# Beggar Bot Safe Transaction Analyzer

> Beggar Bot Safe Transaction Analyzer is a paid API for AI agents from beggar-bot-demand.beggarbot.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-11-02).

Analyzes a Safe multisig transaction or message on Base mainnet, returning structured verification details about the transaction parameters, signatures, and safety.

## Facts

- Endpoint: POST https://beggar-bot-demand.beggarbot.workers.dev/v1/safetx?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/beggar-bot-safe-transaction-analyzer-c15a291e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eBqGkrYJFfV8HQT7s4n_S

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 beggar-bot-safe-transaction-analyzer-c15a291e -d '<json body>'
```

Example prompt: Can you analyze this Safe transaction for me — the Safe is at 0xAbC...123 on Base, it's calling 0xDef...456 with this calldata 0xa9059cbb..., nonce 42, value 0, operation 0 (CALL), and these concatenated signatures 0x1234...abcd — check if it looks valid?

## When to prefer this

Use this endpoint when you need to programmatically verify or audit a Gnosis Safe (Safe) multisig transaction or message on Base mainnet before execution — especially useful for AI agents managing multisig wallets, checking signature correctness, or auditing transaction parameters. Prefer this over generic blockchain RPC calls when you want a structured, interpreted analysis of Safe-specific transaction fields rather than raw on-chain data.

## Known failure modes

- Invalid Safe address format (must be 0x + 40 hex chars)
- Malformed calldata or signatures causing parse errors
- Incorrect nonce leading to mismatch with live Safe state
- Unsupported chain value (only 'base' and 'base-sepolia' supported)
- Payment failure via x402 if USDC balance is insufficient ($0.02 per call)
- Network errors reaching Base RPC when fetching live nonce
- Missing required fields (to, data, safe) returning validation error

## How this service works

Paid: /v1/verify, /v1/risk, /v1/receipt cost $0.01 USDC per call on Base mainnet via x402 (payTo 0x719227f384b66BFEF00093D6d8d32fA9dC2B40e7); utilities analyze Base mainnet (USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) by default, network=base-sepolia optional; /v1/receipt/verify and discovery files are free. Operator: Beggar Bot.

## Output

A JSON object containing analysis of the Safe transaction or message, including decoded parameters, signature validity details, nonce status, operation type interpretation, and any detected issues or warnings about the transaction structure.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "to": {
   "type": "string",
   "description": "tx target"
  },
  "data": {
   "type": "string",
   "description": "0x calldata"
  },
  "safe": {
   "type": "string",
   "pattern": "^0x[0-9a-fA-F]{40}$",
   "description": "Safe address"
  },
  "chain": {
   "type": "string",
   "description": "base (default)"
  },
  "nonce": {
   "type": "string",
   "description": "Safe nonce (default live)"
  },
  "value": {
   "type": "string"
  },
  "message": {
   "type": "string",
   "description": "or SafeMessage text/hex"
  },
  "operation": {
   "type": "string",
   "description": "0 CALL | 1 DELEGATECALL"
  },
  "signatures": {
   "type": "string",
   "description": "0x concatenated signatures"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/beggar-bot-safe-transaction-analyzer-c15a291e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from beggar-bot-demand.beggarbot.workers.dev](https://www.zero.xyz/host/beggar-bot-demand.beggarbot.workers.dev/llms.txt)