Every change Wellknown observed on this MCP server, newest first, with what it was before and what it became. Tool-surface changes carry the definition diff. Nothing here is edited after the fact.
Changed the definition of "compare_executable_quotes", "compare_platforms", "get_executable_quote" and 3 more
ComparePolymarketonequotePolymarket-Kalshiandpair,webfeescomparisonincludedlink
Fetch size-aware order-book fills andReturnestimatedthetakerPolymarketfeesquote for onePolymarket contractpairandplusonethe Kalshicontract, then compare their complete rules. Ittickeronlyandnamesnotice.a bestNovenueKalshiwhenprices,thefees,pair
Displayed-oddsPolymarketspread,oddsPolymarketandvshumanKalshicomparison(researchpageonly)link
Compare candidate equivalent eventsReturnonindependent Polymarketvs Kalshi side by side. Returns displayed probabilitiesodds andtheir spread as
Walk the current public order book forGet anall-in cash-sized BUY quote on one exact contract. `platform` is polymarket or kalshi; `market_id` is theindependent Polymarketmarketid or Kalshi ticker returned by search; `side` is the outcome to buy. Returns best bid/ask, depth-weightedall-inaverageorder-bookfillquote,worst consumed level,includingshares,estimatedtakerfee, effective average price,fees andunfilled cash. The budget includes the fee estimate. Venue-side roundingdepth.canKalshi
Getlivecurrentprediction-marketPolymarketoddsprobabilities for areal-worldnatural-language event,phrased as a natural languagequestion.Call this when the user asks about the probability, odds, orlikelihood of any future event (elections, sports results, crypto prices, Fed decisions, geopolitics). Example: "will France win the World Cup".Returnsthe best-matching marketawithconservativelyimpliedmatchedprobabilitiesmarket and source links. Forwhich venue fills the SAME contractPolymarket executable
Cross-venuePolymarket quotes and human arbitragecandidatespage link
Scan every fingerprint-pinned equivalent Polymarket–Kalshi binary pair for two-leg coverage. It buys opposite sides at equal whole-contract size, walks current ask depth, includes estimated taker feesReturnandindependentconservativePolymarketKalshi rounding,quotes andemits a candidate only when total all-in cost is belowthecommon settlement payout. Resultswebsitearenotice
CheaperIndependentvenuePolymarketacrossquotesallfrommatchedthepairspair directory
Rank both YES and NO across every human-reviewed equivalent Polymarket–Kalshi pair. Each row walksListcurrentindependentpublicPolymarketdepthquoteswithin
Changed the definition of "check_bet", "compare_executable_quotes", "compare_platforms" and 15 more
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Pre-bet check: EV vs the market{"properties":{"event":{"description":"The event in plain words, e.g. 'Lakers vs Celtics tonight'","title":"Event","type":"string"},"forecaster_id":{"default":"","description":"Optional public handle for that receipt","title":"Forecaster Id","type":"string"},"odds_offered":{"default":"","description":"Odds offered by the user's book: decimal '2.10', american '+110' or fractional '11/10'","title":"Odds Offered","type":"string"},"side":{"description":"The side the user wants to back, e.g. 'Lakers'","title":"Side","type":"string"},"sport":{"default":"upcoming","description":"Sport key such as 'basketball_nba', or 'upcoming'","title":"Sport","type":"string"},"your_probability":{"default":0,"description":"Optional: your own probability 0-1 to log as an audited receipt (needs forecaster_id)"
Certificate changed, valid to 2026-12-24
Changed the definition of "get_world_cup_brief", "get_world_cup_matchday" and "get_world_cup_odds"
ARCHIVED: World Cup 2026 ended 2026-07-19; returns an archive notice. Get a citeable World Cup 2026 prediction-market briefing ⟨44 unchanged words⟩
ARCHIVED: World Cup 2026 ended 2026-07-19; returns an archive notice. Get the daily World Cup 2026 matchday market ⟨36 unchanged words⟩
Recently observed → Live
Live → Recently observed
Certificate recorded, valid to 2026-11-01
Authorization not required
First tool surface recorded: 18 tools (server version 1.30.0)
Showing the latest 9 events. The API returns up to 500 and filters by kind: ?kind=tool_surface_changed
⟨2 unchanged words⟩ default":10,"description":"Maximum number ofpairsPolymarket markets to return","title":"Limit","type" ⟨3 unchanged words⟩ "","description":"Optional keywords to filtermarketPolymarket questions","title":"Query","type": ⟨5 unchanged words⟩
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{"destructiveHint":false,"idempotentHint":false,"openWorldHint":true,"readOnlyHint":false}before
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Compare one Polymarket-Kalshi pair, fees included⟨46 unchanged words⟩ blockers instead of a fabricated spread or arbitrage. Use this when you already know both ids of one pair; to scan every matched pair use list_executable_opportunities.
