lemlist.com
lemlist is a sales outreach platform for managing campaigns, leads, sequences, enrichment, inbox activity, and related team workflows. It also offers an MCP server so AI assistants can interact with a user's lemlist workspace.
lemlist exposes two developer integration surfaces on its own domains: a REST API at `https://api.lemlist.com/api` authenticated with a lemlist API key via HTTP Basic auth, and an MCP server at `https://app.lemlist.com/mcp` that accepts either self-onboarding OAuth or the same API key in `X-API-Key`.
- lemlist MCP serverdetected
- lemlist REST APIdiscovered
Sign in at lemlist app, open Settings → Integrations (the MCP help article shows Settings → Team → Integrations), click Generate a new API key / Generate, and store the key securely because it may not be shown again. The API docs note this key is used as the BASIC-auth password for the REST API, and the MCP docs show it can also be sent in the X-API-Key header for MCP.
Point your MCP client at the server URL and approve access in the browser. The server supports OAuth Dynamic Client Registration (RFC 7591), so the client registers itself automatically — no developer-portal app, client_id, or client_secret to create.
conventions · 0/8 published
- integrations.json✗
/.well-known/integrations.json - llms.txt✗
/llms.txt - API catalog✗
/.well-known/api-catalog - OpenAPI document✗
/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json - MCP server card✗
/.well-known/mcp/server-card.json - OAuth protected resource✗
/.well-known/oauth-protected-resource - Agent card✗
/.well-known/agent-card.json - Agent skills✗
/.well-known/agent-skills/index.json
Publish these signals → /publishing