Claude Prompt: Build an Event Invite List

Paste one prompt into Claude with LeadOcean connected and size your invite pool before you spend a single record. It works in any MCP client. Connect the server at https://api.leadocean.io/mcp first. Setup is on the MCP page.

The prompt

Build an invite list for a London dinner for marketing leaders.
Guests are VPs and directors of marketing at software companies
with 51 to 500 employees, based in London.
1. Call leadocean_list_enum_values for industry and pick the
   software development values.
2. Call leadocean_count_leads with seniority vp and director,
   jobFunction Advertising & Marketing, those industries,
   employeeRange 51-200 and 201-500, country GB and city London.
3. Tell me the count and the filters you used.
4. Do not call leadocean_search_leads until I say go.

What it resolves to

Enum values are exact strings, which is why step 1 looks them up. "Software" matches seven industry values, so the prompt keeps the two that describe a software company itself.

How many match

141 mailable people matched on 2 October 2026. Filters: seniority vp or director, jobFunction Advertising & Marketing, industry Software Development or Computer Software, employeeRange 51-200 or 201-500, country GB, city London.

Mailable means verified, catch_all_valid or catch_all, the count_leads default. The count is free. 126 are directors and 15 are VPs. For a 30-seat dinner, 141 is enough to invite in waves.

What you get back

Search rows carry the fields below. These are placeholder values, not real records.

Variations

• Swap city London for city Manchester and ask Claude to count again before searching.
• For a founder meetup, use seniority founder, drop jobFunction and set employeeRange to 11-50.
• For a virtual event, drop city, keep country GB and add country IE.

Records it spends

The count and enum lookups are free. leadocean_search_leads costs 1 record per person returned, so a limit of 30 costs 30 records. Free gives you 1,000 records one-off with no card. Pro is $499 a month. See pricing.

Related prompts

• Build a list of podcast guests
• Find marketing directors at SaaS companies with 51-200 staff
• Find VPs of sales at SaaS companies with 51-200 staff

The wider method is in build a lead list in Claude, and the webinar walks through a 5,000-lead build. More prompts live in the prompts hub.