# Relaystation Dataset Profiler

> Relaystation Dataset Profiler is a paid API for AI agents from api.relaystation.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-16).

Instantly profiles a dataset returning column types, null counts, cardinality, and min/max/mean statistics before you commit to full processing.

## Facts

- Endpoint: POST https://api.relaystation.ai/v1/data/profile
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/relaystation-dataset-profiler-beb8887b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FrLnvinorDrUSqNlYnJHu

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 relaystation-dataset-profiler-beb8887b -d '<json body>'
```

Example prompt: Before I run my ETL pipeline, can you profile this CSV and tell me the column types, null counts, cardinality, and min/max/mean for each column?

## When to prefer this

Choose this endpoint when you need a fast, cheap statistical snapshot of a tabular dataset before committing to expensive processing, transformation, or ingestion steps. Ideal for data engineers and agents running pre-flight checks on CSV or structured data files. At $0.0002/MB it is extremely cost-efficient for lightweight profiling compared to running a full ETL pipeline or a heavier analytics service.

## Known failure modes

- Malformed or unreadable file format returns a parse error
- Empty dataset returns minimal or empty profile
- Oversized payload may exceed request limits
- Non-tabular data (e.g. raw binary) returns an unsupported format error
- Network timeout on very large datasets

## How this service works

$0.0002/MB. Instant dataset profile — column types, null counts, cardinality, min/max/mean — before you commit to processing. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

## Output

A structured profile of the dataset including per-column data types, null counts, cardinality (unique value counts), and summary statistics (min, max, mean) for numeric columns. Priced at $0.0002/MB with a $0.01 minimum via x402 micropayment; any overage is auto-credited.

## 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": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/relaystation-dataset-profiler-beb8887b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.relaystation.ai](https://www.zero.xyz/host/api.relaystation.ai/llms.txt)