Add APIStack to Claude Code, Claude Desktop, Cursor and VS Code
Coding assistants are better with real tools: validating test data, checking a domain's DNS or SSL, converting formats or doing date math without guessing. APIStack is a remote MCP server, so there's nothing to install; add the URL and your API key.
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Give your AI agent 100+ tools with one MCP URL
Connect APIStack to Claude Code, Cursor, VS Code or your own agent, with a real agent run.
Set it up
Create a free APIStack account and set your key as APISTACK_API_KEY.
claude mcp add --transport http apistack https://apistack.online/api/mcp/connect \
--header "x-api-key: YOUR_API_KEY"Check it works
Ask the assistant: "Use APIStack to check when the SSL certificate for github.com expires." It should call search_apis, then call_api, and answer with the real expiry date.
Keep the key out of git
Project-level config files (.vscode/mcp.json, .cursor/mcp.json in a repo) are often committed. Put the key in your user-level config, or use your editor's input/env variable support, rather than committing it.