# ERC-20 Token Info

> ERC-20 Token Info is a paid API for AI agents from bess-x402.onrender.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-30).

Fetches on-chain facts for an ERC-20 token contract (name, symbol, decimals, total supply, USD price, FDV) across Ethereum, Base, Arbitrum, Optimism, and Polygon.

## Facts

- Endpoint: GET https://bess-x402.onrender.com/v1/crypto/token-info?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/erc-20-token-info-e0c22a91
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8mINsEF5y65RWbb8WJbGH

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-info-e0c22a91
```

Example prompt: Can you look up the on-chain info for the token at contract address 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum — I want to confirm its name, symbol, decimals, current USD price, and fully diluted value before I integrate it.

## When to prefer this

Use this endpoint when you need to verify or look up on-chain metadata for a specific ERC-20 token contract before trading, integrating, or displaying token information. It covers five major EVM-compatible chains (Ethereum, Base, Arbitrum, Optimism, Polygon) and returns both structural metadata (name, symbol, decimals) and market data (USD price, FDV) in a single call, making it ideal for pre-trade validation or token enrichment workflows.

## Known failure modes

- Invalid or non-ERC-20 contract address returns an error
- Unsupported chain identifier returns a validation error
- Token with no price data returns null or zero for USD price and FDV
- Network/RPC timeouts may cause intermittent failures for certain chains
- Non-checksummed or malformed address may be rejected

## How this service works

Facts about an ERC-20 contract read from the chain (Ethereum, Base, Arbitrum, Optimism, Polygon): name, symbol, decimals, total supply, USD price and fully diluted value. Use to verify a token address before trading or integrating it.

## Output

Returns on-chain ERC-20 token metadata including the token name, symbol, decimal places, total supply, current USD price, and fully diluted market value (FDV), sourced directly from the specified blockchain.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "chain": {
       "type": "string",
       "description": "ethereum, base, arbitrum, optimism or polygon"
      },
      "address": {
       "type": "string",
       "description": "Token contract address"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/erc-20-token-info-e0c22a91/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bess-x402.onrender.com](https://www.zero.xyz/host/bess-x402.onrender.com/llms.txt)