What platforms does gtm-api support?

gtm-api is available on Web App.

What are the limitations of gtm-api?

Only LinkedIn is live; email, messengers and calendars are still listed as coming soon. Developer-oriented: there is no visible campaign builder, so non-technical users must bring their own agent or code. Automating LinkedIn accounts carries platform risk, and the under 1% restriction figure is the vendor's own claim.

gtm-api

Name: gtm-api
Author: gtm-api

MCP-first LinkedIn API that lets AI agents search, message and enrich

Advanced API

Visit gtm-api Back to AI tools

Screenshot of gtm-api, MCP-first LinkedIn API that lets AI agents search, message and enrich

What is gtm-api?

gtm-api is a LinkedIn API and MCP server that lets AI agents and backends search, connect, message and enrich through users' own accounts, each running in an isolated cloud browser with a dedicated proxy and smart limits.

gtm-api is an account-based LinkedIn API built around the Model Context Protocol. LinkedIn's official API offers no endpoints for invitations, member direct messages or people search, so the service takes a different route: users connect their own LinkedIn accounts, and those accounts are driven through a single typed contract. AI agents use MCP tools, while backend code calls REST endpoints and listens for webhooks. The endpoint catalog is grouped into four areas. Messaging covers standard and Sales Navigator messages, connection requests, and listing conversations and messages. Scraping covers people search, post search, post reactors, post commenters and scheduled auto-scrapes. Enrichment returns full person profiles, contact info, person posts, company profiles and company posts. An infrastructure group exposes smart limits, account snapshots, an activity log and cloud browser access. Classic, Sales Navigator and Recruiter accounts are listed as supported. In practice, each connected account runs in its own isolated cloud browser with a dedicated residential proxy and a stable browser profile. Only one session is active per account at a time, and warm-up curves begin at 10-15 invites per day, with per-channel limits that cannot be overrun. The vendor reports more than 20,000 accounts on the stack, with fewer than 1% ever restricted, though that figure is its own claim. Setup is meant to be quick: an API key, a copied snippet, or an npx command for the MCP package, with one-click installs for Cursor and VS Code and connection guides for Claude, ChatGPT, LangChain, n8n and the OpenAI Agents SDK. Make, Zapier and Windmill work through the REST API. The audience is GTM engineers, AI SDR builders, agencies onboarding clients through OAuth, platforms adding LinkedIn as a channel, and account providers managing fleets. Compared with desktop-extension automation tools, it is developer infrastructure rather than a campaign UI. Email, messengers and calendars are marked as coming soon, so LinkedIn is the only live channel today.

How do you use gtm-api?

1Create an account and get an API key
Sign up for gtm-api to receive a key. The quickstart describes a first call within about two minutes.
2Read the quickstart
Follow the quickstart to copy the first snippet and confirm that authentication works before building anything larger.
3Connect your LinkedIn account
Link a LinkedIn account through hosted auth. It then runs in its own cloud browser with a dedicated proxy and smart limits.
4Connect your AI agent over MCP
Add the MCP server to Claude, Cursor, VS Code or ChatGPT, or run the npx package, then approve access with OAuth consent in the browser.
5Run a search and send outreach
Use people search or post scraping to build a list, then send connection requests or messages while respecting the smart limits.
6Subscribe to webhooks
Set up webhooks to receive events such as replies, so your backend or agent can react without polling.

Pros and cons

Pros

MCP-first design lets Claude, Cursor, ChatGPT and other agents call LinkedIn actions as typed toolsAI
Broad endpoint coverage: messaging, invitations, people and post scraping, and profile and company enrichmentAI
Each account gets an isolated cloud browser, dedicated residential proxy and single-session protectionAI
Smart limits and warm-up curves, plus account health data, help keep outreach within safe volumesAI
REST API, webhooks and one-click installs for Cursor and VS Code suit both agent and backend workflowsAI

Cons

Only LinkedIn is live; email, messengers and calendars are still listed as coming soonAI
Developer-oriented: there is no visible campaign builder, so non-technical users must bring their own agent or codeAI
Automating LinkedIn accounts carries platform risk, and the under 1% restriction figure is the vendor's own claimAI
Pricing is per connected account, and exact plan figures were not visible in the homepage content reviewedAI
Warm-up starting at 10-15 invites per day means new accounts ramp slowly before reaching full volumeAI

How much does gtm-api cost?

Pricing

Pricing is per connected account, and the vendor describes it as the best per-account pricing on the market. Specific plan figures are not shown in the homepage content, so check the pricing page.

Learn more

Support

Support channels are not described in the homepage content. Documentation covers a quickstart, MCP guides, an API reference and webhook guides, and a blog is available.

Learn more

Integrations

Connects over MCP to Claude, Cursor, VS Code, ChatGPT, LangChain, n8n and OpenAI Agents. Make, Zapier and Windmill drive the REST API. An npx package, @gtm-api/linkedin-mcp, is available.

Learn more

Features

LinkedIn messaging, Sales Navigator messages and invitations; people, post, reactor and commenter scraping with scheduled auto-scrapes; person and company enrichment; MCP tools, REST and webhooks; cloud browsers, smart limits, snapshots and activity logs.

Learn more

Frequently asked questions about gtm-api

How much does gtm-api cost?
Pricing is per connected account, and the vendor describes it as the best per-account pricing on the market. Specific plan figures are not shown in the homepage content, so check the pricing page.
Does gtm-api have an API?
Yes, gtm-api offers an API.
How do you use gtm-api?
The walkthrough on this page covers 6 steps: 1. Create an account and get an API key 2. Read the quickstart 3. Connect your LinkedIn account 4. Connect your AI agent over MCP 5. Run a search and send outreach 6. Subscribe to webhooks.
What platforms does gtm-api support?
gtm-api is available on Web App.
What does gtm-api integrate with?
Connects over MCP to Claude, Cursor, VS Code, ChatGPT, LangChain, n8n and OpenAI Agents. Make, Zapier and Windmill drive the REST API. An npx package, @gtm-api/linkedin-mcp, is available.
What are the limitations of gtm-api?
Only LinkedIn is live; email, messengers and calendars are still listed as coming soon. Developer-oriented: there is no visible campaign builder, so non-technical users must bring their own agent or code. Automating LinkedIn accounts carries platform risk, and the under 1% restriction figure is the vendor's own claim.