generated: '2026-08-13'
method: searched
source: https://docs.zoominfo.com/docs/connect-to-zoominfo-mcp.md
provider: ZoomInfo
providerId: zoominfo
name: ZoomInfo MCP Server
status: published
description: ZoomInfo ships an official, hosted Model Context Protocol server that exposes the GTM Intelligence
  surface (company/contact search and enrichment, intent, scoops, news, audiences and agentic research)
  to MCP clients. The endpoint is Streamable HTTP and is gated by OAuth 2.0 against ZoomInfo's Okta tenant,
  so anonymous tools/list is rejected.
deployment:
  mode: both
  endpoint: https://mcp.zoominfo.com/mcp
  install: npx -y mcp-remote@0.1.38 https://mcp.zoominfo.com/mcp 46818 --static-oauth-client-metadata
    "{\"scope\":\"openid profile email offline_access zi_api zi_mcp api:data:mcp\"}"
  package: https://github.com/Zoominfo/zoominfo-mcp-plugin
  auth: oauth
  verified: probed
  probe_prior: (never probed)
  probe: gated
  probe_why: RFC 9728 challenge on the MCP path only
  checked: '2026-09-11'
  source: claimed-backlog re-probe 2026-09-11
deployment_evidence:
  remote:
    note: POST {"jsonrpc":"2.0","id":1,"method":"tools/list"} to the endpoint returns HTTP 401 with a
      WWW-Authenticate Bearer challenge naming the protected-resource metadata document, which is the
      MCP spec's own auth handshake. The server is live; the tool list is auth-gated, not absent.
    url: https://mcp.zoominfo.com/mcp
    http_status: 401
    www_authenticate: Bearer resource_metadata="https://mcp.zoominfo.com/.well-known/oauth-protected-resource"
    error_code: ZI0001
    fetched: '2026-08-13'
  local_stdio:
    note: The first-party plugin repo registers the SAME hosted endpoint two ways — direct Streamable
      HTTP for clients that complete OAuth natively (.mcp.json), and an mcp-remote stdio bridge for clients
      that cannot (mcp.json). The stdio path is a bridge to the remote server, not a second server.
    source: https://github.com/Zoominfo/zoominfo-mcp-plugin
transport: streamable-http
authorization:
  type: oauth2
  issuer: https://okta-login.zoominfo.com/oauth2/default
  authorization_endpoint: https://mcp.zoominfo.com/oauth/authorize
  token_endpoint: https://okta-login.zoominfo.com/oauth2/default/v1/token
  registration_endpoint: https://mcp.zoominfo.com/oauth/register
  revocation_endpoint: https://okta-login.zoominfo.com/oauth2/default/v1/revoke
  dynamic_client_registration: true
  pkce:
  - S256
  grant_types:
  - authorization_code
  - refresh_token
  scopes:
  - openid
  - profile
  - email
  - offline_access
  - zi_api
  - zi_mcp
  - api:data:mcp
  metadata:
    oauth_authorization_server:
      url: https://mcp.zoominfo.com/.well-known/oauth-authorization-server
      http_status: 200
      file: well-known/zoominfo-mcp-oauth-authorization-server.json
    oauth_protected_resource:
      url: https://mcp.zoominfo.com/.well-known/oauth-protected-resource
      http_status: 200
      file: well-known/zoominfo-mcp-oauth-protected-resource.json
clients_documented:
- client: Claude Code
  method: claude mcp add --transport http zoominfo https://mcp.zoominfo.com/mcp
- client: Claude Code (plugin)
  method: claude plugin install zoominfo@claude-plugins-official
- client: OpenAI Codex
  method: official Codex plugin or custom MCP route
- client: Cursor
  method: mcp-remote stdio bridge (native client cannot complete this server's OAuth discovery)
- client: Claude.ai / Claude Desktop / ChatGPT
  method: connector / custom MCP integration
policy:
  model_training: ZoomInfo prohibits data accessed through MCP from being used for AI model training;
    the docs require model training to be disabled in the client before connecting.