{"properties":{"amount_usd":{"default":100,"description":"All-in budget in USD per venue, estimated taker fees included","title":"Amount Usd","type":"number"},"kalshi_ticker":{"description":"Kalshi market ticker","title":"Kalshi Ticker","type":"string"},"polymarket_id":{"description":"Polymarket market id","title":"Polymarket Id","type":"string"},"side":{"default":"Yes","description":"Outcome to buy on both venues, usually 'Yes' or 'No'","title":"Side","type":"string ⟨7 unchanged words⟩
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{"openWorldHint":true,"readOnlyHint":true}before
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Displayed-odds spread, Polymarket vs Kalshi (research only)⟨46 unchanged words⟩ `query` filters by keywords in the market question. Displayed probabilities only; for executable all-in prices use list_executable_opportunities or compare_executable_quotes.
{"properties":{"limit":{"default":10,"description":"Maximum number of pairs to return","title":"Limit","type":"integer"},"query":{"default":"","description":"Optional keywords to filter market questions","title":"Query","type":"string ⟨4 unchanged words⟩
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{"openWorldHint":true,"readOnlyHint":true}before
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Best bookmaker price for a bet{"properties":{"event":{"description":"The event in plain words","title":"Event","type":"string"},"side":{"description":"The side the user has decided to back","title":"Side","type":"string"},"sport":{"default":"upcoming","description":"Sport key such as 'basketball_nba', or 'upcoming'","title":"Sport","type":"string ⟨7 unchanged words⟩
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{"openWorldHint":true,"readOnlyHint":true}before
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Edge signals worth researching⟨47 unchanged words⟩ each signal states what to verify before acting. Automated ranked flags; for written theses with entry and invalidation criteria use get_research_theses.
{"properties":{"limit":{"default":10,"description":"Maximum number of signals to return","title":"Limit","type":"integer"}} ⟨4 unchanged words⟩
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{"openWorldHint":true,"readOnlyHint":true}before
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Executable all-in quote on one venue⟨72 unchanged words⟩ this tool does not assert cross-venue contract equivalence. Single venue only; to compare both venues for the same contract use compare_executable_quotes.
{"properties":{"amount_usd":{"default":100,"description":"All-in budget in USD, estimated taker fees included","title":"Amount Usd","type":"number"},"market_id":{"description":"Polymarket market id or Kalshi ticker","title":"Market Id","type":"string"},"platform":{"description":"'polymarket' or 'kalshi'","title":"Platform","type":"string"},"side":{"default":"Yes","description":"Outcome to buy, usually 'Yes' or 'No'","title":"Side","type":"string ⟨7 unchanged words⟩
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{"openWorldHint":true,"readOnlyHint":true}before
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Your audited forecaster record{"properties":{"forecaster_id":{"description":"The handle you used with submit_forecast","title":"Forecaster Id","type":"string" ⟨6 unchanged words⟩
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{"openWorldHint":true,"readOnlyHint":true}before
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Prediction-market odds for an event⟨49 unchanged words⟩ best-matching market with implied probabilities and source links. For which venue fills the SAME contract cheaper, use list_executable_opportunities (all matched pairs) or compare_executable_quotes (one pair) instead.
