# Aether Base Token Risk & Onchain Data

> Aether Base Token Risk & Onchain Data is a paid API for AI agents from aether-x402.vercel.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).

Looks up onchain metadata and risk verdicts for a Base network ERC-20 token by contract address

## Facts

- Endpoint: POST https://aether-x402.vercel.app/v1/base/token?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aether-base-token-risk-onchain-data-0f5a729b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Bio6L8mpJadfPUIZL8EgV

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 aether-base-token-risk-onchain-data-0f5a729b -d '<json body>'
```

Example prompt: Can you pull the onchain metadata and risk verdict for the Base token at address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 — I want to know the name, symbol, decimals, total supply, and whether it's flagged as risky?

## When to prefer this

Choose this endpoint when you need fast, pay-per-call token metadata and risk assessment specifically for the Base (Coinbase L2) network, paid in USDC via the x402 micropayment protocol. Ideal for AI agents that need to assess token safety before executing DeFi transactions, audit airdropped tokens, or enrich portfolio data with onchain facts without a subscription.

## Known failure modes

- Invalid contract address format (not a valid 0x hex address) — returns validation error
- Contract address does not exist on Base network — returns empty or not-found response
- Payment failure via x402/USDC — request rejected before processing
- Rate limiting or service unavailability — HTTP 429 or 503
- Token has no metadata (non-standard ERC-20) — partial or missing fields in response

## How this service works

Pay-per-call Base onchain data, token risk verdicts and x402 payability audits over x402 (USDC on Base).

## Output

Returns a JSON object containing the token's name, symbol, decimal places, and total supply pulled from onchain data on Base, along with any available risk verdict or audit signals for the contract address.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "token": {
   "type": "string",
   "pattern": "^0x[0-9a-fA-F]{40}$"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "name": "USD Coin",
  "symbol": "USDC",
  "decimals": 6,
  "totalSupply": "..."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aether-base-token-risk-onchain-data-0f5a729b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from aether-x402.vercel.app](https://www.zero.xyz/host/aether-x402.vercel.app/llms.txt)