Fuse MCP server

Prospecting, enrichment, buying signals and outreach for your AI assistant.
fuseai.com · Docs · Tool reference

Fuse is a B2B sales platform used by more than 1,000 companies. The Fuse MCP server lets Claude, Cursor, VS Code and other MCP clients run the whole prospecting workflow from one request: find people and companies, enrich contact details, watch for buying signals, research accounts, and create email and LinkedIn campaigns.

It is a hosted server. There is nothing to install and no API key to copy. You sign in with your Fuse account, and every action runs in your own workspace.


URL	`https://mcp.fuseai.com`
Transport	Streamable HTTP
Auth	OAuth 2.1 with dynamic client registration and PKCE, scope `mcp:tools`
MCP Registry	`com.fuseai/fuse`

Try it

Find US SaaS companies that raised a Series A in the last 30 days, get the Head of Sales at each, and draft a congratulations email.

Build a list of 200 VPs of Marketing at London fintechs with 50-500 employees, with emails and phone numbers.

Alert me when a target account posts a RevOps or sales ops job.

Write a 3-step personalised email sequence for this list and schedule it to start Monday.

Prep me for my call with Sarah Chen at Acme: her background, company news and our past emails.

Connect

You need a Fuse account. Sign up free, no waiting list.

Claude (claude.ai and Claude Desktop)

Settings → Connectors → Add custom connector, then enter https://mcp.fuseai.com and sign in.

Claude Code

claude mcp add --transport http fuse https://mcp.fuseai.com

Then run /mcp in Claude Code and choose fuse to sign in.

Or install the plugin, which adds the server plus a skill that teaches Claude how to use Fuse safely:

/plugin marketplace add fuse-ai-mcp/fuse
/plugin install fuse@fuseai

Cursor

Add to ~/.cursor/mcp.json (or .cursor/mcp.json in a project):

{
  "mcpServers": {
    "fuse": {
      "url": "https://mcp.fuseai.com"
    }
  }
}

Cursor will prompt you to sign in the first time a Fuse tool is used.

VS Code (GitHub Copilot)

code --add-mcp '{"name":"fuse","type":"http","url":"https://mcp.fuseai.com"}'

Or add to .vscode/mcp.json:

{
  "servers": {
    "fuse": {
      "type": "http",
      "url": "https://mcp.fuseai.com"
    }
  }
}

Antigravity (App and CLI)

agy plugin install https://github.com/fuse-ai-mcp/fuse

The plugin adds the Fuse MCP server and skill. Sign in to Fuse in your browser when the server first connects.

Gemini CLI

gemini extensions install https://github.com/fuse-ai-mcp/fuse

Any other MCP client

Add a remote server with URL https://mcp.fuseai.com and transport Streamable HTTP. Leave authentication to OAuth: the client registers itself and opens a browser sign-in. Don't add an API key or Authorization header. Agents can follow llms-install.md.

What it can do

Search people and companies with natural-language or structured filters
Enrich contacts with verified work emails and phone numbers from 40+ data providers
Lists: build, import, filter, add AI research columns, export and sync to your CRM
Signals: monitor job changes, hiring, funding, headcount growth, website visitors and LinkedIn activity
Research: account and contact research, web search and meeting prep
Outreach: generate and run multi-step email, LinkedIn and calling campaigns, and work your inbox

See the tool reference for the full list.

Safety

Campaigns are created as drafts. Nothing is sent until you explicitly launch it.
Searches, enrichment and research use your Fuse credits. Your assistant can check your balance and prices first.
Access is scoped to your own Fuse workspace through OAuth.

What's in this repo

This repo holds configuration only. The server itself is hosted by Fuse.

File	For
`server.json`	Official MCP Registry entry
`.claude-plugin/`, `.mcp.json`	Claude Code plugin and marketplace
`plugin.json`, `mcp.json`	Agent Plugins format (Cursor, Kiro, Copilot)
`.antigravity-plugin/`, `mcp_config.json`	Antigravity plugin (App and CLI)
`gemini-extension.json`, `GEMINI.md`	Gemini CLI extension
`skills/fuse/SKILL.md`	Skill that teaches agents how to use Fuse
`llms-install.md`	Install steps for agents such as Cline

Support

Docs: https://docs.fuseai.com/mcp/connect
Email: support@fuseai.com
Privacy policy · Terms of service

License

The configuration files in this repo are released under the MIT License. Use of the Fuse service is subject to the Fuse terms of service.

fuse

Documentation