predictDEX

by dex.mk · remote · no sign-in to list tools · v1.0.0 · published by mk.dex

Live Polymarket odds, order books, fee-inclusive quotes and non-custodial prediction trading.

Changes · 3

Compare Registry entry

11 tools: 3 change things and 8 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone0Claude Code: ask
Changes things3Claude Code: ask: see these tools
Only reads8Claude Code: allow: see these tools

2 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http predictdex https://predict.dex.mk/mcp

Findings

Matches of fixed checks, with the text they matched.

2 warn

Warncreate_trade_link
The server marks "create_trade_link" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "create_trade_link" says "create": a word for a change.
What this check looks for
Warnget_positions
The server marks "get_positions" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "get_positions" says "get": a word for reading.
What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

11 tools

Changes things 3Creates or changes something that can be changed back.Claude Code: ask

attest_agentSubmit the signed attestation.No findings
Why it is in this group
- The description's first verb is "submit": a word for a change.
Description, as the server wrote it
Submit the signed attestation. Returns a 30-day agent token that unlocks gasless Polymarket account setup through predictDEX's signer for your address only. It grants no custody and no exemption from region rules.
Annotations the server declares
- title: Attest as an agent (get a token)
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: true
create_trade_linkA pre-filled predictDEX ticket URL (event, market, outcome, side, amount) for a person to review and sign in their own wallet.1 finding
Why it is in this group
- The name "create_trade_link" says "create": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "create_trade_link" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "create_trade_link" says "create": a word for a change.
  What this check looks for
Description, as the server wrote it
A pre-filled predictDEX ticket URL (event, market, outcome, side, amount) for a person to review and sign in their own wallet. Opening it executes nothing. Use this when you have no wallet or need human confirmation.
Annotations the server declares
- title: Create a trade link for a person
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
get_positionsOpen positions of a Polymarket trading account or its owner address: size, average price, current price, value and P&L.1 finding
Why it is in this group
- The name "get_positions" says "get": a word for reading.
- The description's first verb is "open": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "get_positions" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "get_positions" says "get": a word for reading.
  What this check looks for
Description, as the server wrote it
Open positions of a Polymarket trading account or its owner address: size, average price, current price, value and P&L.
Annotations the server declares
- title: Get positions of a wallet
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

Only reads 8Looks things up and changes nothing.Claude Code: allow

get_agent_challengeReturns the canonical 'predictDEX Agent Attestation v1' message for your address.No findings
Why it is in this group
- The name "get_agent_challenge" says "get": a word for reading.
Description, as the server wrote it
Returns the canonical 'predictDEX Agent Attestation v1' message for your address. Sign it with EIP-191 personal_sign within 10 minutes and pass it to attest_agent.
Annotations the server declares
- title: Get an agent attestation challenge
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
get_eventFull event by slug: every market, outcome names and prices, token ids, tick size, min order size, rules summary, resolution source and status.No findings
Why it is in this group
- The name "get_event" says "get": a word for reading.
Description, as the server wrote it
Full event by slug: every market, outcome names and prices, token ids, tick size, min order size, rules summary, resolution source and status. Optionally include recent trades.
Annotations the server declares
- title: Get one event
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
get_leaderboardTop Polymarket traders by profit or volume over a window.No findings
Why it is in this group
- The name "get_leaderboard" says "get": a word for reading.
Description, as the server wrote it
Top Polymarket traders by profit or volume over a window.
Annotations the server declares
- title: Get the trader leaderboard
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
get_orderbookLive order book for one outcome token: bids and asks (price 0-1, size in shares), spread, midpoint and last trade.No findings
Why it is in this group
- The name "get_orderbook" says "get": a word for reading.
Description, as the server wrote it
Live order book for one outcome token: bids and asks (price 0-1, size in shares), spread, midpoint and last trade.
Annotations the server declares
- title: Get the order book
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
get_price_historyPrice (probability) history for one outcome token over a range.No findings
Why it is in this group
- The name "get_price_history" says "get": a word for reading.
Description, as the server wrote it
Price (probability) history for one outcome token over a range.
Annotations the server declares
- title: Get price history
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
get_trading_setupEverything an agent with its own wallet needs to trade: chain, collateral (pUSD), builder code, signer URL, attestation steps, fees and a ready-to-run TypeScript snippet using Poly…No findings
Why it is in this group
- The name "get_trading_setup" says "get": a word for reading.
Description, as the server wrote it
Everything an agent with its own wallet needs to trade: chain, collateral (pUSD), builder code, signer URL, attestation steps, fees and a ready-to-run TypeScript snippet using Polymarket's official SDK. Non-custodial: you sign with your own key.
Annotations the server declares
- title: How to trade through predictDEX
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
quote_orderPreview an order against the live book without placing it: average and worst price, shares, cost, payout if the outcome wins, Polymarket fee, predictDEX fee and warnings.No findings
Why it is in this group
- The description's first verb is "preview": a word for reading.
Description, as the server wrote it
Preview an order against the live book without placing it: average and worst price, shares, cost, payout if the outcome wins, Polymarket fee, predictDEX fee and warnings. Market BUY amount is USD to spend all-in; market SELL and limit amounts are shares.
Annotations the server declares
- title: Quote an order (fee-inclusive)
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
search_marketsFind events and their markets with live odds.No findings
Why it is in this group
- The name "search_markets" says "search": a word for reading.
Description, as the server wrote it
Find events and their markets with live odds. Filter by free-text query, category slug (see predict://categories), sort and status. Each event lists markets with outcomes, token ids, best bid/ask, tick size and a human URL.
Annotations the server declares
- title: Search prediction markets
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http predictdex https://predict.dex.mk/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__predictdex__search_markets",
      "mcp__predictdex__get_event",
      "mcp__predictdex__get_orderbook",
      "mcp__predictdex__get_price_history",
      "mcp__predictdex__quote_order",
      "mcp__predictdex__get_trading_setup",
      "mcp__predictdex__get_leaderboard",
      "mcp__predictdex__get_agent_challenge"
    ],
    "ask": [
      "mcp__predictdex__create_trade_link",
      "mcp__predictdex__get_positions",
      "mcp__predictdex__attest_agent"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as predictdex. Review it before you use it.

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/mk.dex/predictdex/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Anlyon alternative

3 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

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Source: MCP Registry. Synced Oct 21, 2026, 18:53 UTC.

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