# Polymarket Live Prediction Market Odds & Implied Probability Feed

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

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: POST https://json-repair.agentdiet.dev/v1/polymarket-alpha?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Provider: json-repair.agentdiet.dev
- Website: https://json-repair.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/json-repair-agentdiet-dev-polymarket-live-prediction-market-odds-21833061
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hGSdSg0_KfznDb5rJI1kP

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 json-repair-agentdiet-dev-polymarket-live-prediction-market-odds-21833061 -d '<json body>'
```

Example prompt: What are the live Polymarket odds and implied Yes/No probabilities right now for Bitcoin ETF approval — including trading volume and whale sentiment?

## When to prefer this

Choose this endpoint when you need real-time, crowd-sourced probability estimates for macro, crypto, AI, or geopolitical events from Polymarket's live orderbook — especially when you want implied Yes/No odds, volume, and whale sentiment in a single structured call. Prefer this over generic news or sentiment APIs when you need market-priced probabilities rather than editorial opinion.

## Known failure modes

- Topic too vague or ambiguous — no matching Polymarket market found
- Network or upstream Polymarket API unavailability causing stale or missing data
- Payment failure (HTTP 402) if x402 USDC payment is not properly handled
- Rate limiting or quota exceeded for the endpoint
- Malformed topic input resulting in an empty or error response

## 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://json-repair.agentdiet.dev/v1/polymarket-alpha)

## Output

Returns live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities, current trading volume, and whale sentiment indicators for the matching 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/json-repair-agentdiet-dev-polymarket-live-prediction-market-odds-21833061/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from json-repair.agentdiet.dev](https://www.zero.xyz/host/json-repair.agentdiet.dev/llms.txt)