# 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 Polymarket prediction market orderbook data, implied Yes/No probabilities, volume, and whale sentiment for any macro, crypto, or AI event topic.

## Facts

- Endpoint: POST https://hn-pulse.agentdiet.dev/v1/polymarket-live-odds-feed?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-4c21a329
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UnigH37sqdfz_XNknFK7j

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-4c21a329 -d '<json body>'
```

Example prompt: What are the live Polymarket odds and implied probability that the Fed cuts interest rates before the end of 2025 — and is there any notable whale sentiment skewing the market?

## When to prefer this

Choose this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, political, or AI events, particularly when you want market-implied odds rather than analyst forecasts. It is ideal for agents that need to ground decisions or reports in live prediction market data from Polymarket, including volume and large-trader (whale) sentiment signals.

## Known failure modes

- No matching Polymarket market found for the given topic — returns empty or null results
- Polymarket API unavailability causes stale or missing data
- Ambiguous topic keyword matches multiple markets, returning mixed or unexpected results
- Payment required (HTTP 402) if x402 micropayment header is missing or invalid
- Rate limiting if too many requests are made in a short window

## 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/polymarket-live-odds-feed)

## Output

Returns live Polymarket orderbook data including implied Yes and No probabilities (as percentages or decimals), current trading volume, and whale sentiment indicators for the queried prediction market 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-4c21a329/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)