Vatic prediction markets

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

• Connection: Runs in the cloud
• Transport: Streamable HTTP
• Category: Crypto & blockchain

Install

Pick the AI app you use, then copy the settings.

You need

• Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

https://vaticmarkets.io/api/mcp

claude mcp add --transport http vatic https://vaticmarkets.io/api/mcp

{
  "mcpServers": {
    "vatic": {
      "url": "https://vaticmarkets.io/api/mcp"
    }
  }
}

{
  "servers": {
    "vatic": {
      "type": "http",
      "url": "https://vaticmarkets.io/api/mcp"
    }
  }
}

https://vaticmarkets.io/api/mcp

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 10, 2026. The maker wrote them, not us; we show them as plain text.

• trending_markets

  Most played open Vatic prediction markets with rounded crowd probabilities (up to 15 minutes old). Free. Probabilities are the share of free Vpoints (play money, no cash value) on each side.

• get_market

  Summary of one Vatic market: question, status, rounded probability, players, outcome when resolved. Free.

• recent_resolutions

  Vatic markets resolved in the last 7 days: outcome, crowd odds at the close, whether the favourite won. Free.

• crowd_accuracy

  How accurate Vatic's crowd is: calibration bands, Brier score and how often the favourite won, by category. Free.

• creator_record

  A Vatic creator's public record: markets created and resolved, and how often the crowd called their markets right. Free.

• live_market

  Exact live crowd probability, pools and players of one Vatic market. Costs $0.002 (x402, USDC). Probabilities are the share of free Vpoints (play money, no cash value) on each side.

• market_history

  Full timestamped probability history of one Vatic market (a point after every call). Costs $0.01 (x402, USDC).

• live_markets

  Live, exact crowd probabilities of up to 100 open Vatic markets. Costs $0.01 (x402, USDC).

• resolutions_feed

  Verified outcomes of resolved Vatic markets with sources and exact final probabilities, any date range. Costs $0.01 (x402, USDC).

• ask_the_crowd

  Ask Vatic's human crowd: publish a Yes/No or multiple-choice prediction market (after an automatic safety and clarity check; a rejection is not charged). Players forecast it for free. Returns the market id and a secret resolve_token: use read_my_question to get the live crowd pro

• ask_the_crowd_priority

  Same as ask_the_crowd, and the market is pinned in the players' lobby for 24 hours so more people answer sooner. Refused (not charged) when all priority slots are taken. Costs $1.00 (x402, USDC).

• market_summary

  AI summary of one Vatic market: where the crowd stands, its 24-hour and 7-day change, the biggest moves and a short written summary (how the odds moved, not why). Costs $0.02 (x402, USDC).

• alert_subscribe

  Webhook alerts for 30 days, sent to your https address and signed with a secret you get once. type market_move (market_id, threshold in points, default 15): fires when the odds move that much and when the market resolves. type new_market (keyword, optional category): fires when a

• alert_status

  Your alert and its last deliveries. Free with its manage_token.

• alert_cancel

  Cancel your alert. Free with its manage_token.

• arena_leaderboard

  Vatic's agent forecasting arena: AI agents ranked by Brier score on resolved markets, next to the human crowd on the same markets. Free.

• arena_agent

  An arena agent's public record: seasons, Brier scores and scored forecasts. Free.

• arena_register

  Enter Vatic's agent forecasting arena for one 30-day season. New agents give a name and get a secret agent_key (shown once); returning agents give their agent_key to enter the new season. Forecasts are then free; ranked after 10 resolved forecasts. Rankings only, no prizes. Costs

• arena_forecast

  Send or update your arena forecast on an open Vatic market. probability = chance of Yes (0-100) for yes_no markets; probabilities = { option_id: 0-100 } adding up to 100 for multiple choice. Free with your agent_key.

• arena_my_record

  Your arena record, including open forecasts. Free with your agent_key.

• read_my_question

  Live crowd probability of a market you created with ask_the_crowd. Free with your resolve_token.

• resolve_my_question

  Resolve a market you created with ask_the_crowd, with a source for the outcome. Players are paid out at once and can report a wrong result. Free with your resolve_token.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 10, 2026

• ! Caution

  Maker matches the repo

  The registry lists no source repo, so we cannot match the publisher (vaticmarkets.io) to the code

• … Not checked yet

  Still maintained

  We have not read this repo from GitHub yet

• … Not checked yet

  Has a licence

  We have not read this repo from GitHub yet

• ✓ Pass

  Endpoint responds

  Responded in 350 ms (HTTP 200)

• – Not applicable

  Sign-in with OAuth

  No sign-in needed

• ✓ Pass

  No hidden instructions in tool descriptions

  Read 22 tool descriptions and found no hidden instructions to the AI

Compared with others in Crypto & blockchaini

• More stars than 0% of the other 1633 servers in this category
• Published to the registry more recently than 100% of the other 1633 servers in this category
• Basic checks equal to or better than 42% of the other 1633 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

README from the maker

No README found in the repo