# Boring API – Table Diff (Price List Comparison)

> Boring API – Table Diff (Price List Comparison) is a paid API for AI agents from api.relaex-engineers.de, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-10).

Compares two versions of a tabular file (CSV, XLSX, or PDF) and returns a structured diff highlighting changes between them.

## Facts

- Endpoint: POST https://api.relaex-engineers.de/v1/tables/diff?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/boring-api-table-diff-price-list-comparison-9d5e57f1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Rd3LSkQNf5udc-8l_TSh6

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 boring-api-table-diff-price-list-comparison-9d5e57f1 -d '<json body>'
```

Example prompt: Compare these two supplier price lists and tell me what changed — the old version is at https://example.com/prices-jan.xlsx and the new one is at https://example.com/prices-feb.xlsx.

## When to prefer this

Choose this endpoint when you need a deterministic, structured diff between two versions of a tabular data file (CSV, XLSX, or PDF), especially for supplier price list comparison or product catalog change detection. It is purpose-built for procurement and e-commerce data workflows and returns machine-readable diffs with a confidence score, making it suitable for automated pipelines. Prefer it over generic document comparison tools when you need row-level change detection on structured tabular data rather than text-level diffs.

## Known failure modes

- Unreachable file URLs return an error status — both old_file_url and new_file_url must be publicly accessible
- Unsupported file formats (e.g. DOCX, images) will fail or return low confidence
- Heavily formatted or multi-header PDF tables may produce low-confidence results
- Malformed options JSON string causes a schema validation error
- Very large files may time out or exceed processing limits

## How this service works

Deterministic analysis APIs and MCP tools: supplier
price list comparison, PDF table extraction, product feed validation, product data mapping.

## Output

Returns a JSON object containing a 'result' field with the structured diff (added, removed, and modified rows/cells), a 'status' field indicating success or failure, and a 'confidence' object with a level (e.g. 'high') indicating how reliably the tables were parsed and compared.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "options": {
   "type": "string",
   "description": "Optional options as a JSON string; schema under /v1/schemas/"
  },
  "new_file_url": {
   "type": "string",
   "description": "Public URL of the new version"
  },
  "old_file_url": {
   "type": "string",
   "description": "Public URL of the old version (CSV, XLSX or PDF)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {},
  "status": "success",
  "confidence": {
   "level": "high"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/boring-api-table-diff-price-list-comparison-9d5e57f1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.relaex-engineers.de](https://www.zero.xyz/host/api.relaex-engineers.de/llms.txt)