Where does Gemini CLI store the sign-in?

Tokens are saved in ~/.gemini/mcp-oauth-tokens.json.

Should I use --trust?

Only if you're happy for Gemini to call every Tesselith tool without asking. Leave it off so scheduling and publishing need your approval.

Gemini CLI + Tesselith

How to connect Gemini CLI to Tesselith

Add Tesselith to Gemini CLI and schedule social posts from your terminal with Google's Gemini. Gemini CLI 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 Gemini CLI installed 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

terminal

# 1. Add the Tesselith MCP server for your user
gemini mcp add -s user --transport http tesselith https://api.tesselith.com/mcp

# 2. Start Gemini CLI and sign in
gemini
/mcp auth tesselith

2 · Ask · live in Tesselith

Ask Gemini CLI to post for you

Write a YouTube community-style update and queue it on Threads.

Used Tesselith · create_draft · add_to_queue

Queued a 480-character Threads post for the next free slot, Thursday at 12:00.

Also try:

“List my Tesselith channels.”
“What's scheduled tomorrow?”
“Draft posts for every channel announcing our webinar.”

The setup at a glance

Add the server
Sign in with /mcp auth
Check it's connected
Ask Gemini

One connection, every channel

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

1. Add the server
-s user saves it to ~/.gemini/settings.json for every project; without it, it's saved to the current project's .gemini/settings.json.
~/.gemini/settings.json
```
{
  "mcpServers": {
    "tesselith": {
      "httpUrl": "https://api.tesselith.com/mcp"
    }
  }
}
```
2. Sign in with /mcp auth
Start gemini and run /mcp auth tesselith. 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 it's connected
Run /mcp. Tesselith should show as CONNECTED with its tools. Outside a session, gemini mcp list does the same.
4. Ask Gemini
Ask Gemini to list your Tesselith channels, then to draft or queue a post. It confirms each tool call unless you trust the server.

Can I use an API key instead of signing in?

For headless runs, pass a key as a header. 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.

terminal

gemini mcp add -s user --transport http \
  --header "Authorization: Bearer $TESSELITH_API_KEY" \
  tesselith https://api.tesselith.com/mcp

What can Gemini CLI do in Tesselith?

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

Tesselith MCP tools available to Gemini CLI
	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 Gemini CLI not working with Tesselith?

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

Troubleshooting Gemini CLI with Tesselith
	Fix
Connects as SSE and fails	The entry uses url instead of httpUrl. Use httpUrl, or re-add with --transport http.
Server not found in other projects	The default scope is the project. Re-add it with -s user.
DISCONNECTED after a 401	Run /mcp auth tesselith again, or use an API key header.
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.

Gemini CLI and Tesselith: frequently asked questions

Where does Gemini CLI store the sign-in?: Tokens are saved in ~/.gemini/mcp-oauth-tokens.json.
Should I use --trust?: Only if you're happy for Gemini to call every Tesselith tool without asking. Leave it off so scheduling and publishing need your approval.

Gemini CLI’s own documentation: Google docs.

Connect other AI agents

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

Ready to connect Gemini CLI?

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

Join the waitlist

Gemini CLI + Tesselith

How to connect Gemini CLI to Tesselith

Join the waitlist MCP docs

What do I need before connecting?

You need Gemini CLI installed 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

terminal

# 1. Add the Tesselith MCP server for your user
gemini mcp add -s user --transport http tesselith https://api.tesselith.com/mcp

# 2. Start Gemini CLI and sign in
gemini
/mcp auth tesselith

2 · Ask · live in Tesselith

Ask Gemini CLI to post for you

Write a YouTube community-style update and queue it on Threads.

Used Tesselith · create_draft · add_to_queue

Queued a 480-character Threads post for the next free slot, Thursday at 12:00.

Also try:

“List my Tesselith channels.”
“What's scheduled tomorrow?”
“Draft posts for every channel announcing our webinar.”

The setup at a glance

Add the server
Sign in with /mcp auth
Check it's connected
Ask Gemini

One connection, every channel

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

1. Add the server
-s user saves it to ~/.gemini/settings.json for every project; without it, it's saved to the current project's .gemini/settings.json.
~/.gemini/settings.json
```
{
  "mcpServers": {
    "tesselith": {
      "httpUrl": "https://api.tesselith.com/mcp"
    }
  }
}
```
2. Sign in with /mcp auth
Start gemini and run /mcp auth tesselith. 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 it's connected
Run /mcp. Tesselith should show as CONNECTED with its tools. Outside a session, gemini mcp list does the same.
4. Ask Gemini
Ask Gemini to list your Tesselith channels, then to draft or queue a post. It confirms each tool call unless you trust the server.

Can I use an API key instead of signing in?

terminal

gemini mcp add -s user --transport http \
  --header "Authorization: Bearer $TESSELITH_API_KEY" \
  tesselith https://api.tesselith.com/mcp

What can Gemini CLI do in Tesselith?

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

Tesselith MCP tools available to Gemini CLI
	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 Gemini CLI not working with Tesselith?

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

Troubleshooting Gemini CLI with Tesselith
	Fix
Connects as SSE and fails	The entry uses url instead of httpUrl. Use httpUrl, or re-add with --transport http.
Server not found in other projects	The default scope is the project. Re-add it with -s user.
DISCONNECTED after a 401	Run /mcp auth tesselith again, or use an API key header.
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.

Gemini CLI and Tesselith: frequently asked questions

Where does Gemini CLI store the sign-in?: Tokens are saved in ~/.gemini/mcp-oauth-tokens.json.
Should I use --trust?: Only if you're happy for Gemini to call every Tesselith tool without asking. Leave it off so scheduling and publishing need your approval.

Gemini CLI’s own documentation: Google docs.

Connect other AI agents

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

Ready to connect Gemini CLI?

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

Join the waitlist

What do I need before connecting?

Run this

Ask Gemini CLI to post for you

The setup at a glance

One connection, every channel

How do I connect Gemini CLI to Tesselith, step by step?

1. Add the server

2. Sign in with /mcp auth

3. Check it's connected

4. Ask Gemini

Can I use an API key instead of signing in?

What can Gemini CLI do in Tesselith?

Why is Gemini CLI not working with Tesselith?

Gemini CLI and Tesselith: frequently asked questions

Connect other AI agents

Ready to connect Gemini CLI?

What do I need before connecting?

Run this

Ask Gemini CLI to post for you

The setup at a glance

One connection, every channel

How do I connect Gemini CLI to Tesselith, step by step?

1. Add the server

2. Sign in with /mcp auth

3. Check it's connected

4. Ask Gemini

Can I use an API key instead of signing in?

What can Gemini CLI do in Tesselith?

Why is Gemini CLI not working with Tesselith?

Gemini CLI and Tesselith: frequently asked questions

Connect other AI agents

Ready to connect Gemini CLI?