# 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, $0.015/call, status unknown (last checked 2026-10-21).

Fetches live Polymarket orderbook data, implied Yes/No probabilities, trading volume, and whale sentiment for a given prediction market topic or event keyword.

## Facts

- Endpoint: GET https://hn-pulse.agentdiet.dev/v1/election-odds?utm_source=zero.xyz
- Price: $0.015/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- 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-8e756af5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8wfbUzCQjgm8baip5qrqI

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-8e756af5
```

Example prompt: What are the live Polymarket odds and implied yes/no probabilities right now for Bitcoin reaching $100K by end of year — including volume and any whale sentiment signals?

## When to prefer this

Use this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, political, or AI events from Polymarket's liquid prediction markets, especially when you want implied odds, volume context, and whale sentiment rather than news-based analysis. Prefer this over general news or sentiment APIs when you need quantified market-consensus probabilities with financial skin-in-the-game.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null result
- Payment required (HTTP 402) if x402 USDC payment header is missing or insufficient
- Stale data if Polymarket API is temporarily unavailable or rate-limited
- Ambiguous topic keyword matches multiple markets, returning aggregated or partial results
- Network timeout if the upstream Polymarket data source is slow

## 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/election-odds)

## Output

Returns live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities, current trading volume, and whale sentiment signals for macro, crypto, political, or AI-related prediction market events.

## 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-8e756af5/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)