{"properties":{"question":{"description":"Natural-language question about a future event, e.g. 'Will the Fed cut rates in December?'","title":"Question","type":"string"}} ⟨6 unchanged words⟩
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{"openWorldHint":true,"readOnlyHint":true}before
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Research desk theses⟨41 unchanged words⟩ ideas. Research framing only - not financial advice. Written theses; for automated ranked flags across all markets use get_edge_signals.
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{"openWorldHint":true,"readOnlyHint":true}before
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VoxOdds AI-vs-market audited track recordbefore
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{"openWorldHint":true,"readOnlyHint":true}before
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World Cup 2026 brief (archived)before
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{"openWorldHint":true,"readOnlyHint":true}before
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World Cup 2026 matchday (archived){"properties":{"date":{"default":"","description":"Archived tool; optional YYYY-MM-DD","title":"Date","type":"string"}} ⟨4 unchanged words⟩
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{"openWorldHint":true,"readOnlyHint":true}before
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World Cup 2026 odds (archived)before
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{"openWorldHint":true,"readOnlyHint":true}before
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Cross-venue arbitrage candidates⟨64 unchanged words⟩ uses a family key returned by the tool. This is two-leg coverage; to find the cheaper venue for buying a single side use list_executable_opportunities.
{"properties":{"family":{"default":"","description":"Optional market family key returned by this tool","title":"Family","type":"string"},"max_capital_usd":{"default":100,"description":"Maximum capital in USD across both legs","title":"Max Capital Usd","type" ⟨5 unchanged words⟩
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{"openWorldHint":true,"readOnlyHint":true}before
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Cheaper venue across all matched pairs⟨72 unchanged words⟩ the largest currently executable cross-venue price differences are. This answers 'where is it cheaper to buy one side'; for buying opposite sides on both venues for a covered payout use list_arbitrage_candidates.
{"properties":{"amount_usd":{"default":100,"description":"All-in budget in USD, estimated taker fees included","title":"Amount Usd","type":"number"},"family":{"default":"","description":"Optional market family key returned by this tool, e.g. 'democratic_nominee_2028'","title":"Family","type":"string"},"side":{"default":"","description":"Optional 'Yes' or 'No' to restrict the side","title":"Side","type":"string ⟨4 unchanged words⟩
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{"openWorldHint":true,"readOnlyHint":true}before
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Sportsbook surebet candidates{"properties":{"capital_usd":{"default":100,"description":"Total stake in USD split across the outcomes","title":"Capital Usd","type":"number"},"sport_key":{"default":"upcoming","description":"Sport key such as 'basketball_nba', or 'upcoming' for all","title":"Sport Key","type": ⟨5 unchanged words⟩
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{"openWorldHint":true,"readOnlyHint":true}before
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Trending prediction markets⟨36 unchanged words⟩ `search` filters by keyword in the market question. Browsing tool; to answer a specific question about one event use get_market_odds.
{"properties":{"category":{"default":"","description":"Optional category: Politics, Crypto, Sports, Geopolitics, Economics, Tech or Culture","title":"Category","type":"string"},"limit":{"default":20,"description":"Maximum number of markets to return","title":"Limit","type":"integer"},"search":{"default":"","description":"Optional keyword that must appear in the market question","title":"Search","type":"string ⟨4 unchanged words⟩
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{"openWorldHint":true,"readOnlyHint":true}before
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Submit a forecast (audited, append-only){"properties":{"forecaster_id":{"description":"Your stable public handle: 3-32 chars, a-z, 0-9 and dashes","title":"Forecaster Id","type":"string"},"market_id":{"description":"Market id from list_trending_markets or get_market_odds","title":"Market Id","type":"string"},"outcome":{"description":"Exact outcome name of that market, e.g. 'Yes'","title":"Outcome","type":"string"},"probability":{"description":"Your probability for that outcome, 0.01-0.99","title":"Probability","type":"number"} ⟨9 unchanged words⟩
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{"destructiveHint":false,"idempotentHint":false,"openWorldHint":false,"readOnlyHint":false}ARCHIVED: World Cup 2026 ended 2026-07-19; returns an archive notice. Get live World Cup 2026 odds: tournament winner ⟨52 unchanged words⟩