precog Markets charge?: "Buying outcome shares has no fee." Selling may incur a market-specific fee split between LPs, the market creator and the protocol; the amount is shown before confirming (https://learn.precog.markets/).
Is Precog Markets regulated?: No licence or operating entity stated; no Terms of Service found on precog.markets or the app. Docs describe it as "a fully onchain prediction market protocol" where "no central party controls outcomes, holds your funds" (https://learn.precog.markets/).
Who can use Precog Markets?: No eligibility rules or restricted-country list found on Precog's own pages.
Does Precog Markets have an API?: Yes. Precog Markets documents a public API for market data and trading.
What can you trade on Precog Markets?: Event contracts on politics, sports, economics, entertainment, science and other events. Individual markets open and close, so check the live list before depositing.

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Authorship

Written by PredictHub editorial

Key facts

Key facts for Precog Markets
Type	Crypto / on-chain
Launched	—
Jurisdiction	—
Licensing	—
Trading fees	No buy fee; market-set sell fee
Withdrawal fee	—
Minimum deposit	—
Currencies	USDC, ETH
KYC required	—
KYC trigger	—
Market categories	Politics, Sports, Economy, Entertainment, Science, Other
Public API	Yes
Mobile apps	—
Supported countries	—

Regulatory status

No licence or operating entity stated; no Terms of Service found on precog.markets or the app. Docs describe it as "a fully onchain prediction market protocol" where "no central party controls outcomes, holds your funds" (https://learn.precog.markets/).

On this page

Complaints

No verified complaints against Precog Markets have been published. Cases are checked before they appear, so this counts what we confirmed — not what was sent to us.

See the case log →