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Connect to everything your agents need, without writing the infrastructure to get there.

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Enterprise-grade controls to ensure your agent always meets security & compliance standards.

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Maximise agent efficiency – faster responses, increased accuracy, fewer tokens used.

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StackOne
Connectors
Connect

Connect to everything your agents need, without writing the infrastructure to get there.

Secure

Enterprise-grade controls to ensure your agent always meets security & compliance standards.

Optimize

Maximise agent efficiency – faster responses, increased accuracy, fewer tokens used.

Use-Cases
Pricing
Book Demo Start Free

MCP Gateway

MCP Gateway
for Perplexity Comet

One MCP gateway to connect Perplexity Comet to 470+ enterprise SaaS apps. No auth hassle. Token-efficient by design. Security and governance built-in.

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What is an MCP gateway?

An MCP gateway (also called an MCP aggregator) is a single endpoint that connects an AI agent to multiple MCP servers via the open Model Context Protocol (opens in new tab). Some gateways act as proxies, routing traffic to MCP servers customers operate themselves. Others provide the underlying MCP servers as a managed service.

StackOne is the managed kind. We provide pre-built MCP servers for 470+ enterprise SaaS apps, including ones with no official MCP server today. For each app you connect, StackOne provides the MCP protocol layer, the SaaS API integration, action coverage, and the auth orchestration framework. Authentication is configured per app per organization — your team registers OAuth credentials with the SaaS provider, links them in StackOne, and end users then authorize access through that flow. Once set up, the agent reaches every connected app through one URL, with token storage, refresh, and per-user scoping handled by StackOne.

StackOne's MCP gateway — SOC2, HIPAA, CCPA, and GDPR compliant — bundles 470+ pre-built SaaS integrations exposing 28,000+ actions, all reachable from your Comet assistant through one URL.

Act across all your apps
from inside Comet

One MCP gateway, every enterprise SaaS your Comet assistant
could ever need to act on.

Coverage

470+ connectors.
28,000+ 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

Trust

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 your Comet assistant's context lean — only relevant actions, no raw response noise. Sharper agents, lower token costs.

Tools Discovery

Security

Agent 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 Perplexity Comet
to more apps in 4 steps

From auth config to first agent tool call in 5 minutes.

1

Add StackOne as a Custom MCP connector in Perplexity.

In your Perplexity account (Pro / Max / Enterprise), open Settings → Connectors → + Custom connector → Remote, paste the StackOne gateway URL, pick auth, and click Add. Available immediately to your Comet assistant.

Settings → Connectors

Custom connector — Remote

Name
StackOne Gateway
MCP Server URL
https://api.stackone.com/mcp/{...}
Authentication
OAuth
Add
View Perplexity MCP changelog (opens in new tab)
2

Connect each SaaS integration in StackOne.

OAuth or API key per app, done once in your dashboard. Tokens stay server-side.

intercom
workday
greenhouse
stripe
tableau
Browse all connectors
3

Scope agent actions.

Read-only, specific objects, or per-role exposure. Toggle from the StackOne dashboard.

Search documents (enabled)
List records (enabled)
Read related (enabled)
Update record (disabled)
Delete record (disabled)
Agent Auth
4

Ask Comet in plain English.

StackOne maps the assistant's tool call to the right action in the right system. Done.

"Summarise this week's open Intercom tickets and prep a follow-up brief in the assistant."

Comet
intercom_list_conversations
Completed
linear_list_issues
Completed
filter: linked to support tickets
team: Product
result: 8 issues open

24 open Intercom tickets, 8 linked to active Linear issues. Brief ready in the Support Triage assistant thread.

Connect Comet to
any Enterprise MCP server

One MCP gateway, 470+ pre-built SaaS connectors Comet can act on right away.

Need another connector? Build one with the AI Connector Builder

Get Comet
to do more across your stack

Cross-app workflows your Comet assistant now runs in seconds instead of click-throughs.

Customer Support & Success

> Summarise this week's Zendesk tickets and prep the response plan in Comet's assistant.

IntercomSurveyMonkeyFreshserviceServiceNowFreshdeskGorgiasDiscourseDixa
HR, Recruiting & People

> Pull Greenhouse candidates in offer stage and brief Comet on each profile.

JobAdderVincereSmartRecruitersAshbyManatalFactorialHiBobSAP SuccessFactors
Finance, Billing & Ops

> Reconcile Stripe MRR against the NetSuite GL for the monthly close.

KlaviyoStripeMagentoSquareBigCommerceShopifyEventbriteWooCommerce
Data, BI & Analytics

> Pull a Databricks query into a Tableau-ready table from Comet's assistant.

SmartsheetTableauSurveyMonkeyMicrosoft ExcelQlikSnowflakeZoomInfoChartHop
Explore more AI agent use cases

Connect any Enterprise AI Agent
to the StackOne MCP Gateway

Same 470+ MCP servers. Same agent context. Pick yours.

Notion AI Agent
Glean
Microsoft 365 Copilot
Atlassian Rovo
ServiceNow Now Assist
SAP Joule
IBM watsonx Orchestrate
Snowflake Cortex
Databricks Agent Bricks
AWS Bedrock AgentCore
Google Vertex AI
Intercom Fin
Zendesk
Retool Agents
Cohere North

Frequently Asked Questions

Custom Remote MCP connectors went GA on Perplexity Pro, Max, and Enterprise on March 13, 2026, and Comet consumes them through Perplexity's account-level connector layer. Setup: sign in at perplexity.ai (Pro/Max/Enterprise), open Settings → Connectors → + Custom connector → Remote, paste the StackOne gateway URL, pick OAuth / API key / None for auth, accept the disclaimer, and click Add. The connector is then callable from inside Comet's assistant pane and Perplexity Computer. 470+ pre-built SaaS connectors are reachable through that single MCP server. Full walkthrough in the Perplexity changelog. Available on Pro, Max, and Enterprise plans.
An MCP gateway (also called an MCP aggregator) is a single endpoint that connects an AI agent to multiple MCP servers via the Model Context Protocol. Some gateways route traffic to MCP servers customers operate themselves; others provide the MCP servers as a managed service. StackOne is the managed kind — we provide pre-built MCP servers for 470+ enterprise SaaS apps, including ones with no official MCP server today. Authentication is configured per app per organization: your team registers OAuth credentials with the SaaS provider, links them in StackOne, and end users authorize access through that flow. Once set up, the agent reaches every connected app through one URL.
You can connect Comet to 470+ live MCP servers through StackOne — one managed MCP server for every enterprise app in the catalog, spanning CRM, HRIS, ATS, ticketing, finance, and more (Salesforce, Workday, Greenhouse, ServiceNow, NetSuite, HubSpot, and Zendesk among them). Each is reachable through the single gateway URL, so you add them all with one connection instead of wiring up servers app by app. Browse and search the full list in the directory on this page, or build one with the AI Connector Builder.
Perplexity ships native app connectors covering Gmail, Slack, Notion, GitHub, Linear, Salesforce, HubSpot, Snowflake, and a handful of others — but the long tail of operational SaaS is on you. StackOne adds the other 470+ — every app reachable through one Custom connector instead of one per app, 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 configured in Perplexity Settings → Connectors, governed by your Perplexity account), 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:
  • Perplexity's first-party connectors (Gmail, Slack, Notion, GitHub, Linear, Salesforce, HubSpot, Snowflake) cover your apps
  • 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 Comet.

One MCP gateway, 470+ pre-built SaaS connectors. Set up in 5 minutes.

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