Groundtruth

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://api.groundtruths.xyz/mcp

claude mcp add --transport http groundtruth https://api.groundtruths.xyz/mcp

{
  "mcpServers": {
    "groundtruth": {
      "url": "https://api.groundtruths.xyz/mcp"
    }
  }
}

{
  "servers": {
    "groundtruth": {
      "type": "http",
      "url": "https://api.groundtruths.xyz/mcp"
    }
  }
}

https://api.groundtruths.xyz/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 7, 2026. The maker wrote them, not us; we show them as plain text.

• line_check_board

  LINE CHECK: who is buying the prediction-market line. Polymarket games starting in the next 72 h and the US midterm race board (Nov 3): per market, the side with the most fresh-or-clustered money, its $ and wallets (k of N), price, HEAT 0-100 with its N, and the pre-start stamp h

• market_heat

  HEAT for one Polymarket market (condition id): the share of a side's $ from fresh or clustered wallets, ranked 0-100 against sides with real money (>= $1,000 on the side and some fresh-or-clustered $), with N. heat is null (with the reason) when the market has none. Information o

• pm_market_board

  GROUNDTRUTH market board: who is in on Polymarket games and US midterm races. Per market: sides, price, $, wallets, tagged holders, GT line and Smart-money line. Top 3 per board free; a paid key or x402 (https://api.groundtruths.xyz/x402/v1/pm/board) returns every market. Informa

• pm_edges

  Markets where GT line and the Smart-money line sit 3+ points apart on the same side, with the fills and wallets behind each. Top 3 free; the rest paid. A gap is not a call.

• pm_smart_money_entries

  Smart-money entry feed: wallet, side, $, price, time, lag, and whether GT logged it live, late, or rebuilt it afterwards. Newest 3 free; the rest paid.

• pm_wallet_record

  A Polygon (Polymarket) wallet's record: won X of Y with the sample size, P&L (labelled GT audited or Polymarket receipt), category split, tag. Paid only (x402 https://api.groundtruths.xyz/x402/v1/pm/wallet?addr= or a paid key). A record belongs to a wallet, not a person.

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 8, 2026

• ! Caution

  Maker matches the repo

  The publisher (groundtruths.xyz) is not the repo owner (groundtruth-now); someone else may have listed it

• … 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 149 ms (HTTP 200)

• – Not applicable

  Sign-in with OAuth

  No sign-in needed

• ✓ Pass

  No hidden instructions in tool descriptions

  Read 6 tool descriptions and found no hidden instructions to the AI

Compared with others in Crypto & blockchaini

• More stars than 0% of the other 1613 servers in this category
• Published to the registry more recently than 99% of the other 1613 servers in this category
• Basic checks equal to or better than 40% of the other 1613 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:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

README from the maker

curl -i 'https://api.groundtruths.xyz/x402/v1/pm/board'

curl -s -H 'PAYMENT-SIGNATURE: <base64 payload>' 'https://api.groundtruths.xyz/x402/v1/pm/board'

{

install the skill at https://github.com/groundtruth-now/groundtruth-mcp/tree/main/skills/groundtruth