OMNI MCP 0.8.2
BY
● LIVE  /  RESEARCH PREVIEW  /  ONE CONNECTION · 500+ TOOLS FOR YOUR AGENT

One Connection. Every App. Your Agent.

OMNI is a single MCP connection that gives your agent — Claude, Cursor, Codex, and friends — working tools for Gmail, Slack, GitHub, Google Calendar, Notion, and 40+ more apps. Instead of adding a server per app, you add one, and your agent finds the right tool when it needs it.

▸ Add it to your agent
▸One connection, 500+ tools
Add OMNI once. Your agent automatically finds the right tool for each task — no per-app setup, ever.
▸No API keys, just sign in
The first time your agent needs an app, you get a sign-in link. Click it, approve, and the task continues.
▸You stay in control
Ask "which apps are connected?" any time to see your connected apps — and disconnect any of them with a word.

Add It To Your Agent

≈ 1 minute · pick yours
1In a chat, click the + button → Plugins. Click + again and choose From repo.
2
arcadeai-labs/omnimcp
3Start a chat and ask away.
1
/plugin marketplace add arcadeai-labs/omnimcp
2
/plugin install arcade@arcade
3That's it — you get the tools plus /arcade commands for running tasks and managing apps.
1▸ Add to Cursor
2Approve the prompt that opens in Cursor, and you're connected.
1▸ Install in VS Code
2Approve the prompt that opens in VS Code, and you're connected.
1
opencode plugin opencode-arcade
2
opencode mcp auth arcade
3Run both in your terminal, restart OpenCode, and sign in when prompted.
1
codex mcp add arcade --url https://omni.arcade.dev/mcp
2Run in your terminal, then restart your Codex session.
1Point any MCP-compatible client at this endpoint, named arcade:
2
https://omni.arcade.dev/mcp

Then Just Ask

Summarize my unread Slack messages
What's on my calendar today?
Draft a reply to the latest email from my manager
List my open GitHub pull requests
Which apps are connected?
Find a time Sarah and I are both free next week
First time using an app? Your agent will hand you a sign-in link. Click it, approve access, and it picks the task right back up. No API keys, no configuration.

Works With Your Apps

40+ apps · 500+ tools

Under The Hood

For the curious▸

What is OMNI

OMNI is an MCP server preloaded with 500+ optimized, pre-tested tools — Google Workspace, Microsoft 365, Slack, GitHub, Linear, and the rest of the daily-driver SaaS — all on a single connection.

Instead of loading every tool definition into the model up front, your agent sees three meta-tools and pulls in exactly the tools a task requires, ranked by semantic relevance.

The plumbing disappears: no pickers, no narration, no asking which integration to use. OMNI handles discovery, execution, and the OAuth handshake underneath.

Progressive Disclosure

AGENT CONTEXT SEES OMNI · MCP SURFACE SEARCH() CALL() AUTHORIZE() GMAIL SLACK GITHUB CALENDAR LINEAR ···· 500+ MINIMAL SURFACE · 3 TOOLS RANKED · ON DEMAND
A FIXED 3-TOOL SURFACE RESOLVES TO 500+ TOOLS, DISCLOSED ON DEMAND AND RANKED BY SEMANTIC RELEVANCE.

The Interface

SEARCH()
Describe the task in plain language. Returns the most relevant tools with input schemas inline — ready to call immediately, no follow-up round trip.
CALL()
Invoke any tool the search surfaced, with arguments matching its schema. Execution runs against Arcade's engine and returns the result.
AUTHORIZE()
When a tool needs OAuth, OMNI runs the handshake, reconnects providers, switches accounts, and repairs scopes — no tribal knowledge required.
APPS()
See which apps are connected and the account each is connected as — Google, GitHub, Slack, and more — and disconnect any of them. In the plugin this is the /arcade:apps command.

Advisory

OMNI is a research preview from Arcade Labs, where Arcade's engineering team shares experiments in public. It is not a supported product: it ships as-is, with no warranty, and the service may change or break on any update. Found an issue? Tell us on Discord — we address things on a best-effort basis.

Build with Arcade
WANT TO BUILD YOUR OWN SECURE MCP SERVERS? GO TO ARCADE.DEV ↗ AND LEARN ALL ABOUT THE BEST ACTIONS RUNTIME FOR AGENTS.