# x402 Polymarket Market Detail

> x402 Polymarket Market Detail is a paid API for AI agents from x402tap.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).

Returns full detail (prices, volume, liquidity, resolution metadata) for a single Polymarket prediction market identified by its slug

## Facts

- Endpoint: GET https://x402tap.com/api/polymarket-market?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-polymarket-market-detail-0dfcfc52
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3ADQnx5g-EvrwE6N86Z2B

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-polymarket-market-detail-0dfcfc52
```

Example prompt: Pull up the current Polymarket market details for the 'xi-jinping-out-before-2027' market — I want to see the Yes/No prices, liquidity, and how much it's traded in the last week.

## When to prefer this

Use this endpoint when you need detailed, real-time data on a specific Polymarket prediction market by its slug — including precise outcome prices, liquidity depth, volume metrics, and resolution status. Prefer this over a market-list endpoint when you already know the market slug and need comprehensive single-market data. Choose this over generic web search when you need structured, machine-readable probability and trading data rather than articles or commentary.

## Known failure modes

- Invalid or misspelled slug returns an error or empty response
- Market slug not found if the market has been delisted
- Stale data if Polymarket API is temporarily unavailable
- Rate limiting if many calls are made in quick succession
- Missing optional fields if market is newly created and has low activity

## How this service works

Get full detail (prices, volume, liquidity, resolution) for a single Polymarket market by slug

## Output

A JSON object containing the market's question, slug, active/closed status, end date, outcome labels (e.g. Yes/No), current outcome prices (probabilities), liquidity in USD, 24-hour volume, 7-day volume, total volume, and a description of resolution criteria.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "slug"
     ],
     "properties": {
      "slug": {
       "type": "string",
       "description": "Polymarket market slug (from the URL or /api/polymarket-markets)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "slug": "xi-jinping-out-before-2027",
  "active": true,
  "closed": false,
  "endDate": "2026-12-31T00:00:00Z",
  "outcomes": [
   "Yes",
   "No"
  ],
  "question": "Xi Jinping out before 2027?",
  "liquidity": 233436.44,
  "volume1wk": 122625.33,
  "volume24hr": 23665.67,
  "description": "This market will resolve to \"Yes\" if...",
  "volumeTotal": 12084934.95,
  "outcomePrices": [
   0.0445,
   0.9555
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-polymarket-market-detail-0dfcfc52/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402tap.com](https://www.zero.xyz/host/x402tap.com/llms.txt)