# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from onchain-risk.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-28).

Fetches live Polymarket prediction market orderbooks, implied Yes/No probabilities, volume, and whale sentiment for a given macro, crypto, or AI event topic

## Facts

- Endpoint: POST https://onchain-risk.agentdiet.dev/v1/polymarket-live-odds-feed?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Provider: onchain-risk.agentdiet.dev
- Website: https://onchain-risk.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/onchain-risk-agentdiet-dev-polymarket-live-prediction-market-odds-87679105
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ov8JVCbcLQb2oPAgcDjh2

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 onchain-risk-agentdiet-dev-polymarket-live-prediction-market-odds-87679105 -d '<json body>'
```

Example prompt: What are the current Polymarket odds and implied Yes/No probabilities for a US recession happening in 2025, including whale sentiment and trading volume?

## When to prefer this

Use this endpoint when you need real-time, crowd-sourced probability estimates for macro, crypto, or AI events from Polymarket's prediction market — especially when you want implied Yes/No probabilities, orderbook depth, volume, and whale sentiment in a single call. Prefer this over general news or sentiment APIs when you want market-priced consensus rather than qualitative opinion. Best suited for agents doing real-time risk assessment, trading research, or event-driven decision support.

## Known failure modes

- Topic string too vague or not matching any active Polymarket market — returns empty or no-match result
- Polymarket API or data feed temporarily unavailable — upstream timeout or error
- Payment not processed (HTTP 402) — endpoint requires $0.01 USDC per call via x402
- Rate limiting or quota exceeded — repeated rapid calls may be throttled
- Market no longer active or resolved — odds may not be available for expired markets

## 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://onchain-risk.agentdiet.dev/v1/polymarket-live-odds-feed)

## Output

Returns live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities, trading volume, and whale sentiment indicators — giving a real-time crowd-sourced probability estimate for the event in question.

## 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/onchain-risk-agentdiet-dev-polymarket-live-prediction-market-odds-87679105/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from onchain-risk.agentdiet.dev](https://www.zero.xyz/host/onchain-risk.agentdiet.dev/llms.txt)