# SpendTheBits Address Risk Screening

> SpendTheBits Address Risk Screening is a paid API for AI agents from x402.spendthebits.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-12).

Screens a blockchain address for sanctions, scam listings, and known token contract status, returning an ok/warn/block verdict.

## Facts

- Endpoint: GET https://x402.spendthebits.com/@superappstb/address-risk/?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/spendthebits-address-risk-screening-b7a3e8b8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RmUErus5WYAv3M_bAdYjq

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 spendthebits-address-risk-screening-b7a3e8b8
```

Example prompt: Before I send funds, can you screen the Ethereum address 0xAbC123...def456 on mainnet to check if it's sanctioned, flagged as a scam, or a known token contract?

## When to prefer this

Use this endpoint when you need a real-time, per-address sanctions and scam verdict gating a financial transaction — especially within the SpendTheBits wallet ecosystem. Prefer this over generic risk APIs when you need multi-chain support (EVM, Solana, TRON, XRPL, Bitcoin) in a single call, or when you also need to verify whether an address is a recognized token contract. It is the same screen used natively by the STB wallet before every send.

## Known failure modes

- Missing required address parameter returns an error
- Address shorter than 20 or longer than 96 characters is rejected by schema validation
- Unknown or malformed address format may return a non-evm family with limited screening data
- Testnet addresses screened on mainnet (or vice versa) may return no results or misleading verdicts
- Network outage or upstream sanctions database unavailability may cause timeouts
- Payment of $0.003 USDC via x402 required; unpaid requests are rejected with 402

## How this service works

Sanctions/scam screening verdict for one address (?address=, optional ?network=mainnet|testnet) plus whether it is a verified token contract STB recognises. The same screen that gates every send in the STB wallet.

## Output

Returns a JSON object with: the queried address and network, address family (evm/other), a verdict field (ok, warn, or block), a screening object with a listed boolean plus source and category if flagged, a token_contract object indicating if the address is a known token with its symbol and chain, an evidence array with supporting details, attribution for data sources, and an as_of timestamp.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "maxLength": 96,
       "minLength": 20,
       "description": "Address to screen: an EVM 0x address, or another chain's address (Solana, TRON, XRPL, Bitcoin ...)"
      },
      "network": {
       "enum": [
        "mainnet",
        "testnet"
       ],
       "type": "string",
       "description": "mainnet (default) or testnet"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "address",
      "network",
      "family",
      "verdict",
      "screening",
      "token_contract",
      "evidence"
     ],
     "properties": {
      "docs": {
       "type": "string"
      },
      "as_of": {
       "type": "string"
      },
      "family": {
       "enum": [
        "evm",
        "other"
       ],
       "type": "string"
      },
      "address": {
       "type": "string"
      },
      "network": {
       "enum": [
        "mainnet",
        "testnet"
       ],
       "type": "string"
      },
      "verdict": {
       "enum": [
        "ok",
        "warn",
        "block"
       ],
       "type": "string",
       "description": "block = listed (sanctions/ransomware); warn = publicly reported scam"
      },
      "evidence": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "screening": {
       "type": "object",
       "required": [
        "listed"
       ],
       "properties": {
        "listed": {
         "type": "boolean"
        },
        "source": {
         "type": [
          "string",
          "null"
         ]
        },
        "category": {
         "type": [
          "string",
          "null"
         ]
        }
       }
      },
      "attribution": {
       "description": "Credit the data sourc
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/spendthebits-address-risk-screening-b7a3e8b8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.spendthebits.com](https://www.zero.xyz/host/x402.spendthebits.com/llms.txt)