crypto

Cursor plugin that looks up, for a coin ticker, which networks Binance and OKX publish and the token contract address on each network when a public endpoint provides it. No login and no API keys.

Tool

get_coin_networks(symbol, exchange?)

• symbol: ticker such as USDT or PEPE.
• exchange: optional binance or okx. Omit it to query both.

Each exchange entry includes:

Field	Meaning
network	Exchange network code or name
network_name	Display name
contract_address	Token contract, or null when the public payload has none
deposit_enabled	Deposit open, or null when unpublished
withdraw_enabled	Withdrawal open, or null when unpublished
withdraw_fee	Withdrawal fee in the coin, when published
withdraw_min	Minimum withdrawal, when published

Endpoints that work without a key

Tested live with curl (no OK-ACCESS-* or Binance API-key headers).

Binance: networks and contract addresses

GET https://www.binance.com/bapi/capital/v1/public/capital/getNetworkCoinAll

Unauthenticated website endpoint. Returns each coin's networkList, including network, name, contractAddress, depositEnable, withdrawEnable, withdrawFee, and withdrawMin. A query string such as ?coin=USDT is ignored; the body is still the full list (~2 MB). The plugin caches it in memory for five minutes.

The official wallet route GET https://api.binance.com/sapi/v1/capital/config/getall is signed user data, not a keyless source. From this environment it also returned HTTP 451 (restricted location). The older paths /bapi/capital/v1/public/capital/config/getall and /bapi/capital/v2/public/capital/config/getall return HTTP 404.

OKX: withdrawal networks, fees, and minimums only

GET https://www.okx.com/v2/asset/withdraw/fee-amount-infos

Unauthenticated. Each coin has parallel arrays networkName, minFee, and minAmount. There is no contract address and no deposit/withdraw enable flag. Example: PEPE is listed only on Ethereum (ERC20); USDT is listed on many networks (Ethereum, Tron, Solana, and others).

OKX does not publish contract addresses on a keyless endpoint.

GET https://www.okx.com/api/v5/asset/currencies is the funding API that returns chain, canDep, canWd, minWd, minFee, and ctAddr (contract). Without OK-ACCESS-KEY it returns HTTP 401 Request header OK-ACCESS-KEY can not be empty. The same is true for GET /api/v5/asset/deposit-withdraw-status. This plugin does not call those routes and does not ask for keys.

Other public OKX routes that were checked and are not a substitute:

• GET /api/v5/public/instruments lists spot markets only. No networks or contracts.
• GET /api/v5/asset/exchange-list is a directory of other exchanges.
• GET /priapi/v1/dx/market/v2/search is OKX Web3 token search. It returns contract addresses for similarly named tokens on many chains, including unrelated contracts. It is not the OKX exchange deposit-network list, so it is not used.
• GET /priapi/v3/growth/price/currency-detail sometimes embeds a single explorer URL (PEPE's Ethereum contract appears in blockBrowser) and leaves tokenContractAddress empty. USDT's explorer URL has no contract. Not used as the network source.

Run the local check

From the plugin root:

python3 scripts/test_coins.py

That queries USDT and PEPE on both exchanges and prints JSON. Python 3.11+ standard library only; nothing to install.

MCP server

mcp.json starts python3 ${CURSOR_PLUGIN_ROOT}/src/server.py over stdio (Content-Length framed JSON-RPC). The server exposes get_coin_networks.

Install / source

• Repository: https://github.com/manifoldor/crypto
• Requires Python 3.9+ (standard library only).

中文说明

crypto 插件：输入币种，查询币安和欧易支持的充提网络及各链合约地址，只用公开接口，无需登录或 API Key。 注意：欧易的公开接口不提供合约地址，欧易结果里的 contract_address 为空；币安可返回完整信息。

License

MIT © 2026 Yishan Lin