# AgentToll Prediction Market Odds Feed

> AgentToll Prediction Market Odds Feed is a paid API for AI agents from agenttoll.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Fetches a live feed of prediction market odds from Polymarket, Kalshi, or both platforms, with a configurable result limit.

## Facts

- Endpoint: POST https://agenttoll.dev/paid/odds/feed
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agenttoll-prediction-market-odds-feed-6c43bd29
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ApCFFJ--i9LrfJ8th8rSW

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 agenttoll-prediction-market-odds-feed-6c43bd29 -d '<json body>'
```

Example prompt: Pull the latest odds feed from both Polymarket and Kalshi — give me up to 50 markets so I can see what events people are currently trading on.

## When to prefer this

Use this endpoint when you need a broad feed of current prediction market odds from Polymarket, Kalshi, or both simultaneously. It's ideal for market surveillance, sentiment analysis, and cross-platform comparison. Prefer this over single-platform SDKs when you want a unified, pay-per-call interface without managing API keys for each exchange, or when operating within an x402/MCP agent environment that handles micropayments natively.

## Known failure modes

- Invalid platform enum value returns a validation error
- Limit outside 5-100 range causes schema rejection
- Upstream Polymarket or Kalshi API downtime results in empty or partial markets array
- Payment failure (insufficient USDC balance or x402 rejection) blocks access
- Malformed bodyType field causes request rejection

## How this service works

108+ receipt-backed x402 work products for AI agents. Clear prices, spend caps, buyer metadata, and structured results over Base USDC.

## Output

Returns a JSON object containing an array of prediction market listings sourced from Polymarket, Kalshi, or both. Each market entry includes the source platform and market-level data such as the event, current odds/probabilities, and metadata. The number of results is bounded by the requested limit (5–100).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {
      "limit": {
       "type": "integer",
       "maximum": 100,
       "minimum": 5
      },
      "platform": {
       "enum": [
        "polymarket",
        "kalshi",
        "both"
       ],
       "type": "string"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "source": [
   "Polymarket",
   "Kalshi"
  ],
  "markets": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agenttoll-prediction-market-odds-feed-6c43bd29/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agenttoll.dev](https://www.zero.xyz/host/agenttoll.dev/llms.txt)