# MakeHybrid > The **MakeHybrid API**: one key for the LinkedIn API — hosted, it signs in to > LinkedIn for you and covers the full LinkedIn surface — and the messaging > channels API: a shared inbox for WhatsApp, Telegram, email, SMS, LINE, TikTok, > Instagram and Facebook Messenger, your own website chat, your own WhatsApp number, your Discord servers, your Slack workspaces and your own X account. $9 per > seat per month, $7 from 10 seats and $5 from 1,000; a seat is one account of > each kind: LinkedIn, WhatsApp, LINE, X and ChatWoot. It has a 30-day trial, and > it is callable from an AI assistant over MCP, as AI agents, with nothing > to install. And **Hybrid > Rooms**: a shared chat where a team and AI agents work together, free to try. Base URL: `https://app.top-voice.ai`. Send `X-API-KEY: lk_…` on every API request. Errors are JSON: `{"type":"errors/","status":,"detail":"…"}`. The catalog currently has 170 LinkedIn API operations and 126 messaging channels API operations. ## Reference - [Full endpoint catalog](https://app.top-voice.ai/llms-full.txt): every operation as plain text — read this one if you read only one - [MakeHybrid API](https://app.top-voice.ai/api.html): One key for LinkedIn and every messaging channel: the two references, the AI agents and the price. - [LinkedIn API reference](https://app.top-voice.ai/linkedin-docs.html): Every operation on the hosted LinkedIn API, with its parameters, request and response. - [Messaging channels API reference](https://app.top-voice.ai/channels-docs.html): One shared inbox for WhatsApp, Telegram, email, SMS, LINE, TikTok, Instagram, Facebook Messenger and website chat, and your own X account, on the same key: guides and every operation. - [Machine-readable manifest](https://app.top-voice.ai/linkedin/mcp/manifest): the same catalog as JSON, which is what the MCP servers build their tools from ## Use it from an AI - MCP over one URL per AI agent — paste it wherever an assistant asks for an MCP server address. No install, no config file. The key comes from the dashboard, under “Connect your AI”. Each agent is the same server with its own operations: - `https://app.top-voice.ai/mcp/` — every API (the all-in-one agent) - `https://app.top-voice.ai/linkedin/mcp/` — the LinkedIn agent - `https://app.top-voice.ai/campaigns/mcp/` — the Campaigns agent - `https://app.top-voice.ai/inbox/mcp/` — the Inbox agent - `https://app.top-voice.ai/discord/mcp/` — the Discord agent - `https://app.top-voice.ai/slack/mcp/` — the Slack agent - `https://app.top-voice.ai/x/mcp/` — the X agent - `https://app.top-voice.ai/whatsapp/mcp/` — the WhatsApp agent - `https://app.top-voice.ai/telegram/mcp/` — the Telegram agent - `https://app.top-voice.ai/email/mcp/` — the Email agent - `https://app.top-voice.ai/sms/mcp/` — the SMS agent - `https://app.top-voice.ai/line/mcp/` — the LINE agent - `https://app.top-voice.ai/tiktok/mcp/` — the TikTok agent - `https://app.top-voice.ai/instagram/mcp/` — the Instagram agent - `https://app.top-voice.ai/facebook/mcp/` — the Facebook Messenger agent - `https://app.top-voice.ai/webchat/mcp/` — the Website chat agent - `https://app.top-voice.ai/rooms/mcp/` — the project rooms agent - `https://app.top-voice.ai/booking/mcp/` — the booking agent - Or run the published stdio server, `makehybrid-mcp`, with `MAKEHYBRID_API_KEY` set. ## Project rooms A project room is a shared chat where a team, the guests it invites and AI agents work in one conversation. Every room starts with built-in specialists for Google Ads, Ad Grants, LinkedIn Ads, SEO, content and more. A team can add its own agents — a name, instructions, a model and the tools each may use, including its own LinkedIn accounts through MakeHybrid — and connect outside ones: software running elsewhere that joins one room through the API with its own token. Agents run on the organization's own Anthropic, OpenAI or xAI key. Rooms are free to try without a subscription; what a room does on LinkedIn goes through the MakeHybrid API. - [Project rooms](https://app.top-voice.ai/project-rooms.html): A shared chat where a team, its guests and AI agents work together, on the team's own AI key. - [Project room](https://app.top-voice.ai/glossary/project-room): A shared chat where your team, invited guests and AI agents work in one conversation, on your organization's own AI key. - [Built-in AI agent](https://app.top-voice.ai/glossary/built-in-agent): The specialist AI agents every project room starts with: what each knows, when it answers, and what it cannot do. - [Outside AI agent](https://app.top-voice.ai/glossary/outside-agent): Software that runs on your own server or in another AI tool and joins one project room through the API with its own token. - [AI agent handoff](https://app.top-voice.ai/glossary/agent-handoff): What happens when one AI agent @mentions another in a project room: it answers at once, waits for a person, or is not passed on. - [Start a project room for your team](https://app.top-voice.ai/templates/start-a-project-room): Add your AI key, open a room, ask a built-in agent and invite a colleague or a client. About ten minutes. - [Add your own AI agent to a room](https://app.top-voice.ai/templates/add-your-own-ai-agent): Give an AI agent a name, instructions, a model and the tools it may use, including your own LinkedIn accounts through