# Delx Commerce — Fractional Odds to Probability Converter

> Delx Commerce — Fractional Odds to Probability Converter is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Converts fractional betting odds (numerator/denominator) into implied probability and decimal odds

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/odds-fractional-to-prob?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-commerce-fractional-odds-to-probability-converter-732e25f8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_z4-q1WsgG2YB0EFzLTVNl

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 delx-commerce-fractional-odds-to-probability-converter-732e25f8 -d '<json body>'
```

Example prompt: What's the implied probability and decimal odds for fractional odds of 5/2?

## When to prefer this

Use this endpoint when you need a quick, precise, pay-per-call conversion of fractional odds (as used in UK/Irish horse racing and sports betting) to implied probability and decimal odds, without setting up any account or API key. Ideal for agents that need on-demand odds math in betting analysis or prediction market workflows.

## Known failure modes

- Missing or invalid numerator/denominator integers returns an error
- Denominator of zero causes division-by-zero error
- Non-integer inputs may be rejected or produce unexpected results
- Payment failure via x402 prevents the response from being returned

## How this service works

Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.

## Output

Returns the implied probability as a decimal (e.g. 0.2857 for 5/2 odds), the corresponding decimal odds value (e.g. 3.5), and echoes back the input numerator and denominator along with a schema identifier string.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "den": {
   "type": "integer",
   "description": "Input field: den."
  },
  "num": {
   "type": "integer",
   "description": "Input field: num."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "den": 2,
  "num": 5,
  "prob": 0.2857142857142857,
  "schema": "delx/util-odds-fractional-to-prob/v1",
  "decimal_odds": 3.5
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-fractional-odds-to-probability-converter-732e25f8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from commerce.delx.ai](https://www.zero.xyz/host/commerce.delx.ai/llms.txt)