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The LeadFuze MCP Server brings powerful contact and company enrichment capabilities to your Caylex AI agents, enabling them to perform email and LinkedIn-based data lookups for lead generation, sales prospecting, and marketing workflows. By connecting this server to your Caylex project, agents can enrich leads with detailed profile information sourced from email addresses or LinkedIn profiles, helping teams validate contacts and build richer prospect data. The server is designed as a read-only enrichment tool, meaning all operations are safe, non-destructive data retrievals against the LeadFuze API. This makes it well-suited for automated research workflows where agents need to qualify or augment lead data without modifying any records. Authentication is handled via a LeadFuze API key, which must be configured when adding the server to your Caylex project.
Prerequisites:
  • A valid LeadFuze account with API access enabled is required to authenticate this server.
  • An API key from your LeadFuze account must be provided as the authentication credential when adding this server in Caylex.
Important API details:
  • All tools are read-only and non-destructive — no data is written or modified through this server.
  • Input validation is enforced via schema checks, so malformed email addresses or LinkedIn URLs will be rejected before reaching the API.
  • No explicit rate limit information is documented in the source; consult your LeadFuze account plan for applicable API usage limits.

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Server Details

PropertyValue
TransportStreamable HTTP
Server TypeExternal
Endpointhttps://mcp.leadfuze.com/mcp
CategoriesSales Engagement, Sales & Marketing

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Authentication

This server supports the following authentication method:

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Header Authentication

This server authenticates via HTTP headers. During the server onboarding flow, you will be prompted to confirm the required headers. Note that you do not provide the values for the headers during the server on-boarding. Header values are provided by the users during the Auth Link flow.

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Getting Started

1

Add the server

Navigate to the Server Library and click on the New Server button. Find LeadFuze in the Caylex Catalog.
2

Server Onboarding flow

Go through the server onboarding flow.
3

Use in a project

Add the server to a project by configuring project connections. Its tools are now available to any agents connected to that project.
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Hunter

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LinkedIn Research

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Dropcontact

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References

https://github.com/leadfuze/mcp-server