# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from hn-pulse.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-23).

Fetches live Yes/No probabilities, orderbook data, volume, and whale sentiment from Polymarket for any macro, crypto, or AI prediction market topic.

## Facts

- Endpoint: POST https://hn-pulse.agentdiet.dev/v1/prediction-markets?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: hn-pulse.agentdiet.dev
- Website: https://hn-pulse.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/hn-pulse-agentdiet-dev-polymarket-live-prediction-market-odds-implied-a3a1ab87
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GAyOlm_Mxa2nDKgEGoRYZ

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 hn-pulse-agentdiet-dev-polymarket-live-prediction-market-odds-implied-a3a1ab87 -d '<json body>'
```

Example prompt: What are the live Polymarket odds right now on whether the Fed will cut rates this quarter — give me the yes/no probabilities, volume, and any whale sentiment signals.

## When to prefer this

Use this endpoint when you need real-time crowd-sourced probability estimates from Polymarket's prediction market orderbooks, especially for macro, crypto, AI, or political events. Prefer this over news sentiment APIs when you want market-implied probabilities backed by real money, or when you need whale accumulation signals alongside raw odds.

## Known failure modes

- No matching Polymarket market found for the given topic keyword
- Topic string too vague to resolve to a specific market
- Polymarket data feed temporarily unavailable or stale
- Payment of $0.01 USDC via x402 not completed, resulting in 402 response
- Rate limiting or repeated identical queries without idempotency key causing duplicate charges

## How this service works

Fetches live Polymarket prediction market orderbooks, implied Yes/No probabilities, volume, and whale sentiment for macro/crypto/AI events. (Live x402 v2, IETF MPP & MCP endpoint at https://hn-pulse.agentdiet.dev/v1/prediction-markets)

## Output

Returns live orderbook data, implied Yes/No probabilities as percentages, total trading volume, and whale sentiment signals for matching Polymarket prediction markets related to the queried topic or event keyword.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "topic"
 ],
 "properties": {
  "topic": {
   "type": "string",
   "minLength": 1,
   "description": "Prediction market topic, event keyword, or question to query live Polymarket odds"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hn-pulse-agentdiet-dev-polymarket-live-prediction-market-odds-implied-a3a1ab87/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from hn-pulse.agentdiet.dev](https://www.zero.xyz/host/hn-pulse.agentdiet.dev/llms.txt)