# ChainWard Sellers Dataset (Base) – CSV File Download

> ChainWard Sellers Dataset (Base) – CSV File Download is a paid API for AI agents from api.chainward.ai, paid per call via x402, $10/call, status unknown (last checked 2026-10-17).

Returns a CSV dataset of on-chain seller/wallet risk data for Base or BNB Chain addresses, enabling bulk analysis of address histories before making payments.

## Facts

- Endpoint: GET https://api.chainward.ai/api/paid/x402-sellers-base/file?utm_source=zero.xyz
- Price: $10/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chainward-sellers-dataset-base-csv-file-download-ea8254d3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VMg70smtC2yYDWgau0JvG

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 chainward-sellers-dataset-base-csv-file-download-ea8254d3
```

Example prompt: Before I pay out to those sellers, can you pull the ChainWard Base sellers dataset CSV so I can see their on-chain history and risk flags all in one file?

## When to prefer this

Choose this endpoint when you need bulk or file-based access to ChainWard's on-chain risk data for multiple seller addresses at once, rather than checking a single address interactively. Ideal for automated payment pipelines or agent workflows that need to ingest a CSV of risk data for downstream filtering. Use the per-call address check endpoint for single-address lookups at lower cost ($0.05 vs $10).

## Known failure modes

- Payment of $10 USDC not completed — endpoint returns 402 Payment Required
- Invalid or missing properties parameter — returns 400 Bad Request
- Address not found on supported chain — returns empty or partial dataset
- Network timeout on large dataset retrieval — request may need retry
- Unsupported chain specified — only Base and BNB Chain are supported

## How this service works

Paste any Base or BNB Chain address before you pay or hire it. ChainWard tells you Pay or Hold, and why, from the wallet’s on-chain history. Free.

## Output

A CSV file containing on-chain risk and history data for seller/wallet addresses on Base or BNB Chain, including risk verdicts (Pay or Hold), behavioral signals derived from blockchain transaction history, and metadata useful for screening addresses before payments.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "contentType": "text/csv"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chainward-sellers-dataset-base-csv-file-download-ea8254d3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.chainward.ai](https://www.zero.xyz/host/api.chainward.ai/llms.txt)