opentax for Claude.ai
io.github.invaro/opentax
Verifiable US tax oracle for AI agents: cited, machine-checkable federal and state tax computation
client:Claude.ai
transport:streamable-http
runtime:npm
tools:15
Install opentax in Claude.ai
Settings → Connectors → Add custom connector
https://opentax.invaro.ai/mcp
Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs