Claude Code reads MCP servers from ~/.claude.json (global) or ./.mcp.json (per-repo). The easiest path is the built-in claude mcp add command.
#Add the server
bash
claude mcp add --transport http index \
https://mcp.index.webenta.sk/mcp \
--header "Authorization: Bearer YOUR_API_KEY"Replace YOUR_API_KEY with a key from Account → API Keys.
#Verify
bash
C:\Users\Alex>claude mcp list
Development Log: https://mcp.index.webenta.sk/mcp - √ Connected
claude.ai Google Calendar: https://calendarmcp.googleapis.com/mcp/v1 - √ Connected
plugin:figma:figma: https://mcp.figma.com/mcp (HTTP) - √ Connected
github: npx -y @modelcontextprotocol/server-github - √ Connected
claude.ai Gmail: https://gmailmcp.googleapis.com/mcp/v1 - ! Needs authentication
claude.ai Google Drive: https://drivemcp.googleapis.com/mcp/v1 - ! Needs authenticationDevelopment Log connected
The √ Connected status confirms Claude Code can reach your Webenta Index project. Start a chat and ask Claude to list your tables.
#Permissions
On the first tool call Claude Code asks how to handle it. Pick Always allow for read tools (query_rows, list_tables) and Ask first for writes (insert_rows, delete_row) until you trust the workflow.
#Tell Claude when to use it
CLAUDE.md is a markdown file Claude Code reads at the start of every session — it's how you give standing instructions without repeating yourself. Drop one in your project root:
markdown
## Data
User data lives in the Webenta Index MCP server (registered as "index").
Before answering any questions about workouts, vocabulary or journal entries,
query the relevant table first. After the user logs something new, insert a row.See Writing custom instructions for more examples and the full recipe.