Crypto Token Metadata

Live on-chain token metadata for an ERC-20 or ERC-721 contract (Base, Ethereum, Polygon, Arbitrum, Optimism; keyless).

Overview

Live on-chain token metadata for an ERC-20 or ERC-721 contract (Base, Ethereum, Polygon, Arbitrum, Optimism; keyless). Returns name, symbol, decimals, detected standard, and total supply (raw + formatted). The authoritative read straight from the contract — complements crypto.token-price and crypto.contract (ABI/source).

Endpoint

Method	Endpoint	Price	Description
GET	/v1/marketplace/api/crypto-token-metadata	$0.001656	Invoke Crypto Token Metadata (Blockchain) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i https://api.jarvisclaw.ai/v1/marketplace/api/crypto-token-metadata

# 2. Pay it (the SDK signs and retries for you)
curl -H "X-PAYMENT: <signed-payload>" https://api.jarvisclaw.ai/v1/marketplace/api/crypto-token-metadata

Open in the marketplace