mcp-leadmagic

# @pipeworx/leadmagic

Find a work email by name + company domain, via LeadMagic's B2B data API
(leadmagic.io). Every email returned is already SMTP-validated on
LeadMagic's side. Part of the `enrich-waterfall` finder rotation (fleet
#2860).

Part of [Pipeworx](https://pipeworx.io) — an MCP gateway connecting AI agents to 1743+ live data sources. This is an independent, unofficial integration — not affiliated with, endorsed by, or published by the upstream provider.

## Tools

- `leadmagic_find_email(first_name, last_name, domain, _apiKey)` — work
  email, employment verification, and company fields; a confirmed no-match
  is free on LeadMagic's own billing.

## Auth

BYO only. Pass your LeadMagic API key as `_apiKey` (header `X-API-Key`). Get
one at https://leadmagic.io. No platform key (D4).

## Data sources

- `https://api.leadmagic.io/v1/people/email-finder` — email finder.

## Verification notes (fleet #2860, 2026-10-08, no vendor key held)

- **Auth header + live endpoint confirmed by edge probe.** No-key POST to
  `/v1/people/email-finder` returned HTTP 401 with LeadMagic's own structured
  problem+json body naming `X-API-Key` (case-insensitive) or
  `Authorization: Bearer <key>` as the two accepted forms. This pack uses
  `X-API-Key`.
- **Response shape is from vendor docs only** (https://leadmagic.io/docs/api-reference/email-finder,
  read 2026-10-08):
  - hit: `{ email, status: "valid", credits_consumed: 1, message,
    employment_verified, company_name, company_industry, mx_provider }`
  - no match: `{ email: null, status: null, credits_consumed: 0, message,
    first_name, last_name, domain }`
  The no-match case is a fully-populated 200 with `email: null` — this
  pack decides hit-vs-miss on `email`, never the envelope, matching the
  waterfall's house rule (same trap findymail documents for its own API).
- **Not verified (no key held):** the exact set of `status` values beyond
  `"valid"` on a live call (docs only show the one example), and whether a
  malformed domain produces a 4xx or a clean no-match.

## Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

```json
{
  "mcpServers": {
    "leadmagic": {
      "url": "https://gateway.pipeworx.io/leadmagic/mcp"
    }
  }
}
```

### What this endpoint actually serves

`tools/list` at `https://gateway.pipeworx.io/leadmagic/mcp` returns the tools in the table
above **plus the shared Pipeworx meta-tools** — `ask_pipeworx`,
`discover_tools`, `search_within`, `remember`/`recall` and the rest of the
gateway-wide set. So the tool count you see is larger than this table: a
single-pack endpoint currently lists roughly 30 shared tools alongside the
pack's own. The connection's `initialize` response states its exact scope, and
is the authoritative answer for a given day.

This is deliberate, not multiplexing by accident. The meta-tools are what let a
scoped connection answer a question this pack does not cover — via
`ask_pipeworx`, which routes across the whole catalog — without you adding a
second MCP server. There is currently no way to mount a pack endpoint without
them; if the extra schemas cost you more context than the routing is worth,
connect to the full gateway once rather than to several pack endpoints.

Or connect to the full Pipeworx gateway to get every pack's tools listed
directly, instead of just this one's:

```json
{
  "mcpServers": {
    "pipeworx": {
      "url": "https://gateway.pipeworx.io/mcp"
    }
  }
}
```

Both URLs reach the same gateway and the same 1743+ data sources. The
only difference is which pack's tools are listed **directly**; `ask_pipeworx`
reaches all of them from either one.

## No MCP client? Call it over HTTP

This pack takes your own API key (`_apiKey`) — we don't front one for it, so there's no curl here that would run without it. Inspect any tool: `GET https://gateway.pipeworx.io/v1/tools/leadmagic_find_email`. Find one: `POST https://gateway.pipeworx.io/v1/tools/search_packs` with `{"query":"..."}`.

## Standalone (no gateway account)

This package also runs as a local stdio MCP server — no Pipeworx account, no
gateway round-trip:

```json
{
  "mcpServers": {
    "leadmagic": {
      "command": "npx",
      "args": ["-y", "@pipeworx/mcp-leadmagic"]
    }
  }
}
```

Or run it directly to confirm it starts:

```bash
npx -y @pipeworx/mcp-leadmagic
```

It speaks MCP over stdin/stdout and answers `initialize`/`tools/list`/`tools/call`
for **only** this pack's tools — none of the shared meta-tools the gateway
connection above adds. Same source, same tools, no ask_pipeworx routing.

## Using with ask_pipeworx

Instead of calling tools directly, you can ask questions in plain English —
this works on the pack endpoint above as well as on the full gateway:

```
ask_pipeworx({ question: "your question about Leadmagic data" })
```

The gateway picks the right tool and fills the arguments automatically.

## More

- [Docs and guides](https://pipeworx.io/docs)
- [pipeworx.io](https://pipeworx.io)

## License

MIT