Four packages. One key. Execution off by default.

1import { MultiClient } from "@multidex/sdk";
2 
3const multi = new MultiClient({ apiKey: process.env.MULTI_API_KEY });
4 
5// Public data — no key needed.
6const book = await multi.markets.getOrderbook("BTC");
7const route = await multi.routing.getRecommendation("BTC", { side: "BUY" });
8 
9// Execution — needs orders:execute AND executionEnabled on the key.
10const order = await multi.orders.place({
11  symbol: "BTC",
12  side: "BUY",
13  type: "MARKET",
14  quantity: "0.01",
15});
16 
17console.log(order.executedOn, route.recommended);

1{
2  "mcpServers": {
3    "multi": {
4      "command": "npx",
5      "args": ["-y", "@multidex/mcp"],
6      "env": {
7        "MULTI_API_KEY": "multi_sk_live_...",
8        "MULTI_READONLY": "0"
9      }
10    }
11  }
12}

1import { TOOLS, toOpenAI, toAnthropic } from "@multidex/tool-schemas";
2 
3// Hand the model only what this key is allowed to do.
4const readOnly = TOOLS.filter((t) => !t.scope.endsWith(":execute"));
5 
6const openaiTools = toOpenAI(readOnly);
7const anthropicTools = toAnthropic(readOnly);

1import { createMultiToolkit } from "@multidex/agent-kit";
2 
3const kit = createMultiToolkit({
4  apiKey: process.env.MULTI_API_KEY,
5  readOnly: false,
6});
7 
8// OpenAI-shaped
9const tools = kit.openaiTools();
10 
11// Dispatch a call the model made — never throws, returns { isError, text }.
12const result = await kit.handle("execute_order", {
13  symbol: "ETH",
14  side: "SELL",
15  type: "MARKET",
16  quantity: "0.5",
17});