Windsurf reads its MCP servers from mcp_config.json under the mcpServers key. The MCPs icon in the top right of the Cascade panel, or Devin Settings, Cascade, MCP Servers. The documentation for this file now lives under the Devin Desktop product name; the Windsurf docs URL redirects there. Save and reopen the MCP Servers list; Cascade picks it up without restarting the editor.
| Scope | Path |
|---|---|
| macOS, Windows and Linux | ~/.codeium/windsurf/mcp_config.json |
Read this first: mcp_config.json applies to the legacy Cascade agent only. The Devin Local agent, the default for new tabs, takes its servers from the Devin CLI config files, so a correct entry here can still be invisible in a fresh tab. The other hard number is a cap: Cascade reaches at most 100 tools at once, and every enabled server spends from it.
| MCP Time Tracker in Windsurf Track billable time without leaving the chat. |
| MCP Price Tracker in Windsurf Check and watch product prices on ordinary shop pages. |
| MCP Spreadsheet in Windsurf Read, query, edit and convert xlsx and csv files safely. |
| MCP Invoice in Windsurf Numbered invoices with tax lines, rendered to a PDF. |
| MCP Expense Tracker in Windsurf Receipts, mileage and expenses that turn into invoice lines. |
| MCP Currency Converter in Windsurf ECB reference rates with the rate date on every answer. |
| MCP Docx in Windsurf Real Word documents from chat: proposals, contracts, quotes. |
| MCP Timezone Planner in Windsurf Find meeting slots inside everyone's working hours. |
| MCP Office Suite in Windsurf One config entry that exposes every tool of the five servers. |
Each page carries the exact config entry, three prompts that were run against the server, and the hosted alternative that needs no install.
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