  entitlement: A ZoomInfo license (GTM.ai self-serve or Enterprise) is required. Plan limits, API rate
    limits and credits apply to MCP usage exactly as they do to REST.
tools:
  note: Tool names are taken from ZoomInfo's own published surfaces — the Available MCP Tools documentation
    page, the tool identifiers hard-coded in the first-party gtm-ai-cli source (src/commands/*.ts calling
    mcpCall('<tool>')), and the tool names invoked by ZoomInfo's own published Agent Skills. Input schemas
    are NOT recorded because live tools/list requires an authenticated OAuth token.
  schemas_available: false
  schemas_note: Input schemas require authenticated MCP introspection; not captured.
  count: 23
  naming_note: The docs table names tools in Title Case ("Search Companies"); the CLI source and the Agent
    Skills invoke them in snake_case ("search_companies"). Where a tool appears ONLY in the docs table,
    the snake_case identifier below is marked unconfirmed rather than asserted.
  data_tools:
  - name: search_companies
    credits: free
    description: Find companies by firmographic criteria.
  - name: search_contacts
    credits: free
    description: Find contacts by role
    company: null
    or signal.: null
  - name: enrich_companies
    credits: bulk-data
    description: Retrieve full firmographic details for up to 25 companies.
  - name: enrich_contacts
    credits: bulk-data
    description: Retrieve full contact details for up to 25 contacts.
  - name: lookup
    credits: free
    description: Returns valid filter values (industries, regions, job functions).
  - name: find_similar_companies
    credits: free
    description: Find companies similar to a given company.
  - name: find_similar_contacts
    credits: free
    description: Find contacts similar to a given contact.
  - name: get_recommended_contacts
    credits: free
    description: Find outreach-ready contacts for a specific account.
  - name: search_intent
    credits: free
    description: Discover companies showing buyer intent signals.
  - name: enrich_intent
    credits: bulk-data
    description: Retrieve intent signals for a specific company.
  - name: search_scoops
    credits: free
    description: Discover companies based on real-world business events.
  - name: enrich_scoops
    credits: bulk-data
    description: Retrieve business-event scoops for a specific company.
  - name: enrich_news
    credits: bulk-data
    description: Retrieve categorized news coverage for a specific company.
  - name: get_gtm_context
    credits: free
    description: Retrieve the user's role and GTM context for the organization.
  - name: enrich_company_signals
    credits: bulk-data
    description: Batched news + scoops + intent signals for up to 10 company IDs (used by the score-accounts
      and score-leads skills).
  - name: browse_engagements
    credits: free
    description: List meetings/emails for an account; requires a connected calendar, email or meeting
      integration.
  - name: browse_audiences
    name_confirmed: false
    documented_as: Browse Audiences
    credits: free
    description: List and search your GTM Studio audiences.
  - name: get_audience
    name_confirmed: false
    documented_as: Get Audience
    credits: free
    description: View an audience's columns and preview its rows.
  context_agent_tools:
  - name: account_research
    credits: ai-action
    description: Generate a comprehensive intelligence briefing for a company.
  - name: contact_research
    credits: ai-action
    description: Generate a comprehensive intelligence briefing for a contact.
  - name: update_gtm_context
    credits: ai-action
    description: Create or update GTM context by synthesizing unstructured content into structured configuration.
  - name: conversation_intelligence
    credits: ai-action (~9 credits minimum per call)
    description: Deep-read a single engagement transcript; requires at least one connected meeting or
      email source.
  other_tools:
  - name: submit_feedback
    credits: free
    description: Submit feedback on tool results (exposed via `gtm feedback submit`).
docs:
  connect: https://docs.zoominfo.com/docs/connect-to-zoominfo-mcp.md
  available_tools: https://docs.zoominfo.com/docs/available-mcp-tools.md
  plugin_repo: https://github.com/Zoominfo/zoominfo-mcp-plugin
  skills: skills/_index.yml