Prediction markets, Polymarket events

$0.01 per call · failed calls are never charged · no account needed: a card key or USDC

Polymarket events (one question with one or several markets, such as an election with many candidates): the busiest open events by 24-hour volume or those matching a search, with volume, liquidity, end date, tags, the number of open markets and the five leading outcomes by price. Use to see who leads a multi-candidate market or to browse what is being traded now.

Guide: Polymarket API, prediction market odds

Run it free (3 free calls) Buy credits by card (from $1) Example result (JSON)

Try it with your own inputs

Optional search, e.g. president 2028; without it the busiest events by 24h volume

Uses one of your 3 free calls. Nothing is charged, and a call that fails is not counted.

Inputs

NameTypeDescription
qstringOptional search, e.g. president 2028; without it the busiest events by 24h volume
limitintegerEvents to return, 1-10 (default 5)

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://glyphcall.com/polymarket/events?q=president"

Or one of your 3 free calls, no key:

curl "https://glyphcall.com/polymarket/events?q=president&trial=1"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum or Solana over x402; Base or Tempo over MPP) and retries.

Live result

The real answer to the request above, read 2026-11-15 18:55 UTC and refreshed every 15 minutes.

{
  "query": "president",
  "count": 5,
  "events": [
    {
      "title": "Presidential Election Winner 2028",
      "slug": "presidential-election-winner-2028",
      "url": "https://polymarket.com/event/presidential-election-winner-2028",
      "endDate": "2028-11-08T04:59:00Z",
      "volume24h": 268542.62,
      "volume": 742693484.84,
      "liquidity": 52612991.54,
      "tags": [
        "President",
        "United States",
        "US Election",
        "Elections",
        "Politics",
        "World Elections"
      ],
      "openMarkets": 128,
      "leading": [
        {
          "title": "Jon Ossoff",
          "slug": "will-jon-ossoff-win-the-2028-us-presidential-election",
          "yesPrice": 0.1755,
          "volume24h": 3647.9
        },
        {
          "title": "JD Vance",
          "slug": "will-jd-vance-win-the-2028-us-presidential-election",
          "yesPrice": 0.1545,
          "volume24h": 13387.12
        },
        {
          "title": "Marco Rubio",
          "slug": "will-marco-rubio-win-the-2028-us-presidential-election",
          "yesPrice": 0.0975,
          "volume24h": 18636.5
        },
        {
          "title": "Alexandria Ocasio-Cortez",
          "slug": "will-alexandria-ocasio-cortez-win-the-2028-us-presidential-election",
          "yesPrice": 0.0935,
          "volume24h": 10880.12
        },
        {
          "title": "Gavin Newsom",
          "slug": "will-gavin-newsom-win-the-2028-us-presidential-election",
          "yesPrice": 0.0745,
          "volume24h": 2274.04
        }
      ]
    },
    {
      "title": "Who will announce Presidential run before 2027?",
      "slug": "who-will-announce-presidential-run-before-2027",
      "url": "https://polymarket.com/event/who-will-announce-presidential-run-before-2027",
      "endDate": "2027-01-01T04:59:00Z",
      "volume24h": 5048.32,
      "volume": 1453924.23,
      "liquidity": 280216.82,
      "tags": [
        "Politics",
        "Celebrities",
        "Elections",
        "President",
        "2028 Election"
      ],
      "openMarkets": 72,
      "leading": [
        {
          "title": "Rahm Emanuel",
          "slug": "will-rahm-emanuel-announce-a-presidential-run-before-2027",
          "yesPrice": 0.2275,
          "volume24h": 66.76
        },
        {
          "title": "Andy Beshear",
          "slug": "will-andy-beshear-announce-a-presidential-run-before-2027",
          "yesPrice": 0.0845,
          "volume24h": 83.9
        },
        {
          "title": "Pete Buttigieg",
          "slug": "will-pete-buttigieg-announce-a-presidential-run-before-2027",
          "yesPrice": 0.064,
          "volume24h": null
        },
        {
          "title": "Mark Kelly",
          "slug": "will-mark-kelly-announce-a-presidential-run-before-2027",
          "yesPrice": 0.0565,
          "volume24h": 241.04
        },
        {
          "title": "Rand Paul",
          "slug": "will-rand-paul-announce-a-presidential-run-before-2027",
          "yesPrice": 0.055,
          "volume24h": null
        }
      ]
    },
    {
      "title": "Who will announce Presidential run before 2028?",
      "slug": "who-will-announce-presidential-run-before-2028-20260803142755224",
      "url": "https://polymarket.com/event/who-will-announce-presidential-run-before-2028-20260803142755224",
      "endDate": "2028-01-01T04:59:00Z",
      "volume24h": 3159.08,
      "volume": 267576.88,
      "liquidity": 132221.65,
      "tags": [
        "Politics",
        "Elections",
        "President",
        "Celebrities",
        "2028 Election"
      ],
      "openMarkets": 72,
      "leading": [
        {
          "title": "Pete Buttigieg",
          "slug": "will-pete-buttigieg-announce-a-presidential-run-before-2028-20260803143241607",
          "yesPrice": 0.936,
          "volume24h": null
        },
        {
          "title": "Andy Beshear",
          "slug": "will-andy-beshear-announce-a-presidential-run-before-2028-2026080314324
…

From an AI agent (MCP)

Add the MCP server to Claude, Cursor or any MCP client. This tool is polymarket_events, and the first 25 successful calls are free:

https://glyphcall.com/mcp

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