Apollo vs ZoomInfo MCP servers
Both Apollo and ZoomInfo have official MCP servers. Apollo's server works in Claude, ChatGPT, Claude Code, Cursor and GitHub Copilot. It can change data. It uses credits on some tools. ZoomInfo's server works in Claude, ChatGPT, Claude Code, Cursor and GitHub Copilot. It can change data. It uses credits on some tools.
This page sets the facts side by side, each with its vendor source. It doesn't pick a winner: the right one is usually the tool your team already pays for.
How do the Apollo and ZoomInfo MCP servers compare?
| Fact | Apollo | ZoomInfo |
|---|---|---|
| Category | Prospecting & Lead Data | Prospecting & Lead Data |
| Hosted endpoint | https://mcp.apollo.io/mcp | https://mcp.zoominfo.com/mcp |
| Auth | OAuth 2.0 (master API key / X-Api-Key for headless) | OAuth 2.0 (Authorization Code with PKCE for user sign-in; Client Credentials for service accounts) |
| Works in Claude | YesSource: docs.apollo.io, checked 2026-10-16 | YesSource: docs.zoominfo.com, checked 2026-10-16 |
| Works in ChatGPT | YesSource: knowledge.apollo.io, checked 2026-10-16 | YesSource: gtm.ai, checked 2026-10-16 |
| Works in Claude Code | YesSource: docs.apollo.io, checked 2026-10-16 | YesSource: docs.zoominfo.com, checked 2026-10-16 |
| Works in Cursor | YesSource: knowledge.apollo.io, checked 2026-10-16 | YesSource: docs.zoominfo.com, checked 2026-10-16 |
| Works in GitHub Copilot | YesSource: docs.apollo.io, checked 2026-10-16 | YesSource: docs.zoominfo.com, checked 2026-10-16 |
| What it can change | Read + write creates and updates contacts and accounts; creates deals; adds and removes contacts in sequences (enrollment); creates and updates sequences and 7 moreSource: docs.apollo.io, checked 2026-10-16 | Read + write creates and updates audiences (lists) and their columns; loads records into audiences and sets cell values; creates or changes the organization's GTM context (admin only)Source: gtm.ai, checked 2026-10-16 |
| Credits | Some tools use credits Company search, company enrichment (single and bulk), company job postings, and people enrichment (single and bulk) use credits; people/contact search, CRM, sequence, email, task and analytics actions do not. Get conversation insights uses credits only if the conversation has AI insights.Source: docs.apollo.io, checked 2026-10-16 | Some tools use credits Data credits: Enrich Companies/Contacts (1 per new record, up to 10 per call), Enrich Company Signals (1 per new signal), Upsert Audience/Manage Audience Rows (1 per new matched record). AI credits: Account/Contact Research (most calls 5-15), Conversation Intelligence (at least 9), Audience Analysis (scales with audience). Search, Lookup, Find Similar/Recommended, GTM Context and audience browsing are free. Records enriched by the org in the past 12 months are free to re-enrich.Source: gtm.ai, checked 2026-10-16 |
| Plan required | FreeSource: knowledge.apollo.io, checked 2026-10-16 | Not confirmed |
| Setup | Self-serveSource: docs.apollo.io, checked 2026-10-16 | Self-serveSource: gtm.ai, checked 2026-10-16 |
| An admin must approve or enable the connection | Not confirmed | YesSource: gtm.ai, checked 2026-10-16 |
| Scopes or permissions can limit what it reaches | YesSource: knowledge.apollo.io, checked 2026-10-16 | Not confirmed |
| Individual tools can be turned off | Not confirmed | Not confirmed |
| MCP activity shows in an audit log | Not confirmed | Not confirmed |
| Endpoint status | Up · auth | Up · auth |
| Last verified | 2026-10-15 | 2026-10-16 |
| Official docs | docs.apollo.io | gtm.ai |
"Not confirmed" means the vendor's docs don't settle the question. It doesn't mean no.
What can each server do?
- Apollo: people/company search, enrichment, contacts & accounts CRUD, sequences, one-off email, lists, tasks, analytics
- ZoomInfo: company/contact search, company/contact enrichment, similar & recommended contacts, intent & scoops signals, audiences (GTM Studio) CRUD, account/contact research agents, conversation intelligence (Gong, ZoomInfo Chorus), GTM context
Which recipes use Apollo or ZoomInfo?
- Find lookalike accounts and enrich them (Apollo + Clay + HubSpot)
- Research a prospect, then add them to an Instantly campaign (Perplexity + Apollo + Instantly)
- Webinar or Typeform responses to enriched, routed leads (Typeform + Apollo + HubSpot)
- Single-threaded deal alert: find the missing signers and draft multi-threading intros (HubSpot + ZoomInfo)
- Hiring for the problem you solve: turn job posts into first lines and a lemlist campaign (PredictLeads + Apollo + lemlist)
- Event follow-up within 24 hours: enrich the attendee list, tier it and load tiered follow-ups (Airtable + Apollo + lemlist)
- Competitor customers: find companies on a competitor's product and open with what its own reviewers complain about (PredictLeads + G2 + Apollo)
More prospecting and data tools: see the full list.