Create or edit .cursor/mcp.json in your project root.
{
"mcpServers": {
"boar-blockchain-mcp-basic": {
"url": "https://mcp.boar.network/basic"
}
}
}{
"mcpServers": {
"boar-blockchain-mcp-basic": {
"url": "https://mcp.boar.network/basic"
},
"boar-blockchain-mcp-advanced": {
"url": "https://mcp.boar.network/advanced"
}
}
}Cursor supports streamable-http natively — no transport type field needed.
- Open Cursor Settings > MCP and confirm the servers show a green status indicator.
- Open Composer (Cmd+I / Ctrl+I) and ask: "What is the ETH balance of vitalik.eth?"
- The agent should use the
eth_get_balancetool from Boar blockchain MCP.
- Server shows red/disconnected — Verify the JSON syntax in
.cursor/mcp.json. Restart Cursor after editing. - Tools not available in Composer — MCP tools only work in Agent mode. Make sure you're using Composer with an agent-capable model.
- Changes not picked up — Cursor may cache MCP config. Fully restart the application after editing
.cursor/mcp.json.