ThinkingCap

Implementation Reference

• src/index.ts:90-108 (handler)

  The asynchronous handler function for the 'list_providers' tool that returns a formatted list of available providers and currently configured agents.

  async () => {
    const providerList = Object.entries(PROVIDERS)
      .map(
        ([key, config]) =>
          `- ${key}: ${config.name} (env: ${config.envKey}, default model: ${config.defaultModel})`
      )
      .join("\n");
  
    const currentAgents = agentSpecs.join(", ");
  
    return {
      content: [
        {
          type: "text" as const,
          text: `Available Providers:\n${providerList}\n\nCurrently configured agents: ${currentAgents}\n\nTo change agents, restart the server with different arguments:\nnpx not-enough-kimis provider1:model1 provider2:model2 ...`,
        },
      ],
    };
  }

• src/index.ts:87-109 (registration)

  Registers the 'list_providers' tool with the MCP server using server.tool, with no input schema.

  server.tool(
    "list_providers",
    {},
    async () => {
      const providerList = Object.entries(PROVIDERS)
        .map(
          ([key, config]) =>
            `- ${key}: ${config.name} (env: ${config.envKey}, default model: ${config.defaultModel})`
        )
        .join("\n");
  
      const currentAgents = agentSpecs.join(", ");
  
      return {
        content: [
          {
            type: "text" as const,
            text: `Available Providers:\n${providerList}\n\nCurrently configured agents: ${currentAgents}\n\nTo change agents, restart the server with different arguments:\nnpx not-enough-kimis provider1:model1 provider2:model2 ...`,
          },
        ],
      };
    }
  );

• src/providers.ts:14-64 (helper)

  The PROVIDERS constant listing all supported LLM providers, used by the list_providers handler to generate the provider list.

  export const PROVIDERS: Record<string, ProviderConfig> = {
    openai: {
      name: "OpenAI",
      baseUrl: "https://api.openai.com/v1",
      envKey: "OPENAI_API_KEY",
      isOpenAICompatible: true,
      defaultModel: "gpt-5.1",
    },
    openrouter: {
      name: "OpenRouter",
      baseUrl: "https://openrouter.ai/api/v1",
      envKey: "OPENROUTER_API_KEY",
      isOpenAICompatible: true,
      defaultModel: "moonshotai/kimi-k2-thinking",
    },
    groq: {
      name: "Groq",
      baseUrl: "https://api.groq.com/openai/v1",
      envKey: "GROQ_API_KEY",
      isOpenAICompatible: true,
      defaultModel: "moonshotai/kimi-k2-instruct-0905",
    },
    cerebras: {
      name: "Cerebras",
      baseUrl: "https://api.cerebras.ai/v1",
      envKey: "CEREBRAS_API_KEY",
      isOpenAICompatible: true,
      defaultModel: "zai-glm-4.6",
    },
    xai: {
      name: "xAI",
      baseUrl: "https://api.x.ai/v1",
      envKey: "XAI_API_KEY",
      isOpenAICompatible: true,
      defaultModel: "grok-4-fast",
    },
    anthropic: {
      name: "Anthropic",
      baseUrl: "https://api.anthropic.com/v1",
      envKey: "ANTHROPIC_API_KEY",
      isOpenAICompatible: false,
      defaultModel: "claude-opus-4-5",
    },
    google: {
      name: "Google",
      baseUrl: "https://generativelanguage.googleapis.com/v1beta",
      envKey: "GOOGLE_API_KEY",
      isOpenAICompatible: false,
      defaultModel: "gemini-3-pro-preview",
    },
  };