# x402-audit Token Safety Audit (Base)

> x402-audit Token Safety Audit (Base) is a paid API for AI agents from x402-audit.tatschluizguilherme.workers.dev, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-02).

Performs a comprehensive on-chain safety audit of an ERC-20 token on Base, returning a 0-100 safety score plus verdict covering honeypot simulation, buy/sell/transfer taxes, liquidity, holders, source verification, proxy status, and owner renouncement.

## Facts

- Endpoint: GET https://x402-audit.tatschluizguilherme.workers.dev/token?utm_source=zero.xyz
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-audit-token-safety-audit-base-120a4308
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Y21EnyLzjQHKed0nzGvHD

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 x402-audit-token-safety-audit-base-120a4308
```

Example prompt: Can you run a full safety audit on the Base token at 0x4200000000000000000000000000000000000006 — I want to know if it's a honeypot, what the buy/sell taxes are, how much liquidity it has, and what the overall safety score is?

## When to prefer this

Use this endpoint when you need a comprehensive, multi-factor token safety report specifically on the Base network — especially when honeypot simulation, tax analysis, and renouncement status are all needed in a single call. It is more thorough than a simple liquidity check and provides an aggregated safety score ideal for automated trading bots, DeFi due diligence agents, or user-facing investment advisors. Prefer this over raw on-chain calls when you want a pre-computed verdict rather than raw contract data.

## Known failure modes

- Invalid or non-ERC-20 contract address returns an error
- Token not deployed on Base returns not-found error
- Unverified contracts may have incomplete source verification data
- Very new tokens with no liquidity may return zero liquidity or limited holder data
- Network RPC errors on Base may cause timeouts
- Payment failure (insufficient USDC) blocks the request

## How this service works

Pay-per-call on-chain API for AI agents and developers: wallet audits, token safety audits (honeypot detection), live gas prices, token prices, transaction receipts, balances, ENS resolution, block data, ERC-20 allowances, transaction simulation, swap quotes and multicall batches — all computed on-chain via public RPCs (no external market API). Pay per request in USDC on Base via the x402 exact scheme (EIP-3009 transferWithAuthorization). No API key, no signup, no subscription.

## Output

Returns a structured JSON response with a 0-100 safety score, a pass/warn/fail verdict, honeypot simulation result, buy/sell/transfer tax percentages, liquidity in USD, holder count, whether the source code is verified on-chain, whether the contract is a proxy, and whether the owner has renounced ownership.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "score": 0,
  "address": "0x3e12b9d6a4d12cd9b4a6d613872d0eb32f68b380",
  "reasons": [
   "HONEYPOT: simulação de venda bloqueada (não dá pra sair)"
  ],
  "verdict": "danger"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-audit-token-safety-audit-base-120a4308/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-audit.tatschluizguilherme.workers.dev](https://www.zero.xyz/host/x402-audit.tatschluizguilherme.workers.dev/llms.txt)