# TableProof – CSV Data Import Verification by Exact IDs

> TableProof – CSV Data Import Verification by Exact IDs is a paid API for AI agents from tableproof-data.mitchellwhite.chatgpt.site, paid per call via x402, $39/call, status unknown (last checked 2026-10-11).

Compares original and imported CSV exports by exact record IDs to identify missing, added, and changed records with a bounded preview.

## Facts

- Endpoint: GET https://tableproof-data.mitchellwhite.chatgpt.site/store/retry-contracts.zip?utm_source=zero.xyz
- Price: $39/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tableproof-csv-data-import-verification-by-exact-ids-e91f17b1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IMwNyBnmhkpOzC-94mKG5

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 tableproof-csv-data-import-verification-by-exact-ids-e91f17b1
```

Example prompt: Can you verify my data import by comparing my original CSV export and the imported CSV export — I need to find any missing, added, or changed records matched up by their IDs.

## When to prefer this

Choose this endpoint when you need to verify the fidelity of a CSV-based data import or migration by comparing records at the ID level — especially when you want a precise accounting of missing, added, and changed rows rather than a fuzzy or statistical comparison. It is particularly well-suited for post-ETL audits, vendor data roundtrips, or CRM/database migrations where you have both a pre- and post-import CSV export available.

## Known failure modes

- CSV files lack a consistent ID column, making exact-match comparison impossible
- Malformed or non-UTF-8 CSV encoding causes parse errors
- CSVs with mismatched column schemas may produce unreliable change detection
- Large files may be truncated due to bounded preview limits
- Payment failure ($39 USDC) results in 402 response with no data returned

## How this service works

Compare original and imported CSV exports by exact IDs. Find missing, added and changed records with a free bounded preview.

## Output

A binary (ZIP) report containing a bounded preview diff of the two CSVs, listing records that are missing from the import, records unexpectedly added, and records whose field values changed — all matched by exact record ID.

## Response schema (JSON Schema)

```json
{
 "type": "string",
 "format": "binary"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tableproof-csv-data-import-verification-by-exact-ids-e91f17b1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tableproof-data.mitchellwhite.chatgpt.site](https://www.zero.xyz/host/tableproof-data.mitchellwhite.chatgpt.site/llms.txt)