Mintplex-Labs/anything-llm · critical · Error

No Moonshot AI API key was set.

Error message

No Moonshot AI API key was set.

What it means

Constructor guard for MoonshotAiLLM: throws if process.env.MOONSHOT_AI_API_KEY is absent. The key builds the OpenAI-compatible client at https://api.moonshot.ai/v1. Default model is moonshot-v1-32k.

Source

Thrown at server/utils/AiProviders/moonshotAi/index.js:14

const { NativeEmbedder } = require("../../EmbeddingEngines/native");
const {
  LLMPerformanceMonitor,
} = require("../../helpers/chat/LLMPerformanceMonitor");
const {
  handleDefaultStreamResponseV2,
  formatChatHistory,
} = require("../../helpers/chat/responses");
const { MODEL_MAP } = require("../modelMap");

class MoonshotAiLLM {
  constructor(embedder = null, modelPreference = null) {
    if (!process.env.MOONSHOT_AI_API_KEY)
      throw new Error("No Moonshot AI API key was set.");
    this.className = "MoonshotAiLLM";
    const { OpenAI: OpenAIApi } = require("openai");

    this.openai = new OpenAIApi({
      baseURL: "https://api.moonshot.ai/v1",
      apiKey: process.env.MOONSHOT_AI_API_KEY,
    });
    this.model =
      modelPreference ||
      process.env.MOONSHOT_AI_MODEL_PREF ||
      "moonshot-v1-32k";
    this.limits = {
      history: this.promptWindowLimit() * 0.15,
      system: this.promptWindowLimit() * 0.15,
      user: this.promptWindowLimit() * 0.7,
    };

    this.embedder = embedder ?? new NativeEmbedder();

View on GitHub (pinned to 526360e320)

Solutions

1. Set MOONSHOT_AI_API_KEY in server/.env to a valid Moonshot key.
2. Restart the server to reload env.
3. Double-check the exact env var name (MOONSHOT_AI_API_KEY, with _AI).
4. Inject the secret into the container/CI environment.

Example fix

// server/.env
MOONSHOT_AI_API_KEY=your_key_here
MOONSHOT_AI_MODEL_PREF=moonshot-v1-32k

if (!process.env.MOONSHOT_AI_API_KEY) {
  throw new Error('MOONSHOT_AI_API_KEY missing — set it before enabling Moonshot.');
}

try {
  const llm = new MoonshotAiLLM(embedder, modelPref);
} catch (e) {
  if (/No Moonshot AI API key/i.test(e.message)) {
    // config error — note the exact var name MOONSHOT_AI_API_KEY
  }
}

When it happens

Trigger: Instantiating `new MoonshotAiLLM(...)` without MOONSHOT_AI_API_KEY set, e.g. selecting Moonshot as the provider without credentials.

Common situations: Provider switched to Moonshot without setting the key; .env typo (MOONSHOT_API_KEY vs MOONSHOT_AI_API_KEY); secret missing from the deploy environment.

Related errors

• No Minimax API key was set.
• No Mistral API key was set.
• No Novita API key was set.
• No Perplexity API key was set.
• No PPIO API key was set.

AI-assisted analysis of Mintplex-Labs/anything-llm@526360e320 (2026-08-13). Data as JSON: /api/errors/c81c64920ee94ab0. Report an issue: GitHub.