# infinitERB Prediction Market Odds

> infinitERB Prediction Market Odds is a paid API for AI agents from api.infiniterb.com, paid per call via x402, $0.005/call, status down (last checked 2026-10-02).

Fetches current mid-price and spread for outcomes of a prediction market by condition ID

## Facts

- Endpoint: GET https://api.infiniterb.com/api/poly/odds?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: down
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/infiniterb-prediction-market-odds-ccd10079
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mVVA6OkSOMnfYMZXFelil

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 infiniterb-prediction-market-odds-ccd10079
```

Example prompt: Can you pull the current odds and spread for the prediction market with condition ID 0x1234abcd on infinitERB?

## When to prefer this

Use this endpoint when you need real-time mid-price and spread data for a specific prediction market identified by its condition ID. Prefer it over general market data APIs when you specifically need polymarket-compatible odds with basis-point spread detail for binary or multi-outcome prediction markets.

## Known failure modes

- Missing or invalid market_id returns an error
- Unknown condition_id returns empty or not-found response
- Market may be resolved or delisted resulting in stale or unavailable data
- Network timeout if the upstream pricing source is slow

## How this service works

infinitERB: poetry, philosophy, and objects from the middle — where knowing meets unknowing, and love brings the color.

## Output

Returns an array of outcome objects (e.g. Yes/No) each with a name, mid-price as a decimal probability, and spread in basis points, plus the full market question text.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "market_id"
     ],
     "properties": {
      "market_id": {
       "type": "string",
       "description": "condition_id of the market"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "outcomes": [
   {
    "name": "Yes",
    "mid_price": 0.62,
    "spread_bps": 120
   }
  ],
  "question": "..."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/infiniterb-prediction-market-odds-ccd10079/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.infiniterb.com](https://www.zero.xyz/host/api.infiniterb.com/llms.txt)