API 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.
Guides and references
Everything written about building your own service and product in one, in one index: what the words mean, a recipe for each job, what we have learned running it, and an example you can run for every operation. Start anywhere — none of it assumes you write code.
The LinkedIn API
Connecting an account, what LinkedIn asks for when you do, and the calls that do the work afterwards: what the words mean, a recipe for each job, and what we have learned running it.
- Checkpoint
- In-app validation
- Account id
- API key
- Session cookie (li_at)
- Webhook
- Idempotency
- Pacing
- Proxy and egress
- MCP
- Reply to every new LinkedIn message, automatically
- Turn a list of LinkedIn profile URLs into real data
- Connect your first LinkedIn account
- LinkedIn asked for a code, or a tap in the app
- Your first API call
- Use LinkedIn from Claude or ChatGPT
- A 2xx does not mean it appeared on LinkedIn
- What actually makes LinkedIn ask for extra verification
- Designing around rate limits you cannot see
- Reading webhooks without doing everything twice
- What an AI assistant can and cannot do with a LinkedIn API
Project rooms and AI agents
Your team, the built-in specialists and any AI agent you bring, in one room: what it is, how to start one, and how to use the same agents outside it.
- Project room
- Built-in AI agent
- Outside AI agent
- AI agent handoff
- Start a project room for your team
- Add your own AI agent to a room
- Bring a third-party AI agent into a project room
- Use AI agents with LinkedIn outside a project room
- Work a LinkedIn inbox with a team of AI agents
- Run project rooms under your own brand
- Let the Google Ads AI agents read your accounts
- Built-in, your own, or outside: three kinds of AI agent in one room
- Keeping AI agents from talking over each other, and over your budget
Messaging channels
WhatsApp, Instagram, Facebook, TikTok, Telegram, LINE, email, SMS, your website chat, X and Discord on one key: what each channel is, how to answer it from code or with AI agents, and what each platform asks of you.
Campaigns and Top Voices
LinkedIn work that keeps running after you stop calling: posts written and published on a schedule, the people you want to reach engaged with, and the voices your field already reads answered while their posts are still new.
Templates
Ready-to-copy recipes that each solve one job end to end, and then keep solving it without you.
- Add your own AI agent to a room
- Answer Discord questions from your own code
- Answer every channel from one inbox
- Answer the top voices in your field
- Bring a third-party AI agent into a project room
- Post every week without writing every week
- Reply on WhatsApp with an AI agent
- Reply to every new LinkedIn message, automatically
- Send X direct messages from your own app
- Turn a list of LinkedIn profile URLs into real data
Notes
What we have learned turning the LinkedIn and messaging work businesses do by hand into something that runs itself.
- Reading webhooks without doing everything twice
- A 2xx does not mean it appeared on LinkedIn
- A score you can argue with
- Built-in, your own, or outside: three kinds of AI agent in one room
- Designing around rate limits you cannot see
- Keeping AI agents from talking over each other, and over your budget
- One key for every channel
- What an AI assistant can and cannot do with a LinkedIn API
- A linked number is not a broadcast list
- What actually makes LinkedIn ask for extra verification
API examples
Every operation, with a request you can run and the answer you get back.
- Accept a Relation request — MakeHybrid API
- Add a Chat Participant — MakeHybrid API
- Add a chat to your website — MakeHybrid API
- Add a Message Reaction — MakeHybrid API
- Add a note to a contact — MakeHybrid API
- Add a post to a content campaign — MakeHybrid API
- Add a webhook — MakeHybrid API
- Add agents to an inbox — MakeHybrid API
- Add agents to an inbox team — MakeHybrid API
- Add an inbox contact — MakeHybrid API