TokenSpend JavaScript and TypeScript

Official JavaScript client for the TokenSpend API, with bundled TypeScript declarations. It has no runtime dependencies.

npm install @tokenspend/sdk
export TOKENSPEND_API_KEY=tsr_...

import { TokenSpend } from "@tokenspend/sdk";

const client = new TokenSpend();
const response = await client.chat.completions.create({
  model: "meta/muse-spark-1.2",
  messages: [{ role: "user", content: "Hello" }]
});
console.log(response.choices[0]?.message.content);

Set stream: true to receive an async iterable of server-sent chunks. client.messages.create(...) uses the Anthropic-compatible Messages API. See https://tokenspend.dev/docs/router.

Every registry model uses the same method:

for (const model of [
  "xai/grok-4.5",
  "meta/muse-spark-1.2",
  "thinking-machines/inkling",
  "moonshot/kimi-k3"
]) {
  await client.chat.completions.create({
    model,
    messages: [{ role: "user", content: "Hello" }]
  });
}

The SDK never accepts a serving-host selector.