letta-mcp-server/src/tools/models/list-llm-models.js

Model Context Protocol (MCP) server for Letta - provides tools for managing agents, memory, and passages

/**
 * Tool handler for listing available LLM models
 */
export async function handleListLlmModels(server, _args) {
    try {
        const headers = server.getApiHeaders();

        // Use the specific endpoint from the OpenAPI spec
        const response = await server.api.get('/models/', { headers });
        const models = response.data; // Assuming response.data is an array of LLMConfig objects

        return {
            content: [
                {
                    type: 'text',
                    text: JSON.stringify({
                        model_count: models.length,
                        models: models,
                    }),
                },
            ],
        };
    } catch (error) {
        server.createErrorResponse(error);
    }
}

/**
 * Tool definition for list_llm_models
 */
export const listLlmModelsDefinition = {
    name: 'list_llm_models',
    description:
        'List available LLM models configured on the Letta server. Use with create_agent or modify_agent to set agent model preferences.',
    inputSchema: {
        type: 'object',
        properties: {}, // No input arguments needed
        required: [],
    },
};