Does Cline support Tesselith's browser sign-in?

Cline's CLI can authorize OAuth servers. In the VS Code extension, use the API key header.

Is my key safe in cline_mcp_settings.json?

It's stored on your machine. Use a key with only the scopes Cline needs, and revoke it in Tesselith if it leaks.

Cline + Tesselith

How to connect Cline to Tesselith

Add Tesselith to Cline's MCP settings and let Cline draft and schedule social posts from VS Code. Cline talks to Tesselith’s MCP server, so it can draft, queue and schedule posts on every channel you’ve connected. Keep a human in the loop: publishing now and deleting always ask for your confirmation.

Join the waitlist MCP docs

What do I need before connecting?

You need the Cline extension, a Tesselith API key and a Tesselith workspace on Pro, Team or Agency (every new workspace starts with a 14-day Pro trial) with at least one channel connected. The API key header is the most reliable way to connect the extension.

1 · Connect · a few minutes

Run this

cline_mcp_settings.json

{
  "mcpServers": {
    "tesselith": {
      "type": "streamableHttp",
      "url": "https://api.tesselith.com/mcp",
      "headers": { "Authorization": "Bearer tsl_live_…" }
    }
  }
}

Always set "type": "streamableHttp". Without it Cline falls back to the older SSE transport.

2 · Ask · live in Tesselith

Ask Cline to post for you

Draft an X post summarising today's changes.

Used Tesselith · create_draft

Saved a 244-character X draft in Tesselith for you to review.

Also try:

“Queue the draft for tomorrow at 10am.”
“List my Tesselith channels.”
“What's scheduled this week?”

The setup at a glance

Create a Tesselith API key
Open Cline's MCP settings
Paste the server and save
Check the tools

One connection, every channel

Connect your accounts in Tesselith once. From then on Cline can plan and schedule for any of them, and Tesselith publishes at the time you set, even after the conversation ends.

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How do I connect Cline to Tesselith, step by step?

1. Create a Tesselith API key
In Tesselith, open Settings → Developers, create an API key and tick only the scopes the agent needs. Keys start with tsl_live_ and are shown once, so store it in your password manager or a secret store.
2. Open Cline's MCP settings
In the Cline panel, click the MCP Servers icon, open the Configure tab and click Configure MCP Servers.
3. Paste the server and save
Add the entry above with your key and save. Cline connects automatically.
4. Check the tools
Tesselith's tools appear in the MCP panel. Ask Cline to list your channels. Keep autoApprove limited to read-only tools.

What can Cline do in Tesselith?

The server at https://api.tesselith.com/mcp exposes these tools. Cline only gets the permissions you approve, and never more than your own role.

Tesselith MCP tools available to Cline
	What it does
list_channels	Lists your connected accounts and their status
list_posts / get_post	Finds posts by status or channel, or reads one
get_queue	Shows a channel's upcoming posts and free slots
suggest_best_time	Suggests the next free slot and your best hours
get_analytics_summary	Counts active channels, drafts and published posts
create_draft	Drafts a post for one or more channels
update_post	Changes a post's text, channels or media
add_to_queue	Gives a post the channel's next free slot
schedule_post	Pins a post to an exact time
upload_media_from_url	Attaches an image or video from a public URL
publish_now	Publishes within a minute, only after you confirm
delete_post	Deletes a post, only after you confirm

Why is Cline not working with Tesselith?

Almost every failure is one of these. Tesselith returns a readable error, so asking Cline“what went wrong?” usually points at the right row.

Troubleshooting Cline with Tesselith
	Fix
Cline tries SSE and fails	Add "type": "streamableHttp" to the server entry.
401 errors	Check the header spelling and that the key starts with tsl_live_ and hasn't been revoked.
Calls time out	Raise the server's timeout in Cline's MCP settings.
Cline acts without asking	Remove write tools from autoApprove.
403: your plan doesn't include API access	MCP is included on Pro, Team and Agency. New workspaces get a 14-day Pro trial; upgrade under Settings → Billing.
401: connection revoked or lost access	Someone disconnected the assistant in Settings → AI assistants, or your role changed. Connect again and approve the workspace.
The assistant can read posts but can't schedule	You unticked Schedule and queue on the consent screen. Disconnect and connect again, keeping that permission.
No channels found	The assistant only sees accounts already connected in Tesselith. Connect them under Channels first.
Post scheduled at the wrong time	Tell the assistant your time zone. Tesselith takes ISO 8601 times with an offset, and your workspace time zone is shown in get_queue.
429: rate limited	Each connection can make 120 requests a minute on Pro, 300 on Team and 600 on Agency. Wait for the Retry-After seconds.

Cline and Tesselith: frequently asked questions

Does Cline support Tesselith's browser sign-in?: Cline's CLI can authorize OAuth servers. In the VS Code extension, use the API key header.
Is my key safe in cline_mcp_settings.json?: It's stored on your machine. Use a key with only the scopes Cline needs, and revoke it in Tesselith if it leaks.

Cline’s own documentation: Cline docs.

Connect other AI agents

Claude Claude Code Claude Cowork ChatGPT Codex OpenAI API Cursor VS Code (GitHub Copilot)Windsurf Zed Gemini CLI Hermes Agent OpenClaw Goose n8n Mistral Le Chat Perplexity Manus

Ready to connect Cline?

Create your Tesselith account, connect your channels, and Cline can start scheduling in minutes.

Join the waitlist

Cline + Tesselith

How to connect Cline to Tesselith

Join the waitlist MCP docs

What do I need before connecting?

