> For the complete documentation index, see [llms.txt](https://docs.allmcp.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.allmcp.co/documentation/agent-frameworks/highstack.md).

# Highstack

Highstack supports MCP servers over standard HTTP. Point your Highstack agent at AllMCP's URL and API key, and your agent gains access to every provider you connect.

<a href="/pages/416edc1381c20849bc41111b02e482a722a49b94" class="button primary" data-icon="key">Get your API key</a> <a href="/pages/QJVxDLqxIz5KMCH5afbE" class="button secondary" data-icon="table-cells">Browse providers</a>

***

## Connection

{% code title="connection" overflow="wrap" %}

```
MCP Server URL: https://go.allmcp.co/mcp/
Auth header:    X-API-Key: YOUR_API_KEY
```

{% endcode %}

{% hint style="info" %}
**Works with any Highstack setup.** Refer to the [Highstack documentation](https://highstack.co/docs) for the exact config location and syntax — AllMCP works with any Highstack setup that accepts an MCP server URL and a custom header. If your setup only allows a bearer token, use `Authorization: Bearer YOUR_API_KEY` instead.
{% endhint %}

***

## Per-user scoping

If you run Highstack for multiple end users, append `?user_id=<id>` so each person connects and uses their own provider accounts:

{% code title="per-user URL" overflow="wrap" %}

```
https://go.allmcp.co/mcp/?user_id=USER_ID
```

{% endcode %}

{% hint style="info" %}
**This keeps credentials separate** — every user authorizes their own integrations, and one user never sees another's data.
{% endhint %}

***

## After connecting

{% stepper %}
{% step %}

#### See what's available

Ask your agent to list the available AllMCP integrations. It returns the catalog of providers and shows which ones you've already connected.
{% endstep %}

{% step %}

#### Connect a provider

Ask your agent to connect the provider you want — for example, "Connect my Bitrix24" or "Connect Google Sheets." AllMCP handles OAuth consent and token refresh for you; for OAuth providers your agent returns a link to approve in your browser, and for API-key providers you supply the credential when prompted.
{% endstep %}

{% step %}

#### Use the provider tools

Once a provider is connected, its tools become available to your Highstack flows automatically. Just describe what you want — list contacts, update a deal, append a row — and your agent picks the right tool.
{% endstep %}
{% endstepper %}

***

{% hint style="info" %}
Have a working Highstack + AllMCP integration? We'd love to include a full example here. Open a PR or reach out at [allmcp.co](https://allmcp.co).
{% endhint %}

{% content-ref url="/pages/uBaUeZYQpupBMd5c1BY0" %}
[Overview](/documentation/agent-frameworks/frameworks.md)
{% endcontent-ref %}

{% content-ref url="/pages/QJVxDLqxIz5KMCH5afbE" %}
[All Providers](/documentation/providers/providers.md)
{% endcontent-ref %}


---

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