# Bot Bazaar Token Metadata Check

> Bot Bazaar Token Metadata Check is a paid API for AI agents from bot-bazaar.fly.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).

Checks a Base token contract address to determine if it is native Circle USDC or bridged USDbC, returning decimals and EIP-3009 v2 signing readiness.

## Facts

- Endpoint: GET https://bot-bazaar.fly.dev/v1/x402/token-metadata-check?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bot-bazaar-token-metadata-check-ac61331d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wxTTxUSlEnvjz9rUe-l41

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 bot-bazaar-token-metadata-check-ac61331d
```

Example prompt: Can you check whether the Base token at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is native Circle USDC or bridged USDbC, and tell me if it supports EIP-3009 v2 signing?

## When to prefer this

Use this endpoint when you need to quickly verify whether a Base token contract address is the canonical native Circle USDC versus the bridged USDbC variant, especially before configuring x402 payment flows or EIP-3009-based authorization signing. It is purpose-built for Base chain stablecoin classification and signing readiness, making it ideal for AI agents orchestrating on-chain payments or DeFi integrations on Base.

## Known failure modes

- Invalid or malformed contract address returns an error
- Non-token or non-ERC20 contract address may return unknown classification
- Network or RPC issues querying Base chain can cause timeouts
- Address not deployed on Base returns no metadata

## How this service works

Check a Base token contract address for native Circle USDC vs bridged USDbC status, decimals, and EIP-3009 v2 signing readiness.

## Output

Returns the classification of the token as native Circle USDC or bridged USDbC, the token's decimal precision, and whether the contract is ready for EIP-3009 v2 (transferWithAuthorization) signing — key for x402 payment compatibility checks.

## 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",
     "properties": {
      "token": {
       "type": "string",
       "description": "Base 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/bot-bazaar-token-metadata-check-ac61331d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bot-bazaar.fly.dev](https://www.zero.xyz/host/bot-bazaar.fly.dev/llms.txt)