# ADH Polymarket Odds Feed

> ADH Polymarket Odds Feed is a paid API for AI agents from agentdatum.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Fetches real-time prediction market odds and probabilities from Polymarket across ~40 active markets, including liquidity and volume data.

## Facts

- Endpoint: GET https://agentdatum.com/api/v1/d/polymarket-odds
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/adh-polymarket-odds-feed-da3b350d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VLnMk0Jdvpau6AcG4rhTW

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 adh-polymarket-odds-feed-da3b350d
```

Example prompt: Pull the latest Polymarket odds across all active markets so I can see which political or macro events the crowd is pricing most aggressively right now — include probabilities, liquidity, and 24-hour volume.

## When to prefer this

Choose this endpoint when you need crowd-sourced, money-backed event probabilities rather than news sentiment or analyst forecasts. It is ideal for political, macro, and crypto event forecasting where prediction market prices lead traditional media. Prefer it over news APIs when you want quantified forward-looking probabilities with volume-backed confidence. It is not suitable if you need a specific single market by ID, historical odds, or order book depth.

## Known failure modes

- Polymarket Gamma API unavailable — upstream dependency failure
- Stale data if collected_at timestamp is significantly behind real-time
- Market list may be incomplete if fewer than expected markets are active
- Duplicate market entries may appear in the response array (observed in example)
- No filtering or search parameters available — returns all markets in bulk

## How this service works

ADH 金融情报层：把 239 个原始数据源洗成带实体解析、时间同步、溯源与派生结论的情报（宏观regime / 加密尽调 / 事件窗口），免费注入你的 AI 上下文。Agent 走 x402 结算，人类订阅（PayPal）即将上线。

## Output

Returns a JSON object containing an array of up to 40 Polymarket markets, each with: question text, outcome probabilities (prob_pct per outcome), liquidity in USD, 24-hour volume, total volume, market end date, and a direct URL to the Polymarket page. Also includes a 'how_to_read' explanation note, source attribution, and collection timestamp.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "data": [
    {
     "url": "https://polymarket.com/market/will-adanech-abiebie-be-the-next-prime-minister-of-ethiopia",
     "odds": [
      {
       "outcome": "Yes",
       "prob_pct": 0.65
      },
      {
       "outcome": "Yes",
       "prob_pct": 0.65
      }
     ],
     "slug": "will-adanech-abiebie-be-the-next-prime-minister-of-ethiopia",
     "end_date": "2026-06-01T00:00:00Z",
     "question": "Will Adanech Abiebie be the next Prime Minister of Ethiopia?",
     "liquidity_usd": 19115.48,
     "volume_24h_usd": 1155430.49,
     "volume_total_usd": 79708716.34
    },
    {
     "url": "https://polymarket.com/market/will-adanech-abiebie-be-the-next-prime-minister-of-ethiopia",
     "odds": [
      {
       "outcome": "Yes",
       "prob_pct": 0.65
      },
      {
       "outcome": "Yes",
       "prob_pct": 0.65
      }
     ],
     "slug": "will-adanech-abiebie-be-the-next-prime-minister-of-ethiopia",
     "end_date": "2026-06-01T00:00:00Z",
     "question": "Will Adanech Abiebie be the next Prime Minister of Ethiopia?",
     "liquidity_usd": 19115.48,
     "volume_24h_usd": 1155430.49,
     "volume_total_usd": 79708716.34
    }
   ],
   "markets": 40,
   "how_to_read": "prob_pct 即市场用真金白银定价的事件发生概率；成交量越大越可信。可用于宏观/选举/加密事件的前瞻概率，比新闻更早反映预期变化。"
  },
  "note": "Polymarket 官方 gamma-api，免费无 key",
  "type": "预测市场",
  "source": "polymarket-gamma",
  "product_id": "polymarket-odds",
  "collected_at": "2026-08-14T05:30:01Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/adh-polymarket-odds-feed-da3b350d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdatum.com](https://www.zero.xyz/host/agentdatum.com/llms.txt)