> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gravitygtm.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Connect Helium's MCP server to Claude, Cursor, and more

> Connect Helium's Streamable HTTP MCP server to Claude Code, Cursor, and other MCP clients so agents can call all 8 fundraising-research tools with your API key.

Helium runs a [Model Context Protocol](https://modelcontextprotocol.io)
server alongside the REST API, exposing the same capabilities as MCP tools
— same validation, same credit pipeline, same prices — so an agent can call
them directly without you writing any HTTP glue.

## Endpoint

```
https://lite.gravitygtm.com/api/mcp-helium/mcp
```

Note the `-helium` in the path — this is a **separate MCP server from
Horizon's** (`/api/mcp/mcp`), though the same Bearer API key authenticates
both. See [Authentication](/helium/authentication).

## Add to Claude Code

```bash theme={null}
claude mcp add --transport http gravity-helium https://lite.gravitygtm.com/api/mcp-helium/mcp \
  --header "Authorization: Bearer YOUR_KEY"
```

## Other MCP clients

Any client that supports a remote Streamable HTTP MCP server (Cursor, and
others) can connect the same way: point it at
`https://lite.gravitygtm.com/api/mcp-helium/mcp` and set an
`Authorization: Bearer YOUR_KEY` header.

A session with a missing or invalid key is rejected before any tool is
reachable, same as a REST call with a bad key.

## Available tools

| Tool                       | Description                                                                                                                                                                                                                                                                                       |
| -------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `get_fundraising_profile`  | Fetch the stored fundraising fit profile for this account. Free.                                                                                                                                                                                                                                  |
| `set_fundraising_profile`  | Set or update the fundraising fit profile (`startup_equity` or `fund_lp` mode). Free.                                                                                                                                                                                                             |
| `search_investors`         | Search for investors/LPs matching the stored profile — VC funds and angels for a founder, or family offices, HNW individuals, recently-exited founders, and institutional allocators for a fund. `include_competitor_lookalikes` also surfaces funds that backed the profile's known competitors. |
| `enrich_investor`          | Deep-dive one investor/fund/LP by LinkedIn URL, or by fund name/domain.                                                                                                                                                                                                                           |
| `research_company`         | Snapshot a competitor or adjacent company — what they do, growth signals, and who funded them.                                                                                                                                                                                                    |
| `find_lookalike_investors` | Research who funded up to 3 named competitor companies and surface those funders as new candidate investors, tagged "lookalike via {company}." Defaults to the profile's `known_competitors` when `company_names` is omitted (startup\_equity profiles only). 35 credits per call.                |
| `import_network`           | Import a LinkedIn connections CSV export to enable warm-path matching in `search_investors`. Free.                                                                                                                                                                                                |
| `start_sequence`           | Start a 4-touch Gmail outreach sequence to an investor/LP by email. Requires Gmail connected from the dashboard first. Free.                                                                                                                                                                      |

Each tool's inputs mirror its REST equivalent's request body, and each
billed call debits credits the same way a REST call would — see
[Credits & Pricing](/helium/credits-and-pricing) for exact costs, and the
**API Reference** section in the sidebar for full parameter details.

<Warning>
  `start_sequence` schedules the sequence and drafts each touch on the same
  cadence described in [Using Helium in Slack](/helium/slack-usage#automated-outreach-sequences),
  but a sequence started via MCP or REST (rather than Slack) has nowhere to
  post its Approve/Edit/Skip card — there's no dashboard review UI yet.
  Until one exists, only start sequences from Slack, where every touch gets
  a real approval card before anything sends.
</Warning>

Tool results are returned as JSON text content. A failed call comes back as
an MCP tool error carrying the same error body a REST call would return —
see [Errors & Rate Limits](/helium/errors-and-rate-limits).