generated: '2026-07-21'
method: searched
status: published
source: https://docs.uselemma.ai/connections/mcp
description: Lemma operates an official remote MCP server at https://api.uselemma.ai/mcp (Streamable HTTP
  transport), authenticated with a project API key sent as an Authorization Bearer header. It gives coding
  agents (Cursor, Claude Desktop, Claude Code, any MCP client) direct access to the project's traces,
  metrics, and monitors so the agent can pull the exact runs and errors it needs and fix issues in place.
  The docs point to the Platform API reference for the full tool surface; Lemma does not publish a standalone
  named tool list, so no tools are fabricated here.
server:
  name: lemma
  transport: http
  url: https://api.uselemma.ai/mcp
  auth: bearer-api-key
  auth_docs: https://docs.uselemma.ai/connections/mcp
install:
  claude_code: 'claude mcp add --transport http lemma https://api.uselemma.ai/mcp --header "Authorization:
    Bearer <your-api-key>"'
  cursor: 'Settings > MCP Servers: {"mcpServers": {"lemma": {"url": "https://api.uselemma.ai/mcp", "headers":
    {"Authorization": "Bearer <your-api-key>"}}}}'
tool_surface: Not separately published; the MCP docs state the server exposes the Lemma Platform API surface
  (traces, issues, projects, artifacts — see openapi/uselemma-platform-api-openapi-original.json, 42 operations).
deployment:
  mode: remote
  endpoint: https://api.uselemma.ai/mcp
  verified: probed
  probe: gated
  checked: '2026-08-12'
  source: catalog MCP census