# ERC-20 Token Due Diligence on Base (auditor-x402)

> ERC-20 Token Due Diligence on Base (auditor-x402) is a paid API for AI agents from auditor-x402.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).

Aggregates GoPlus risk flags, on-chain token facts, and Uniswap v3 pool liquidity into a single due-diligence report for any ERC-20 on Base

## Facts

- Endpoint: POST https://auditor-x402.onrender.com/api/token-due-diligence?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/erc-20-token-due-diligence-on-base-auditor-x402-c6464217
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zrkP6dLAvoILAo__XVi0O

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 erc-20-token-due-diligence-on-base-auditor-x402-c6464217 -d '<json body>'
```

Example prompt: Can you run a full due diligence check on the Base token at 0x4200000000000000000000000000000000000006 — I want to see its GoPlus risk flags, on-chain ownership info, whether it's a proxy, and how much liquidity it has on Uniswap v3 against WETH and USDC?

## When to prefer this

Choose this endpoint when you need a consolidated, one-call due-diligence report on an ERC-20 on Base that combines security risk signals, on-chain contract metadata, and DEX liquidity — instead of making separate calls to GoPlus, an RPC provider, and Uniswap. Ideal for pre-trade safety checks, bot risk gating, or research workflows where speed and token cost per call matter.

## Known failure modes

- Invalid or non-Base contract address returns an error or empty result
- Token not deployed on Base returns no on-chain data
- No Uniswap v3 pools found for token returns empty pool array
- GoPlus API unavailable causes partial result or timeout
- Very new token may have incomplete or missing GoPlus data
- Non-ERC-20 contract address may return unexpected data

## How this service works

One-call due diligence for an ERC-20 on Base: GoPlus risk flags, on-chain facts (supply, owner, proxy), and Uniswap v3 pools vs WETH/USDC with quote-side liquidity in USD. Returns objective signals, not a verdict. Replaces three separate calls.

## Output

Returns a structured report containing: GoPlus security risk flags (honeypot, buy/sell tax, mintable, unverified source, hidden owner, blacklist functions, etc.), on-chain token facts (total supply, owner address, proxy detection with implementation address if applicable), and Uniswap v3 pool data for pairs against WETH and USDC (pool address, fee tier, TVL/liquidity in USD). The report surfaces objective signals without issuing a buy/sell verdict.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "tokenAddress": {
   "type": "string",
   "description": "ERC-20 token contract address (0x...) on Base"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/erc-20-token-due-diligence-on-base-auditor-x402-c6464217/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from auditor-x402.onrender.com](https://www.zero.xyz/host/auditor-x402.onrender.com/llms.txt)