What data and operations does this server provide?
It provides balances, token prices, gas estimates, swap quotes, and transaction history, as well as the ability to execute swaps and transfers.
@y0exchange
基本信息
What is this?
使用下面的配置,将此服务器添加到你的 MCP 客户端。
{
"mcpServers": {
"y0": {
"command": "npx",
"args": [
"-y",
"@y0exchange/mcp"
],
"env": {
"Y0_API_KEY": "y0_your_api_key_here"
}
}
}
}Get native and ERC-20 token balances for a wallet address on a specific chain. If address is omitted, uses the wallet linked to the API key.
Get aggregated portfolio view across all chains with USD values, per-chain breakdown, and allocation percentages. If address is omitted, uses the wallet linked to the API key.
Get current USD price and 24h change for one or more tokens. Accepts CoinGecko IDs (e.g. "ethereum") or symbols (e.g. "ETH").
Get a swap quote with routing preview. Shows expected output, fees, and estimated gas. Does NOT execute — read-only price check.
Get current gas prices across supported chains with USD estimates for common operations (transfer, swap, approve).
Get transaction history for a wallet address from block explorer (Etherscan/BSCScan). Supports filtering by type. If address is omitted, uses the wallet linked to the API key.
Build an unsigned swap transaction. The user will approve and sign on their device — y0 never holds private keys. Requires Y0_API_KEY to be configured.
Build an unsigned transfer transaction. Supports native tokens and ERC-20. The user will approve and sign on their device. Requires Y0_API_KEY to be configured.
@y0exchange/mcp is a Model Context Protocol server that gives AI agents real-time access to DeFi — balances, prices, gas, swap quotes, transaction history, and the ability to execute swaps and transfers. It is designed for users of MCP-compatible AI clients who want their AI to interact with blockchains non-custodially.
Connect the server to Claude, ChatGPT, or any MCP-compatible AI client. Users converse with the AI, which communicates with the blockchain through this server. For write operations (swaps and transfers), the server builds unsigned transactions that the user signs on their own device via the y0 Signing Service.
It provides balances, token prices, gas estimates, swap quotes, and transaction history, as well as the ability to execute swaps and transfers.
Yes. y0 never touches private keys — write operations build unsigned transactions that the user signs on their own device.
The server works with Claude, ChatGPT, or any MCP-compatible AI client.
The server generates an unsigned transaction, which is sent to the y0 Signing Service. The user reviews and signs the transaction on their own device before it is broadcast.
The server supports multiple blockchains, though the README does not list specific chains.

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