Cursor

Add one block to ~/.cursor/mcp.json and Cursor's agent gets Solrouter's sealed private chat and research tools.

Drop one block into Cursor's MCP config and its agent gets a sealed second model. Prompts sent through encrypted_chat are sealed on your machine and opened only inside the Intel TDX enclave.

Item	Value
File	`~/.cursor/mcp.json` (all projects), or `.cursor/mcp.json` in one project
Env	`SOLROUTER_API_KEY`
Needs	Node.js 18 or newer, for `npx`
Sealed	Yes, for `encrypted_chat` and the model step of the research tools

Setup

Edit mcp.json

Merge this into ~/.cursor/mcp.json. If the file already has mcpServers, add only the solrouter entry.

{
  "mcpServers": {
    "solrouter": {
      "command": "npx",
      "args": ["-y", "@solrouter/mcp-server"],
      "env": { "SOLROUTER_API_KEY": "sk_solrouter_..." }
    }
  }
}

Restart Cursor

The tools show up under MCP in Cursor's settings. Ask the agent to use encrypted_chat for anything private.

Recommended models

Model	Why
`gpt-oss-20b`	The default for `encrypted_chat`
`nosana:qwen3-coder:30b`	Code review and refactors

Each call is capped at 8K tokens of context and 4K of output. See Models.

What is sealed

Sealed: encrypted_chat, and the final model step of private_research, private_token_analysis, and private_wallet_audit.
Not sealed: the lookups those research tools make (Brave, DexScreener, CoinGecko, Solana RPC, straight from your machine), and agent_run, which sends your prompt to Solrouter's backend.

The full tool list is on MCP server.

When it fails

Symptom	Fix
No Solrouter tools in the tool list	Cursor reads MCP config at start. Quit it fully and open it again. Check the JSON is valid.
`SOLROUTER_API_KEY is not set`	The `env` block is missing or misspelled.
401 unauthorized	The key is mistyped or deleted. Keys start with `sk_solrouter_`.
402 insufficient funds	Your plan calls are used up and the USDC balance is below $0.02. Pick a plan or add USDC. See Pricing.
`BRAVE_API_KEY not configured`	The research tools need a Brave Search key in `env`. `encrypted_chat` does not.
"Nosana GPU node is warming up"	The model's node was idle. Wait a moment and ask again.