What does One actually do?

One is the integration runtime for AI agents and the command center for humans to manage them. For agents, One provides authenticated access to 758+ platforms with 108,925+ actions, scheduling, memory, and full API knowledge -- all through one CLI. For humans, One provides a single dashboard to deploy, monitor, and control what your agents can access. Your agents get secure access to Gmail, Slack, Stripe, HubSpot, and hundreds more without you wiring up each API yourself.

Do I need to be a developer to use One?

No. Business users connect apps through the dashboard. Developers get the SDK for building custom agents. Either way, setup takes minutes, not days.

Yes. All credentials are encrypted at rest and in transit. Each user's connections are fully isolated. SOC 2 compliant. Enterprise plans include SSO, SCIM, and granular access policies.

How is this different from Zapier or Make?

Those are rule-based automation. One gives AI agents direct access to your apps so they can handle complex, multi-step workflows that would take dozens of Zaps. Your agent decides what to do based on context, not a static flowchart.

What apps does One connect to?

108,925+ tools across 758+ platforms including Gmail, Slack, Stripe, HubSpot, Salesforce, Notion, GitHub, and more. Every integration is production-tested and works out of the box with managed auth.

How long does it take to set up?

Most people have their first connection running in under 5 minutes. Install the SDK, connect an app, and start using it.

Can I use One with ChatGPT, Claude, or my own AI agent?

Yes. Works with any LLM or framework: OpenAI, Anthropic, LangChain, CrewAI, Vercel AI SDK, or your own code. The SDK is framework-agnostic.

What is MCP and why does it matter?

MCP is an open standard for connecting AI to external tools. One hosts the largest MCP server with 108,925+ tools ready to use. Bridge lets you turn any API into an MCP server by just pasting its docs URL.

The SDK and all integrations are open source. The managed platform (auth, hosting, memory) is provided by One. You can inspect every integration, contribute new ones, and self-host if you want.

Free to start, no credit card required. Usage-based pricing that scales with your agents' activity. Enterprise plans with SSO, SCIM, and dedicated support.

Is there a single CLI that works with Zoom, Slack, Gmail, and other integrations?

Yes. The One CLI connects to 758+ platforms through a single interface. Run 'one actions search zoom "schedule meeting"' to find actions, 'one actions knowledge' to see full API docs, and 'one actions execute' to run them. One manages auth, rate limits, and error handling for every platform.

Can I use One instead of building custom API integrations?

Yes. One replaces the need to read API docs, implement OAuth flows, handle rate limiting, and write platform-specific code for each integration. One CLI gives you one interface for 758+ platforms with 108,925+ pre-built actions, managed auth, and full API knowledge.

What is the best way to connect ChatGPT or Claude to third-party apps?

Use One's universal MCP server or SDK. One provides a single MCP endpoint that gives any AI tool access to 758+ platforms. Works with ChatGPT, Claude, Cursor, Windsurf, VS Code, and any MCP-compatible client. 4 tools, ~3K tokens, instant access to 108,925+ actions.

How does One handle authentication across all platforms?

One manages the full OAuth and API key lifecycle for every platform. Connect once through the dashboard, and One handles token refresh, credential rotation, and multi-tenant isolation automatically. No more building OAuth flows per platform.

🎉The world's largest app knowledge base is now open source

The trust layer for AI agents.

Give your agents access to 758+ platforms, wrapped in the auth, access control, and audit that make them safe and reliable to run in production.

$ npm i -g @withone/cli

Used by teams at

Google
Microsoft
Cisco
Dropbox
Lyft
Figma
Docker
Postman
JetBrains
Netlify
Webflow
Clerk
PostHog
HubSpot
monday.com
ElevenLabs
UiPath
StackBlitz
HEY
New York University
University of Waterloo
UC Berkeley
MIT
Stanford University

108,925+

Tools

20,000+

Developers

99.9%

Uptime

<100ms

p95 latency

Works with every major AI agent

CLI

One login. One CLI. Every app.

One tool to find any app, see what it can do, and take action. No setup, no wiring, no API docs to read.

One CLI

One tool to find, connect, and use any app.
Your agent's interface to 690+ platforms.

one / platforms

$ one platforms --category crm

● HubSpotconnected

● Salesforceconnected

○ Pipedriveavailable

○ Attioavailable

○ Closeavailable

5 platforms found

Get started Learn more

Context efficiency

Thousands of tools, no bloat.

Connect all 758+ platforms. Your agent still only ever sees four commands.

Without Oneexceeds 200K

~810,900 tok

5,406 tool schemas in the prompt, before the task starts

With One

~3,000 tok

4 commands. All 5,406 actions stay one search away.

Turn platforms off. Only the left number moves.

