How to Use Vibe Prospecting in Claude: MCP Setup Guide (2026)

Vibe prospecting with Claude means connecting an MCP server to Claude and running B2B research, lead finding, and account enrichment entirely from chat — no spreadsheets, no tab switching, no manual exports.

The most talked-about tool for this is Explorium's Vibe Prospecting — an MCP server that gives Claude access to Explorium's proprietary database of 150M+ companies and 800M+ contacts.

This guide covers the full setup for Claude.ai, Claude Code, and Cursor, then walks through building a lead list, enriching contacts, and researching accounts. It also covers where Vibe Prospecting falls short — and when SyncGTM's public MCP is the better tool for the job.

What Is Vibe Prospecting?

Vibe Prospecting is an MCP server built by Explorium that exposes their B2B data platform inside Claude and other Model Context Protocol-compatible AI agents.

The official Vibe Prospecting docs describe the MCP server URL as https://vibeprospecting.explorium.ai/mcp. Authentication is OAuth-only — no API key is required.

Once connected, Claude can call Vibe Prospecting tools to search Explorium's database of 150M+ companies and 800M+ contacts, pull company signals (funding events, job openings, tech stack changes), and enrich records with firmographic data — all without leaving the chat window.

The name “vibe prospecting” refers to the broader practice, not just Explorium's product. Any MCP server that gives an AI agent live B2B data access enables the same workflow. Explorium branded their product “Vibe Prospecting” to capture that category name early.

How to Set Up Vibe Prospecting in Claude

Step 1: Connect via Claude.ai

Claude.ai supports remote MCP connectors natively through the Connectors menu.

1. Open claude.ai and go to Settings → Connectors.
2. Click Add custom connector.
3. Paste https://vibeprospecting.explorium.ai/mcp as the connector URL and click Save.
4. An OAuth browser window opens. Sign in with your Explorium or Vibe Prospecting account and click Authorize.
5. In a new chat, open the tools menu and toggle Vibe Prospecting on.

If you already have an Explorium account, the OAuth flow reuses your existing session. If not, you will need to create a Vibe Prospecting account first at vibeprospecting.ai.

Step 2: Connect via Claude Code

Claude Code uses the same remote MCP server but connects via the CLI.

After running /mcp, Claude Code opens an OAuth window in your browser. Approve access and the Vibe Prospecting tools load automatically.

The tools are identical whether you connect via claude.ai or Claude Code. Credit costs are the same across both clients.

Step 3: Connect via Cursor

For Cursor, add the server to your MCP config file.

Restart Cursor after saving. On first use, Cursor opens an OAuth prompt to authorize your Explorium account.

Building a Lead List with Vibe Prospecting

Once connected, you can build a lead list in plain English. Vibe Prospecting searches Explorium's company and contact database and returns structured results inside the Claude conversation.

Search for Target Companies

Describe your ICP and ask Claude to search. A working prompt:

Claude calls the Vibe Prospecting entity search tool and returns live results. Every real tool call shows a visible tool-use block in the Claude UI before the result appears. If you see a table with no tool-use block, Claude answered from its training data — repeat the prompt with: “Use Vibe Prospecting — do not answer from memory.”

Find Decision-Makers

Chain a contact search onto the company results in the same conversation:

Claude chains the contact lookup to the company domains already in context. No CSV export is needed between steps.

Vibe Prospecting returns contact records from Explorium's proprietary database. Coverage is strongest for US and EU companies with more than 50 employees. Smaller companies and newer hires may return thinner results.

Enriching Contacts with Vibe Prospecting

If you already have a list of company domains or contact names, Vibe Prospecting can fill in firmographic and demographic data from Explorium's database.

Vibe Prospecting also supports contact-level enrichment — job title, seniority, department, LinkedIn URL — for existing names you pass into the conversation.

For deeper enrichment — work email addresses, direct phone numbers, and multi-provider waterfall — Vibe Prospecting does not cover those. Claude enrichment with SyncGTM handles email finding and verification from 50+ providers through a single MCP connection.

Researching Accounts from Chat

Account research is where Vibe Prospecting is strongest. Explorium aggregates signals across 18+ event categories — funding, hiring velocity, tech stack changes, leadership changes, product launches — and surfaces them in a single call.