1 · Connect · a few minutes

Run this

cline_mcp_settings.json

{
  "mcpServers": {
    "tesselith": {
      "type": "streamableHttp",
      "url": "https://api.tesselith.com/mcp",
      "headers": { "Authorization": "Bearer tsl_live_…" }
    }
  }
}

Always set "type": "streamableHttp". Without it Cline falls back to the older SSE transport.

2 · Ask · live in Tesselith

Ask Cline to post for you

Draft an X post summarising today's changes.

Used Tesselith · create_draft

Saved a 244-character X draft in Tesselith for you to review.

Also try:

“Queue the draft for tomorrow at 10am.”
“List my Tesselith channels.”
“What's scheduled this week?”

The setup at a glance

Create a Tesselith API key
Open Cline's MCP settings
Paste the server and save
Check the tools

One connection, every channel

Connect your accounts in Tesselith once. From then on Cline can plan and schedule for any of them, and Tesselith publishes at the time you set, even after the conversation ends.

XSoon
Instagram
Facebook
LinkedInSoon
Threads
YouTube
TikTokSoon
DiscordSoon
Telegram
RedditSoon
PinterestSoon
Bluesky
Mastodon
Dev.toSoon
HashnodeSoon

How do I connect Cline to Tesselith, step by step?

1. Create a Tesselith API key
In Tesselith, open Settings → Developers, create an API key and tick only the scopes the agent needs. Keys start with tsl_live_ and are shown once, so store it in your password manager or a secret store.
2. Open Cline's MCP settings
In the Cline panel, click the MCP Servers icon, open the Configure tab and click Configure MCP Servers.
3. Paste the server and save
Add the entry above with your key and save. Cline connects automatically.
4. Check the tools
Tesselith's tools appear in the MCP panel. Ask Cline to list your channels. Keep autoApprove limited to read-only tools.

What can Cline do in Tesselith?

The server at https://api.tesselith.com/mcp exposes these tools. Cline only gets the permissions you approve, and never more than your own role.

Tesselith MCP tools available to Cline
	What it does
list_channels	Lists your connected accounts and their status
list_posts / get_post	Finds posts by status or channel, or reads one
get_queue	Shows a channel's upcoming posts and free slots
suggest_best_time	Suggests the next free slot and your best hours
get_analytics_summary	Counts active channels, drafts and published posts
create_draft	Drafts a post for one or more channels
update_post	Changes a post's text, channels or media
add_to_queue	Gives a post the channel's next free slot
schedule_post	Pins a post to an exact time
upload_media_from_url	Attaches an image or video from a public URL
publish_now	Publishes within a minute, only after you confirm
delete_post	Deletes a post, only after you confirm

Why is Cline not working with Tesselith?

Almost every failure is one of these. Tesselith returns a readable error, so asking Cline“what went wrong?” usually points at the right row.

Troubleshooting Cline with Tesselith
	Fix
Cline tries SSE and fails	Add "type": "streamableHttp" to the server entry.
401 errors	Check the header spelling and that the key starts with tsl_live_ and hasn't been revoked.
Calls time out	Raise the server's timeout in Cline's MCP settings.
Cline acts without asking	Remove write tools from autoApprove.
403: your plan doesn't include API access	MCP is included on Pro, Team and Agency. New workspaces get a 14-day Pro trial; upgrade under Settings → Billing.
401: connection revoked or lost access	Someone disconnected the assistant in Settings → AI assistants, or your role changed. Connect again and approve the workspace.
The assistant can read posts but can't schedule	You unticked Schedule and queue on the consent screen. Disconnect and connect again, keeping that permission.
No channels found	The assistant only sees accounts already connected in Tesselith. Connect them under Channels first.
Post scheduled at the wrong time	Tell the assistant your time zone. Tesselith takes ISO 8601 times with an offset, and your workspace time zone is shown in get_queue.
429: rate limited	Each connection can make 120 requests a minute on Pro, 300 on Team and 600 on Agency. Wait for the Retry-After seconds.

Cline and Tesselith: frequently asked questions

Does Cline support Tesselith's browser sign-in?: Cline's CLI can authorize OAuth servers. In the VS Code extension, use the API key header.
Is my key safe in cline_mcp_settings.json?: It's stored on your machine. Use a key with only the scopes Cline needs, and revoke it in Tesselith if it leaks.

Cline’s own documentation: Cline docs.

Connect other AI agents

Claude Claude Code Claude Cowork ChatGPT Codex OpenAI API Cursor VS Code (GitHub Copilot)Windsurf Zed Gemini CLI Hermes Agent OpenClaw Goose n8n Mistral Le Chat Perplexity Manus

Ready to connect Cline?

Create your Tesselith account, connect your channels, and Cline can start scheduling in minutes.

Join the waitlist

What do I need before connecting?

Run this

Ask Cline to post for you

The setup at a glance

One connection, every channel

How do I connect Cline to Tesselith, step by step?

1. Create a Tesselith API key

2. Open Cline's MCP settings

3. Paste the server and save

4. Check the tools

What can Cline do in Tesselith?

Why is Cline not working with Tesselith?

Cline and Tesselith: frequently asked questions

Connect other AI agents

Ready to connect Cline?

What do I need before connecting?

Run this

Ask Cline to post for you

The setup at a glance

One connection, every channel

How do I connect Cline to Tesselith, step by step?

1. Create a Tesselith API key

2. Open Cline's MCP settings

3. Paste the server and save

4. Check the tools

What can Cline do in Tesselith?

Why is Cline not working with Tesselith?

Cline and Tesselith: frequently asked questions

Connect other AI agents

Ready to connect Cline?