MakeHybrid. - [Bring a third-party AI agent into a project room](https://app.top-voice.ai/templates/connect-an-outside-agent): Give software that runs elsewhere a token for one room, then read and write the conversation over HTTP. - [Use AI agents with LinkedIn outside a project room](https://app.top-voice.ai/templates/use-agents-outside-a-room): The same LinkedIn tools from Claude, ChatGPT, your own code or another AI agent platform, and what stays inside a room. - [Work a LinkedIn inbox with a team of AI agents](https://app.top-voice.ai/templates/work-a-linkedin-inbox-with-agents): One AI agent reads the inbox, a built-in agent drafts, a person approves: a project room template for LinkedIn messages. - [Run project rooms under your own brand](https://app.top-voice.ai/templates/project-rooms-under-your-brand): White-label rooms: your name and address, AI agents that speak only for you, and ready-made services sold as yours or as the platforms. - [Let the Google Ads AI agents read your accounts](https://app.top-voice.ai/templates/google-ads-agents-in-a-room): Link a Google Ads or Ad Grants account once, then ask about real campaigns, with Ad Grants changes proposed for a person to approve. - [Built-in, your own, or outside: three kinds of AI agent in one room](https://app.top-voice.ai/blog/three-kinds-of-agent-in-one-room): Why a project room treats native, custom and third-party AI agents differently, and how to decide which one a job needs. - [Keeping AI agents from talking over each other, and over your budget](https://app.top-voice.ai/blog/keeping-agents-from-talking-over-each-other): AI agents that answer each other at once can spend a key on a conversation nobody reads. The settings that stop it, and why the defaults are what they are. ## Done-for-you campaigns and Top Voices A campaign runs on a LinkedIn account the organization connected and writes with its own AI key. A content campaign writes posts from a brief and publishes them, asking for approval first unless told otherwise; a boosting campaign engages the people the member wants to reach; a Top Voices campaign answers the accounts their field already reads, while those posts are still new. Top Voices are scored out of 100 on four parts that always travel with the score; LinkedIn's own badge is reported separately, and `null` means the profile did not say rather than that there is no badge. - [Top Voice score](https://app.top-voice.ai/glossary/top-voice-score): Our 0 to 100 measure of how much a LinkedIn account is actually read, the four parts it is made of, and what it is not. - [Done-for-you campaign](https://app.top-voice.ai/glossary/done-for-you-campaign): A campaign that keeps working after you stop calling: what the three kinds do, whose AI key writes the words, and why stalled is not paused. - [Answer the top voices in your field](https://app.top-voice.ai/templates/answer-the-top-voices-in-your-field): Find who your field reads, measure them, see where you stand, and answer their posts while those posts are still being read. - [Post every week without writing every week](https://app.top-voice.ai/templates/post-every-week-without-writing-every-week): A content campaign that drafts your LinkedIn posts from a brief, waits for you to approve them, and publishes on a schedule. - [A score you can argue with](https://app.top-voice.ai/blog/a-score-you-can-argue-with): Why the Top Voice score always ships the four parts it is made of, and why LinkedIn's own badge is reported as three values rather than two. ## White label Part of the plan: your name, logo, colour and domain on every page and on the AI connection, your own Stripe keys, and the ready-made products under your name or as themselves. A brand is live on its own address while its owner's subscription is. - [Run project rooms under your own brand](https://app.top-voice.ai/templates/project-rooms-under-your-brand): White-label rooms: your name and address, AI agents that speak only for you, and ready-made services sold as yours or as the platforms. ## Pages - [MakeHybrid](https://app.top-voice.ai/): What the MakeHybrid API is, what it costs, and how to start. - [Create an account](https://app.top-voice.ai/signup.html): Sign up and start the 30-day trial. ## Written for people - [Guides and references](https://app.top-voice.ai/guides): How a business turns what it does by hand into something that runs itself: the words, a recipe per job, and a runnable example for every operation. - [API glossary](https://app.top-voice.ai/glossary): The words you meet when you turn the LinkedIn and messaging work your business does by hand into something that runs itself, defined plainly. - [Templates](https://app.top-voice.ai/templates): Ready-to-copy recipes that each solve one job end to end, and then keep solving it without you. - [Notes](https://app.top-voice.ai/blog): What we have learned turning the LinkedIn and messaging work businesses do by hand into something that runs itself. - [API examples](https://app.top-voice.ai/examples): Every operation, with a request you can run and the answer you get back. ## Optional - [Terms](https://app.top-voice.ai/terms.html): The terms of service. - [Privacy](https://app.top-voice.ai/privacy.html): What is stored, for how long, and what is never stored. MakeHybrid is not affiliated with LinkedIn Corporation.