# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from prompt-guard.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://prompt-guard.agentdiet.dev/v1/polymarket-live-odds-feed?utm_source=zero.xyz
- Price: $0.015/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: prompt-guard.agentdiet.dev
- Website: https://prompt-guard.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/prompt-guard-agentdiet-dev-polymarket-live-prediction-market-odds-b1682ac0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_72LjH2Xrg-yZu1bloshFT

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 prompt-guard-agentdiet-dev-polymarket-live-prediction-market-odds-b1682ac0
```

Example prompt: What are the live Polymarket odds and implied Yes/No probabilities right now for Bitcoin reaching $100K this year, including trading volume and whale sentiment?

## When to prefer this

Choose this endpoint when you need real-time crowd-wisdom probabilities from Polymarket specifically — including orderbook depth, volume, and whale-level sentiment — for crypto, macro, or AI events. Prefer this over general news or sentiment APIs when you want market-implied probabilities rather than social sentiment or editorial opinion.

## Known failure modes

- Topic keyword matches no active Polymarket market — returns empty or null result
- Ambiguous topic string matches multiple markets — may return the wrong market's data
- Polymarket API downtime or rate limiting causes delayed or failed data fetch
- Stale orderbook data if market liquidity is very low
- HTTP 402 payment required if micropayment is not properly attached

## 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://prompt-guard.agentdiet.dev/v1/polymarket-live-odds-feed)

## Output

Returns a structured response containing live Polymarket orderbook data for the queried topic, including implied Yes probability, implied No probability, current trading volume, and whale sentiment indicators for the matched prediction market event.

## 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/prompt-guard-agentdiet-dev-polymarket-live-prediction-market-odds-b1682ac0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from prompt-guard.agentdiet.dev](https://www.zero.xyz/host/prompt-guard.agentdiet.dev/llms.txt)