# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from token-intel.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Fetches live orderbook data, implied Yes/No probabilities, volume, and whale sentiment for Polymarket prediction markets on macro, crypto, and AI events.

## Facts

- Endpoint: GET https://token-intel.agentdiet.dev/v1/polymarket-prediction-stream?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: token-intel.agentdiet.dev
- Website: https://token-intel.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/token-intel-agentdiet-dev-polymarket-live-prediction-market-odds-e5027cf6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MrZMbv_wCy0X5sm4seeSe

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 token-intel-agentdiet-dev-polymarket-live-prediction-market-odds-e5027cf6
```

Example prompt: What are the live Polymarket odds and implied Yes/No probabilities for 'Will the Fed cut interest rates in 2025?' — include orderbook volume and whale sentiment.

## When to prefer this

Use this endpoint when you need real-time crowd-sourced probability estimates for binary macro, crypto, or AI events — especially when you want orderbook depth and whale positioning rather than just a simple price quote. It is ideal for agents conducting market research, building dashboards, or making decisions that depend on the market's consensus probability for a future event.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null results
- Ambiguous topic string matches multiple markets — may return multiple results requiring disambiguation
- Polymarket API unavailability or rate limiting upstream — endpoint may return error or stale data
- Very new or niche markets may have thin orderbooks and unreliable implied probabilities
- Payment required error (HTTP 402) if x402 USDC payment 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://token-intel.agentdiet.dev/v1/polymarket-prediction-stream)

## Output

Returns live Polymarket prediction market data including the current implied Yes and No probabilities (as percentages), orderbook depth, cumulative trading volume, and whale sentiment signals for the queried 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/token-intel-agentdiet-dev-polymarket-live-prediction-market-odds-e5027cf6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from token-intel.agentdiet.dev](https://www.zero.xyz/host/token-intel.agentdiet.dev/llms.txt)