Connect
Optimize
Secure
MCP servers for Claude Code
The MCP Gateway
for Claude Code
Give Claude Code access to 270+ managed MCP servers. No auth hassle. Token-efficient by design. Security and governance built-in.
What is an MCP gateway?
MCP gateways are real-time integration infrastructure connecting AI
agents to the SaaS apps they need to use. They expose one MCP server
instead of many to the AI agent. They are built on the open Model Context Protocol (opens in new tab), and
are also called MCP aggregators.
MCP gateways use whatever communication protocol each MCP server requires
(stdio, SSE, streamable HTTP), maximize the action coverage agents can
call, and handle authentication, agent action scoping, tool-call
optimization, agent security, and tool-call observability.
StackOne's MCP gateway — SOC2, HIPAA, CCPA, and GDPR compliant — brings this infrastructure to 270+ pre-built SaaS integrations exposing 18,000+ actions, reachable from Claude Code, Claude Desktop, Cursor, or Goose through one URL.
Connect Claude Code
To All Your Apps via One MCP
Simplify your Claude Code MCP server setup
with the StackOne MCP gateway.
Coverage
270+ connectors.
18,000+ tested actions.
Every action is built and maintained by StackOne, tested against the live API, and updated when vendors change their endpoints.
Browse all connectors →
Auth & Governance
Auth & governance,
simplified.
StackOne handles OAuth, API keys, refresh, and scopes for every connector, giving enterprise IT full control through auth configs in a multi-tenant setup.
Agent Auth →
Performance
Agent context window,
managed.
Tool Discovery and Code Mode keep Claude Code's context lean — only relevant actions, no raw response noise. Sharper agents, lower token costs.
Tools Discovery →
Agent Security
Security,
built in.
Defender scans every MCP tool response for prompt injection in real time. Up to 97.44%¹ detection, 0.2% false positives. SOC2, HIPAA, CCPA, GDPR compliant.
Prompt Injection Defense →¹ Jayavibhav test, 65,000 samples.
Connect Claude Code
In 4 Steps
From auth config to first agent tool call in 5 minutes.
1
Run claude mcp add to install StackOne.
One CLI command. Available in your next Claude Code session.
Terminal
$ claude mcp add stackone \ --transport http \ "https://api.stackone.com/mcp/{...}" ✓ Added MCP server "stackone" ✓ 270+ tools available next session
2
Connect each SaaS integration in StackOne.
OAuth or API key per app, done once in your dashboard. Tokens stay server-side.
3
Scope agent actions.
Read-only, specific objects, or per-role exposure. Toggle from the StackOne dashboard.
Query events (enabled)
Get insight (enabled)
Read funnel (enabled)
Update dashboard (disabled)
Delete data (disabled)
4
Ask Claude in plain English.
StackOne maps your prompt to the right action in the right system. Done.
"Pull this week's PostHog drop-off funnel and post analysis to #growth on Slack."
Claude posthog_query
Completed
slack_send_message
Completed
channel: #growth
message: Trial-to-paid down 12% this week. Likely cause: pricing page change Tuesday.
Found a 12% trial-to-paid drop this week and posted analysis to #growth in Slack.
Anthropic Haiku 4.5
Unlock More Use Cases
with Claude Code
Supercharge Claude with your enterprise stack.
HR & People Ops View →
> Pull this week's Rippling new hires and surface their onboarding gaps in Notion.
Sales & CRM View →
> Forecast this quarter's pipeline from Microsoft Dynamics 365 and surface top expansion deals.
Connect StackOne MCP Gateway
to Any AI Agent.
Same 270+ MCP servers. Pick your client.
Frequently Asked Questions
Connecting Claude Code to the StackOne MCP gateway is one CLI command:
claude mcp add stackone --transport http "<your-gateway-url>". The gateway URL embeds your account ID and token as query parameters. Available in your next session and 270+ pre-built SaaS connectors are reachable through that single connection. Full walkthrough in the Claude Code setup guide.An MCP gateway is real-time integration infrastructure connecting AI agents to the SaaS apps they need to use. It exposes one MCP server instead of many to the AI agent, and handles authentication, agent action scoping, tool-call optimization, agent security, and tool-call observability. Also called an MCP aggregator.
Claude Code can access enterprise SaaS like Salesforce, Workday, HubSpot, Greenhouse, Zendesk, NetSuite, ServiceNow, Stripe, and Notion through the StackOne MCP gateway — 270+ pre-built connectors in total. New connectors ship continuously, and you can build custom ones with AI Integration Builder. See all connectors.
You'd connect Claude Code to one MCP server per app — each with its own setup, its own auth flow, and its own tool definitions sitting in your context. StackOne replaces those N connections with one gateway URL: 270+ apps reachable through a single connection, auth managed once in the dashboard, and tool definitions loaded only when relevant to the prompt.
Credentials sit at three layers: your StackOne API token (embedded in the gateway URL Claude Code stores after
claude mcp add), SaaS connector credentials (server-side in your StackOne dashboard), and per-user OAuth or session tokens (server-side, scoped per user). StackOne stores OAuth tokens and API keys, refreshes them automatically, and only exposes the actions you've authorized to the agent.Skip the StackOne MCP gateway when any of these is true:
- An existing first-party or third-party MCP server covers your apps, no tool extension needed
- You only use a handful of actions across a few apps
- You don't need multi-tenancy, per-user permissions, or per-action scoping
- Indirect prompt injection isn't a concern
- Your MCP provider already does tool discovery and server-side execution to keep the agent context lean
Connect All Your Apps to Claude Code.
One MCP gateway, 270+ pre-built SaaS connectors. Set up in 5 minutes.