# ERC-20 Token Ticker Symbol Lookup

> ERC-20 Token Ticker Symbol Lookup is a paid API for AI agents from twin.unykorn.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Returns the ticker symbol (e.g. USDC, WETH) of an ERC-20 token contract on a specified EVM-compatible chain

## Facts

- Endpoint: POST https://twin.unykorn.org/erc20-symbol?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/erc-20-token-ticker-symbol-lookup-b3b28c78
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9L_H8VtxFUoi-Jl6Dn39H

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-ticker-symbol-lookup-b3b28c78 -d '<json body>'
```

Example prompt: What's the ticker symbol for the ERC-20 token at contract address 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum?

## When to prefer this

Use this endpoint when you need to resolve an ERC-20 token's ticker symbol from its on-chain contract address across major EVM networks including Ethereum, Base, Polygon, Arbitrum, Optimism, BSC, Avalanche, Gnosis, Linea, and Scroll. Prefer this over generic blockchain RPC calls when you want a simple paid API abstraction without managing your own nodes.

## Known failure modes

- Contract address not found on specified chain — returns error or ok:false
- Address is not an ERC-20 contract (e.g. EOA or non-standard contract) — symbol call may revert
- Unsupported chain specified — validation error on enum field
- Malformed contract address (not 0x + 40 hex chars) — schema validation failure
- Network/node timeout for the specified chain — upstream error

## How this service works

Ticker symbol of a token contract — Genesis402 / UnyKorn Operator Network

## Output

Returns a JSON object with ok:true, the ERC-20 ticker symbol string for the queried contract on the specified chain, a payment receipt containing a transaction hash, USD amount, and receipt ID, and a generated_at ISO8601 timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "params": {
   "type": "object",
   "properties": {
    "chain": {
     "enum": [
      "ethereum",
      "base",
      "polygon",
      "arbitrum",
      "optimism",
      "bsc",
      "avalanche",
      "gnosis",
      "linea",
      "scroll"
     ],
     "type": "string"
    },
    "contract": {
     "type": "string",
     "pattern": "^0x[0-9a-fA-F]{40}$"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "type": "erc20-symbol",
  "receipt": {
   "tx_hash": "0x<64hex>",
   "amount_usd": 0.001,
   "receipt_id": "g402-<16hex>"
  },
  "generated_at": "<iso8601>"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/erc-20-token-ticker-symbol-lookup-b3b28c78/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from twin.unykorn.org](https://www.zero.xyz/host/twin.unykorn.org/llms.txt)