# Base Token On-Chain Risk Checker

> Base Token On-Chain Risk Checker is a paid API for AI agents from 2-28-111-166.sslip.io, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Analyzes an ERC-20 token contract on Base chain and returns verifiable on-chain facts including name, supply, ownership status, proxy upgradeability, source verification, privileged function hints, and DEX liquidity, plus risk flags and a plain-language summary.

## Facts

- Endpoint: POST https://2-28-111-166.sslip.io/v1/token-check?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base-token-on-chain-risk-checker-ba62deac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LWVXQi5GDKRMT7bCV-4MY

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 base-token-on-chain-risk-checker-ba62deac -d '<json body>'
```

Example prompt: Can you check this Base token contract 0x4200000000000000000000000000000000000006 for me — is ownership renounced, does it have mint or blacklist functions, is the source verified, and how much liquidity does it have on Uniswap and Aerodrome?

## When to prefer this

Choose this endpoint when you need fast, verifiable on-chain facts about a specific ERC-20 token on the Base chain — especially for pre-trade safety checks, DeFi due diligence, or automated risk scoring pipelines. It is purpose-built for Base and checks Base-specific DEXes (Aerodrome) alongside Uniswap V2/V3. Prefer this over generic blockchain explorers when you need structured JSON output with risk flags and a plain-language summary in a single call. Not suitable for Ethereum mainnet or other chains, holder distribution analysis, or trade simulation.

## Known failure modes

- Invalid or malformed contract address returns an error
- Contract address not found on Base chain returns not-found or empty result
- Unverified source code means privileged function analysis may be incomplete
- Rate limiting or payment failure returns a 402 or rejection response
- Network timeout if Base RPC is slow or congested

## Output

A JSON object containing on-chain facts (token name, total supply, owner address, ownership renounced boolean, upgradeable proxy flag, source verification status, privileged function hints such as mint/pause/blacklist presence, WETH/USDC liquidity on Uniswap V2/V3 and Aerodrome), a list of risk flags, and a short plain-language summary. Does not include holder distribution data or trade simulation results.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base-token-on-chain-risk-checker-ba62deac/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 2-28-111-166.sslip.io](https://www.zero.xyz/host/2-28-111-166.sslip.io/llms.txt)