Elicit can be used from LLM Clients that support the model context protocol. For example you can use Elicit from Claude Code by running the following in the terminal:
claude mcp add --transport http elicit https://elicit.com/api/mcp claude
Then inside Claude Code run mcp, select the elicit server and select Authenticate. Authentication is via OAuth 2.0 and will open a web browser.
Use over MCP has the same usage limits and billing as via the website.