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The OnePerfectSlice MCP server is hosted — there’s nothing to install. You add the URL once and authenticate through your browser.

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Connect

1

Add the server

claude mcp add --transport http ops https://mcp.oneperfectslice.ai/mcp
Add --scope user to make ops available across all your projects:
claude mcp add --transport http ops --scope user https://mcp.oneperfectslice.ai/mcp
2

Authenticate

In Claude Code, open the MCP panel:
/mcp
Select ops, choose Authenticate, and your browser will open. Log in to OnePerfectSlice and select the team whose data this connection should access. Claude Code receives the token and reconnects automatically.
3

Verify

Run /mcp again — ops should show as connected with 9 tools.

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Test it

In Claude Code, try: 
Use ops to list available slices
You should see a tool call to list_slices and get back a list of your team’s slices.

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Troubleshooting

ProblemSolution
ops not showing in /mcpRe-run the claude mcp add command, then restart Claude Code
Stuck “needs authentication”Run /mcp, select ops, and choose Authenticate to complete the browser flow
Browser flow didn’t finishMake sure you completed login and team selection; then retry from /mcp
Wrong team’s dataReconnect from /mcp and select a different team during authentication
Session expiredTokens refresh automatically; if a call fails, re-authenticate from /mcp

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Switching teams

Each connection is scoped to one team. To point ops at a different team, run /mcp, choose ops, re-authenticate, and select the new team.