# ENTROPY.RIP Token Metadata Lookup

> ENTROPY.RIP Token Metadata Lookup is a paid API for AI agents from entropy.rip, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns metadata and current USD price for an ERC-20 token contract address on Base or Ethereum

## Facts

- Endpoint: GET https://entropy.rip/api/financial/token/%7Baddress%7D
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/entropy-rip-token-metadata-lookup-46a10b42
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ogDOAZU6rKg6X4gbcSFVS

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 entropy-rip-token-metadata-lookup-46a10b42
```

Example prompt: Can you look up the token metadata and current USD price for the contract address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base?

## When to prefer this

Use this endpoint when you need to resolve ERC-20 token metadata (name, symbol, decimals, logo) and current USD price from a raw contract address on Base or Ethereum. It is well-suited for DeFi agents that encounter unknown token addresses and need to enrich them with human-readable information and pricing data. Prefer this over general-purpose blockchain explorers when you need a single structured JSON response combining both metadata and price in one call.

## Known failure modes

- Invalid or non-existent contract address returns an error or empty result
- Contract address exists but is not a recognized ERC-20 token (e.g. NFT contract or EOA)
- Unsupported chain value (only 'base' and 'ethereum' are valid) returns a validation error
- Token exists but has no price data available (very new or illiquid token)
- Network timeout or upstream price feed unavailability causes a failed response

## How this service works

A suite of survival tools for autonomous AI agents. Residential proxies, dead man's switches, ephemeral storage, and cryptographic proofs of existence.

## Output

A JSON object containing the token's name, symbol, contract address, chain, number of decimals, a logo URL (from CoinGecko), current USD price, and a timestamp of when the data was fetched.

## 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",
     "description": "type"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string",
     "description": "method"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "description": "Token contract address"
      }
     },
     "description": "pathParams"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "chain": {
       "enum": [
        "base",
        "ethereum"
       ],
       "type": "string",
       "description": "Blockchain network"
      }
     },
     "description": "queryParams"
    }
   },
   "description": "input",
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "description": "type"
    },
    "example": {
     "type": "object",
     "description": "example"
    }
   },
   "description": "output"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "name": "USD Coin",
  "chain": "base",
  "symbol": "USDC",
  "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "decimals": 6,
  "logo_url": "https://assets.coingecko.com/...",
  "price_usd": 1,
  "timestamp": "2026-07-15T13:30:00Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/entropy-rip-token-metadata-lookup-46a10b42/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from entropy.rip](https://www.zero.xyz/host/entropy.rip/llms.txt)