MCP Server

Relay MCP Server

io.github.relayprotocol/relay-mcp

Repository Registry

What is the Relay MCP server?

Cross-chain bridge and swap quotes, fee estimation, and transaction tracking via Relay Protocol.

How to install Relay

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

RELAY_API_KEY
secret
Optional API key for higher rate limits
RELAY_API_URL
Relay API base URL (default: https://api.relay.link)

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "relay-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@relayprotocol/relay-mcp"
      ],
      "env": {
        "RELAY_API_KEY": "<YOUR_RELAY_API_KEY>",
        "RELAY_API_URL": "<YOUR_RELAY_API_URL>"
      }
    }
  }
}