# RacingPulse Speed Ratings

> RacingPulse Speed Ratings is a paid API for AI agents from racingpulse.vercel.app, paid per call via x402, $0.07/call, status unknown (last checked 2026-09-13).

Returns RPR, Timeform, and going-adjusted performance ratings for horses in horse racing

## Facts

- Endpoint: GET https://racingpulse.vercel.app/api/ratings
- Price: $0.07/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/racingpulse-speed-ratings-f4595342
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aPgz_SbAl4LeNT0Nfy5il

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 racingpulse-speed-ratings-f4595342
```

Example prompt: What are the RPR, Timeform, and going-adjusted speed ratings for all horses running in the 3:30 at Newmarket today?

## When to prefer this

Use this endpoint when you need standardized, multi-source speed ratings (RPR, Timeform, going-adjusted) for horses, especially when making form comparisons or handicapping decisions. Prefer over generic form guides when numerical performance ratings are the primary requirement.

## Known failure modes

- Race or horse not found — returns empty or 404-style error
- Going condition not available for adjustment — rating returned without going adjustment
- Invalid race/course identifier — returns error
- Payment not processed — returns 402 Payment Required
- Service temporarily unavailable — returns 503

## How this service works

Speed ratings — RPR, Timeform and going-adjusted performance figures. For horse-racing handicapping agents.

## Output

Returns a set of performance ratings per horse including RPR (Racing Post Rating), Timeform rating, and going-adjusted ratings that account for current ground conditions, allowing comparison of horse form on a normalized basis.

## Example request

```json
{
 "horse": "Frankel"
}
```

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "horse": {
       "type": "string",
       "description": "horse name (required)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "errors": {
     "type": "object",
     "description": "Documented error responses, keyed by HTTP status code",
     "additionalProperties": {
      "type": "object",
      "required": [
       "description"
      ],
      "properties": {
       "example": {
        "type": "object"
       },
       "description": {
        "type": "string"
       }
      }
     }
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "rpr": "121",
  "horse": "Inspiral",
  "rating_history": [
   {
    "date": "2026-05-01",
    "going": "Good",
    "track": "Newmarket",
    "rating": "121"
   }
  ],
  "recommendation": "Improves on fast ground; avoid in testing conditions",
  "official_rating": "119",
  "timeform_rating": "122p",
  "class_assessment": "Group 1 standard",
  "distance_performance": [
   {
    "runs": 5,
    "distance": "1m",
    "avg_rating": "119"
   }
  ],
  "going_adjusted_ratings": {
   "firm": "120",
   "good": "121",
   "soft": "115",
   "heavy": "108"
  },
  "performance_against_par": "+4 above class par"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/racingpulse-speed-ratings-f4595342/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from racingpulse.vercel.app](https://www.zero.xyz/host/racingpulse.vercel.app/llms.txt)