# ScamSniffer Blacklist Lookup

> ScamSniffer Blacklist Lookup is a paid API for AI agents from api.fadeandco.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-30).

Checks whether an Ethereum wallet address or domain name appears on the public ScamSniffer community scam/phishing blacklist, returning a listed verdict and current list size.

## Facts

- Endpoint: GET https://api.fadeandco.workers.dev/api/agent-intel/known-scams-blacklist-db?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scamsniffer-blacklist-lookup-7b65979a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4sFGWno9YNik9CsZdZnS8

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 scamsniffer-blacklist-lookup-7b65979a
```

Example prompt: Can you check if the Ethereum address 0x101ce0cedd142f199c9ef61739ae59b6611a0fc0 is on the ScamSniffer blacklist — I want to know if it's been flagged as a scammer before I interact with it.

## When to prefer this

Choose this endpoint when you need a fast, free-tier ($0.001/call) community-sourced sanity check on a crypto wallet address or phishing domain before a user interacts with it. It is best used as a first-pass filter in DeFi safety workflows, wallet pre-screening, or phishing link detection. It is not a substitute for real-time threat intelligence or professional blockchain analytics — use it as one signal among many.

## Known failure modes

- Missing or malformed 'query' parameter returns an error response
- Invalid Ethereum address format may not be recognized
- Domain queries without a valid TLD may fail or return unexpected results
- Blacklist is community-maintained and not real-time — recently added scams may not yet appear
- False negatives are expected: legitimate scams may not yet be listed

## How this service works

Is this address or domain on the ScamSniffer community blacklist (public GitHub scam-database: wallet addresses, or phishing domains with their linked addresses)? Returns listed yes or no and the list size. A 'no' does not prove safety, and the list is not updated in real time.

## Output

Returns a JSON object with: the query (address or domain), a verdict string ('ON_BLACKLIST' or 'NOT_ON_BLACKLIST'), a boolean 'listed' flag, the type ('address' or 'domain'), the source GitHub URL of the blacklist, the current list size (number of entries), the timestamp of the check, and a note clarifying that NOT_ON_BLACKLIST is not proof of safety.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "query"
     ],
     "properties": {
      "query": {
       "type": "string",
       "description": "An Ethereum address (0x...) or a domain name such as degenalgo.art"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "Public ScamSniffer community list only, updated by its maintainers over time. NOT_ON_BLACKLIST is not proof of safety.",
  "type": "address",
  "query": "0x101ce0cedd142f199c9ef61739ae59b6611a0fc0",
  "listed": true,
  "source": "https://raw.githubusercontent.com/scamsniffer/scam-database/main/blacklist/address.json",
  "verdict": "ON_BLACKLIST",
  "listSize": 2530,
  "checkedAt": "2026-10-23T09:35:18.193Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scamsniffer-blacklist-lookup-7b65979a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.fadeandco.workers.dev](https://www.zero.xyz/host/api.fadeandco.workers.dev/llms.txt)