# Multichain RPC Token Metadata

> Multichain RPC Token Metadata is a paid API for AI agents from multichain-rpc.clankerceo.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).

Fetches ERC-20 token metadata (name, symbol, decimals, total supply) for any token contract on Base, Polygon, Arbitrum, Optimism, or Ethereum.

## Facts

- Endpoint: GET https://multichain-rpc.clankerceo.workers.dev/token-metadata
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/multichain-rpc-token-metadata-2713e857
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qyHxNDX4Fs499D6_t_i8A

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 multichain-rpc-token-metadata-2713e857
```

Example prompt: What's the name, symbol, and decimals for the token contract 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum?

## When to prefer this

Choose this endpoint when you need fast, cheap on-chain ERC-20 token metadata lookups across Base, Polygon, Arbitrum, Optimism, or Ethereum without running your own RPC node. At $0.002 per call, it is cost-effective for per-call agent workflows. Prefer this over general-purpose RPC providers when you specifically need token name, symbol, decimals, and supply in a single normalized JSON response priced in USDC via x402.

## Known failure modes

- Invalid or non-existent contract address returns an error or empty response
- Unsupported chain name results in a bad request error
- Non-ERC-20 contract address (e.g. NFT or EOA) may return null or incomplete metadata
- Network congestion on the underlying RPC may cause timeouts
- Payment failure (x402) if USDC allowance is insufficient

## How this service works

Cheap, factual EVM chain lookups priced per call in USDC. Base, Polygon, Arbitrum, Optimism and Ethereum.

## Output

Returns a JSON object with the token's name, symbol, decimals, contract address, chain, and total supply (both raw integer and human-readable decimal amount formatted using the token's decimals).

## 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",
    "queryParams"
   ],
   "properties": {
    "type": {
     "enum": [
      "http"
     ],
     "type": "string"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "chain": {
       "type": "string"
      },
      "contract": {
       "type": "string"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "enum": [
      "json"
     ],
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "name": "USD Coin",
  "chain": "base",
  "symbol": "USDC",
  "contract": "0x…",
  "decimals": 6,
  "totalSupply": {
   "raw": "1",
   "amount": "0.000001"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/multichain-rpc-token-metadata-2713e857/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from multichain-rpc.clankerceo.workers.dev](https://www.zero.xyz/host/multichain-rpc.clankerceo.workers.dev/llms.txt)