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.
RELAY_API_KEYsecretOptional API key for higher rate limits
RELAY_API_URLRelay API base URL (default: https://api.relay.link)
{
"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>"
}
}
}
}{
"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>"
}
}
}
}{
"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>"
}
}
}
}{
"servers": {
"relay-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@relayprotocol/relay-mcp"
],
"env": {
"RELAY_API_KEY": "<YOUR_RELAY_API_KEY>",
"RELAY_API_URL": "<YOUR_RELAY_API_URL>"
}
}
}
}claude mcp add relay-mcp --env RELAY_API_KEY=<YOUR_RELAY_API_KEY> --env RELAY_API_URL=<YOUR_RELAY_API_URL> -- npx -y @relayprotocol/relay-mcpRelated MCP servers
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