Does Zed support OAuth for MCP?

Yes. If a remote server has no Authorization header, Zed runs the standard MCP sign-in flow.

Can I limit which Tesselith tools Zed uses?

Yes, with agent profiles: disable enable_all_context_servers and list the tools you want.

Zed + Tesselith

How to connect Zed to Tesselith

Add Tesselith to Zed as a remote context server and schedule social posts from Zed's agent panel. Zed 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 a recent Zed 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.

1 · Connect · a few minutes

Run this

settings.json

{
  "context_servers": {
    "tesselith": {
      "url": "https://api.tesselith.com/mcp"
    }
  }
}

Or use Settings → AI → MCP Servers → Add Server → Add Remote Server.

2 · Ask · live in Tesselith

Ask Zed to post for you

Draft a Mastodon post about this refactor.

Used Tesselith · create_draft

Saved a 412-character Mastodon draft in Tesselith. Want it queued?

Also try:

“Queue it for the next free slot.”
“What's going out on Mastodon this week?”
“List my Tesselith channels.”

The setup at a glance

Add the remote server
Sign in
Check the status dot
Use it in the agent panel

One connection, every channel

Connect your accounts in Tesselith once. From then on Zed 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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YouTube
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Mastodon
Dev.toSoon
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How do I connect Zed to Tesselith, step by step?

1. Add the remote server
Open Settings → AI → MCP Servers, click Add Server and choose Add Remote Server, or add the entry to settings.json yourself.
2. Sign in
With no Authorization header set, Zed prompts you to sign in. A Tesselith window opens. Sign in, pick the workspace, untick anything you don't want the agent to do, and click Allow access.
3. Check the status dot
A green dot next to tesselith means the server is active.
4. Use it in the agent panel
Make sure your agent profile includes the Tesselith tools, then ask the agent to list your channels. Zed asks you to confirm tool calls by default.

Can I use an API key instead of signing in?

Zed can send a key as a header instead. 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. Zed doesn't document environment variables in settings.json, so avoid this if your settings file is synced or committed.

settings.json

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

What can Zed do in Tesselith?

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

Tesselith MCP tools available to Zed
	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 Zed not working with Tesselith?

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

Troubleshooting Zed with Tesselith
	Fix
Zed never asks you to sign in	An Authorization header is set. Remove it to use the browser sign-in.
The dot isn't green	Hover it for the error, and update Zed if remote servers aren't supported in your build.
The agent doesn't see the tools	Your agent profile has Tesselith's tools disabled. Enable them in the profile.
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.

Zed and Tesselith: frequently asked questions

Does Zed support OAuth for MCP?: Yes. If a remote server has no Authorization header, Zed runs the standard MCP sign-in flow.
Can I limit which Tesselith tools Zed uses?: Yes, with agent profiles: disable enable_all_context_servers and list the tools you want.

Zed’s own documentation: Zed Industries docs.

Connect other AI agents

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

Ready to connect Zed?

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

Join the waitlist

Zed + Tesselith

How to connect Zed to Tesselith

Join the waitlist MCP docs

What do I need before connecting?

You need a recent Zed 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.

1 · Connect · a few minutes

Run this

settings.json

{
  "context_servers": {
    "tesselith": {
      "url": "https://api.tesselith.com/mcp"
    }
  }
}

Or use Settings → AI → MCP Servers → Add Server → Add Remote Server.

2 · Ask · live in Tesselith

Ask Zed to post for you

Draft a Mastodon post about this refactor.

Used Tesselith · create_draft

Saved a 412-character Mastodon draft in Tesselith. Want it queued?

Also try:

“Queue it for the next free slot.”
“What's going out on Mastodon this week?”
“List my Tesselith channels.”

The setup at a glance

Add the remote server
Sign in
Check the status dot
Use it in the agent panel

One connection, every channel

Connect your accounts in Tesselith once. From then on Zed 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 Zed to Tesselith, step by step?

1. Add the remote server
Open Settings → AI → MCP Servers, click Add Server and choose Add Remote Server, or add the entry to settings.json yourself.
2. Sign in
With no Authorization header set, Zed prompts you to sign in. A Tesselith window opens. Sign in, pick the workspace, untick anything you don't want the agent to do, and click Allow access.
3. Check the status dot
A green dot next to tesselith means the server is active.
4. Use it in the agent panel
Make sure your agent profile includes the Tesselith tools, then ask the agent to list your channels. Zed asks you to confirm tool calls by default.

Can I use an API key instead of signing in?

settings.json

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

What can Zed do in Tesselith?

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

Tesselith MCP tools available to Zed
	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 Zed not working with Tesselith?

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

Troubleshooting Zed with Tesselith
	Fix
Zed never asks you to sign in	An Authorization header is set. Remove it to use the browser sign-in.
The dot isn't green	Hover it for the error, and update Zed if remote servers aren't supported in your build.
The agent doesn't see the tools	Your agent profile has Tesselith's tools disabled. Enable them in the profile.
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.

Zed and Tesselith: frequently asked questions

Does Zed support OAuth for MCP?: Yes. If a remote server has no Authorization header, Zed runs the standard MCP sign-in flow.
Can I limit which Tesselith tools Zed uses?: Yes, with agent profiles: disable enable_all_context_servers and list the tools you want.

Zed’s own documentation: Zed Industries docs.

Connect other AI agents

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

Ready to connect Zed?

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

Join the waitlist

What do I need before connecting?

Run this

Ask Zed to post for you

The setup at a glance

One connection, every channel

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

1. Add the remote server

2. Sign in

3. Check the status dot

4. Use it in the agent panel

Can I use an API key instead of signing in?

What can Zed do in Tesselith?

Why is Zed not working with Tesselith?

Zed and Tesselith: frequently asked questions

Connect other AI agents

Ready to connect Zed?

What do I need before connecting?

Run this

Ask Zed to post for you

The setup at a glance

One connection, every channel

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

1. Add the remote server

2. Sign in

3. Check the status dot

4. Use it in the agent panel

Can I use an API key instead of signing in?

What can Zed do in Tesselith?

Why is Zed not working with Tesselith?

Zed and Tesselith: frequently asked questions

Connect other AI agents

Ready to connect Zed?