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

## Facts

- Endpoint: GET https://hn-pulse.agentdiet.dev/v1/fomc-rate-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-01e139a9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LDAl_b2TdfERbyjskixQ6

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-01e139a9
```

Example prompt: What are the current live Polymarket odds and implied Yes/No probability for a Fed rate cut at the next FOMC meeting? Include volume and whale sentiment.

## When to prefer this

Choose this endpoint when you need real-time crowd-wisdom probabilities from Polymarket's prediction markets for macro events (FOMC, elections, recession), crypto milestones (ETF approvals, protocol upgrades), or AI policy events. Prefer this over news sentiment APIs when you want market-implied probabilities backed by real money and volume, rather than media tone. Best for agents that need a quantitative probability estimate from decentralized prediction markets rather than qualitative analyst opinion.

## Known failure modes

- Topic keyword does not match any active Polymarket market — returns empty or null results
- Polymarket API unavailable or rate-limited — upstream data fetch failure
- Vague or ambiguous topic string returns unrelated market data
- Payment not completed via x402 — returns HTTP 402 Payment Required
- Market has resolved or closed — returns historical rather than live data

## 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/fomc-rate-odds)

## Output

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

## 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-01e139a9/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)