Claude returns a structured brief from Explorium's signal database. This replaces 20–30 minutes of manual research across LinkedIn, Crunchbase, and company career pages.

For account research specifically, Vibe Prospecting outperforms most alternatives due to Explorium's proprietary signal coverage. The weakness is that the research brief is returned as text inside the conversation — exporting it to a structured format requires an additional prompt.

Credit Usage Per Call

Explorium charges per record enriched, not per session or per API call. Their published range is $0.03–$0.20 per record depending on data depth.

Explorium does not publish per-tool credit costs in their docs — the ranges above come from their published pricing page and the benchmark post on their blog. Verify your actual spend in the Explorium dashboard after your first runs.

SyncGTM publishes exact per-tool costs: find_companies costs 0.2 credits per company returned, find_work_email costs 1 credit per contact. Use the SyncGTM credits estimator to model a full workflow before you run it.

Export Limits

Vibe Prospecting does not offer a direct in-chat CSV export. When you ask Claude to “export this as a CSV,” Claude writes a formatted table in the conversation or generates a downloadable link — it does not push to your CRM automatically.

The Vibe Prospecting documentation notes that exports in some clients (like Hermes) return a download link rather than inline data. In Claude.ai and Claude Code, the data is returned as structured text that you can copy-paste or ask Claude to reformat.

To push enriched data directly into HubSpot, Salesforce, or Pipedrive, you need to add a CRM MCP alongside Vibe Prospecting. Claude can then pass Vibe Prospecting output directly into a CRM create-record call in the same conversation.

The B2B Database MCP guide covers how to chain multiple MCP servers — data source, enrichment, and CRM — inside one Claude workflow.

Limitations of Vibe Prospecting

Vibe Prospecting is genuinely useful for account research and company-level enrichment. These are the real limits:

• No work email finding.Vibe Prospecting returns contact names, titles, and LinkedIn URLs from Explorium's database. It does not return verified work email addresses. If your end goal is a cold email sequence, you need a separate email-finding tool.
• No email verification.Even if Explorium's database includes an email field for some contacts, there is no built-in email verification step. Sending to unverified emails from a cold domain is high-risk for deliverability.
• Single provider.Vibe Prospecting pulls exclusively from Explorium's data. If Explorium does not have a record, the call returns nothing. There is no waterfall fallback to a second or third provider.
• Opaque per-tool credit costs.Explorium publishes a general per-record range but not exact costs per tool action. This makes it difficult to model a workflow's cost before running it at scale.
• No bulk export tool. Results are returned inside the conversation. Structured export to CSV or CRM requires either a separate MCP connection or a manual copy-paste step.

A Better Way: SyncGTM MCP for B2B Prospecting

SyncGTM publishes a free public MCP server that adds the full prospecting workflow to Claude, Cursor, and any other MCP-compatible agent.

The connection is the same one-step setup: https://api.syncgtm.com/mcp — paste it into Claude.ai's custom connector field or run claude mcp add --transport http syncgtm https://api.syncgtm.com/mcp in Claude Code.

What SyncGTM Adds That Vibe Prospecting Does Not Cover

The SyncGTM Workflow in Claude

The end-to-end workflow for a verified lead list from SyncGTM looks like this inside one Claude conversation:

Total cost for 25 verified leads: about 37.5 SyncGTM credits (5 for companies, 5 for one contact per company, 25 for emails found, 2.5 for verification). See the full workflow in the lead generation with Claude guide.

Pros and Cons

Conclusion

Vibe Prospecting is the fastest way to get Explorium's B2B signal data inside Claude. The setup takes under 5 minutes, the account research quality is strong, and the conversational workflow removes most of the manual lookup work.

Where it falls short is the email layer. If your end goal is a cold outreach list with verified work emails, you will need a second MCP. SyncGTM's public MCP fills that gap — it adds find_work_email, verify_email, and waterfall enrichment from 50+ providers alongside whatever other MCPs you have connected.

For teams already on Explorium, Vibe Prospecting is the right starting point. For teams that want a full prospecting-to-verified-email workflow in one MCP, start with SyncGTM.