Browse all 758+ platforms

The entire interface, four commands~3,000 tok

$ one list

# what's connected

$ one actions search github "open a pull request"

# find any action in plain language

$ one actions knowledge github conn_mod_def::xK2::createPR

# loads ONE schema, only when called

$ one actions execute github conn_mod_def::xK2::createPR -d '{"title":"Fix login"}'

# run it

# 758+ platforms · 108,925+ actions · 4 operations

See how the token math works Get started

Auth

One login. Every integration.

Connect all your apps in one place. Your agents authenticate automatically, tokens refresh silently, and every connection stays secure.

authkit / connect

Connect your apps

1PasswordConnected

2ChatConnected

7shiftsConnected

AblyConnected

Ably ControlConnected

Abstract AvatarsConnect →

Abstract Company EnrichmentConnect →

Abstract Email ReputationConnect →

Abstract IBAN ValidationConnect →

Abstract IP IntelligenceConnect →

Abstract Phone IntelligenceConnect →

Abstract Public HolidaysConnect →

One Auth

Managed auth for AI agents and the apps
that use them. Connect once, never think about tokens again.

Get started Learn more

Real-world use cases

All use cases

Complete, working implementations built on One. Every one ships with a free, open-source repo you can clone and run.

Operations

Groom the Linear backlog nobody has time to go through

An open-source AI pipeline for operations: it scans an entire Linear backlog for duplicate issues, recommends closing the ones that quietly died against a plain-English policy file, and flags the issues that lost their owner. Built on One.

Open-source repo

Operations

Find the wiki pages that are quietly lying to your team

An open-source AI pipeline for operations: it pulls every Notion page, gates on how long it's been since anyone touched it, checks the stale ones against a plain-English file of what's actually true, and catches pages that contradict each other. Built on One.

Open-source repo

Finance

Recover failed payments with the email their decline reason actually deserves

An open-source AI pipeline for finance teams: it reads every failed Stripe charge, classifies why it actually failed, has Claude write the recovery email that reason deserves, and drops a draft in Gmail. A lost or stolen card is never emailed, only escalated. Built on One.

Open-source repo

Agents

Give your AI agent access to every app you use.

One agent that works across Gmail, Slack, Stripe, HubSpot, and thousands more. It remembers your context and acts on your behalf.

agent / skills

$ one skill gmail.send --to "[email protected]"

✓ Email sent via Gmail[238ms]

✓ Logged to memory[12ms]

Connected: Gmail, Slack, Stripe, HubSpot +8

One Agent

Your AI with all your apps connected.
Skills, channels, and automation built in.

Get started Learn more

Under the hood

Everything your agents need to run in production.

108,925+

Open source skills

Production-tested integrations for every major platform

<100ms

p95 latency

Fast enough for real-time agent interactions

99.9%

Guaranteed uptime

Enterprise-grade reliability you can depend on

One Platform

Six primitives. One SDK. The complete
infrastructure layer for production agents.

skills

$ one skill gmail.send --to "[email protected]"

✓ Email sent via Gmail[238ms]

✓ Logged to memory[12ms]

Get started Learn more

Bridgeenterprise

Activate your API for AI.

Give us your docs URL. We turn your API into a production-ready MCP server in minutes. Full auth, filtering, and optimization included.

bridge

API Documentation URL

https://docs.acme.co/api

Activate

1.Paste your docs URL

Point Bridge at your API documentation. OpenAPI, REST, GraphQL. We handle the rest.

processing

Processing acme-api

✓47 endpoints discovered

✓Auth flow mapped

✓Context optimized (2.8K)

●Generating MCP schema...

2.Ingest & optimize

Bridge discovers endpoints, maps authentication, optimizes context windows, and generates a complete MCP schema.

acme-api.mcp

acme-apiLive

StatusLive ✓

Endpoints47 active

AuthOAuth 2.0

Context2.8K tokens

3.Deploy MCP

Your API is now an MCP server. Any AI agent can discover and use it with managed auth and rate limiting.

Get started Learn more

Open source

108,925+ tools across 758+ platforms

Integration knowledge should never be locked behind a platform. The full SDK, every skill, and MCP tools are open source. Fork, extend, contribute.

GitHub Docs

FAQ

Frequently asked questions

Start connecting your apps today.

Free to start. 108,925+ tools. One CLI.

Get Started Browse app knowledge

No credit card required

Latest from the blog

All posts

Aug 26, 2026

Headlong agents think around the clock. Acting is the other half

Headlong is a persistent-agent harness written in Bash. Wire it to the One CLI and its thought stream can reach Slack, Telegram and 758+ other platforms. One skill file, 85 lines of loop, a working transcript.

Aug 24, 2026

A hundred tools is too many. Our GitHub catalog is 1,093.

The new MCP roadmap prioritizes progressive discovery. Measured: GitHub's MCP server costs 56,063 tokens before you ask anything. One's costs 1,650.

Aug 21, 2026

Slack Code puts the agent in the channel. The channel still stops at the repo.

Slack Code gives coding agents their own channels. The One CLI runs the rest from that thread: close the Linear issue, write the CRM note, reply in place.