# NFT Insight (Scam Check, Owners)

> NFT Insight (Scam Check, Owners) is a paid API for AI agents from x402.professorsausages.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns the NFT portfolio for a wallet address on a given chain, including the first 100 NFTs, spam/scam flags, and a rollup summary, cached up to 24 hours.

## Facts

- Endpoint: GET https://x402.professorsausages.com/nft/:chain/wallet/:address
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nft-insight-scam-check-owners-e16b0c9a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wdwMI6VdDpWs4eaQA5q90

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 nft-insight-scam-check-owners-e16b0c9a
```

Example prompt: Can you pull up the NFT portfolio for the Ethereum wallet 0xABC123... and flag any spam or scam NFTs in it?

## When to prefer this

Use this endpoint when you need to quickly audit a wallet's NFT holdings for scam or spam tokens on a supported chain, or when you want a portfolio-level rollup without building your own NFT indexing. Especially useful for fraud detection, wallet due diligence, or displaying a user's NFT collection with spam filtering already applied.

## Known failure modes

- Invalid or malformed wallet address returns an error
- Unsupported chain identifier returns an error
- Wallet with no NFTs returns an empty list
- Cache may serve data up to 24 hours old, so very recent transfers may not appear
- Rate limiting or payment failure ($0.01 USDC) may block the request

## How this service works

Wallet NFT portfolio (first 100 items + honest truncation, spam flags, rollup) — cached ≤24h

## Output

A list of up to 100 NFTs held by the wallet on the specified chain, each with spam/scam flags, plus an honest truncation notice if the wallet holds more than 100, and a rollup summary of the portfolio. Response is cached for up to 24 hours.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nft-insight-scam-check-owners-e16b0c9a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.professorsausages.com](https://www.zero.xyz/host/x402.professorsausages.com/llms.txt)