Zapier

Register the LUU MCP server in Zapier's MCP Connections, then call LUU tools as a step inside any Zap. About 5 minutes from get-key to first running Zap.

What you'll get

Zapier's MCP integration (rolled out through 2025–2026) lets external LLMs invoke any of Zapier's 8,000+ connected apps as tools. In reverse, you can register the LUU MCP server in Zapier so that Zapier workflows (Zaps) can call LUU tools as steps. This is the most common pattern for non-technical buyers — it lets a Zap automatically forecast, fact-check, or generate briefs as part of an existing automation.

Prerequisites

  • Zapier account (any tier with AI actions)
  • An LUU API key sign up (free tier: 25 calls/day, no card)

Pattern 1 — LUU MCP as a Zap step (recommended)

This pattern: a Zap is triggered (e.g. "new row in Google Sheets"), and the Zap calls LUU as one of its actions.

Step 1 — register the LUU MCP server

Go to Zapier → Settings → MCP Connections → Add MCP Server.

FieldValue
NameLUU
TypeHTTP
URLhttps://api.leadershipunderuncertainty.org/api/mcp
Auth methodBearer token
Tokenyour LUU API key

Save.

Step 2 — use LUU in a Zap

In any Zap, add a step → AI by Zapier (or OpenAI / Claude — any LLM provider) → enable Use MCP tools → select LUU.

The LLM step now has access to all 27 LUU tools. In its prompt, write:

For each new row added to the Sheet:
1. Use luu_forecast to estimate the probability stated in column B.
2. Use luu_fact_check on the citation in column C.
3. Output a JSON object with { probability, citationVerified, rationale }.

The LLM step calls LUU tools as needed and returns structured output. The next Zap step writes that output back to the Sheet.

Pattern 2 — Zapier as a downstream LUU consumer

This pattern: LUU emits an event (e.g. a new prediction crosses a threshold), and Zapier picks it up via webhook to trigger a downstream action.

LUU's webhook system supports this:

  • See /api/v1/webhooks and the luu_subscribe tool for emitting events
  • In Zapier, create a Zap with Webhooks by Zapier → Catch Hook and use the URL it generates as the LUU webhook target

Typical use: "post a Slack message when our forecast probability for X moves more than 10pp."

Common Zap recipes

TriggerLUU stepAction
New row in Google Sheetsluu_forecast on the questionWrite probability + rationale back to the row
New email tagged "intel"luu_signals + luu_fact_checkAppend to a Notion page
Daily 7 AMluu_brief + luu_signalsPost to Slack channel
New CRM contactget_strategic_landscape for actor mapEnrich CRM record
Inbound webhook from monitoring toolluu_risk_assessmentOpen a PagerDuty incident

Troubleshooting

"MCP Connections" not visible in settings: Your account's plan or rollout cohort doesn't have it yet. Check Zapier's status page or contact support.

LUU tools don't appear in the AI step: Confirm the connection in MCP Connections shows status "Connected"; in the AI step, confirm "Use MCP tools" is enabled and the LUU server is selected.

Calls succeed but return empty: Your prompt may not be explicit enough. LLMs in workflow tools tend to call tools more conservatively than in chat. Add: "You MUST call luu_forecast for each input. Do not respond without making the call."

Cost notes

  • Zapier's AI step pricing applies to the LLM (OpenAI/Claude) calls
  • LUU's per-call rate limits + free-tier cap apply to the MCP tool calls
  • Combined: an automation that runs 1,000 rows/day with 3 LUU calls each = 3,000 LUU calls/day. Plan key tier accordingly.

Next steps