Can Le Chat use an API key?

Yes. If Le Chat asks for a bearer token instead of signing in, paste a Tesselith API key.

Can I write posts in other languages?

Yes. Le Chat writes in your language and Tesselith schedules the text as written.

Mistral Le Chat + Tesselith

How to connect Mistral Le Chat to Tesselith

Add Tesselith to Mistral's Le Chat as a custom MCP connector and schedule social posts by chatting. Mistral Le Chat 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 Le Chat account where you're an admin (on Free, Pro and Student the account owner is) 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

Connectors → + Add Connector → Custom MCP Connector

Connector name:  tesselith
Server URL:      https://api.tesselith.com/mcp

2 · Ask · live in Tesselith

Ask Mistral Le Chat to post for you

Planifie ce post sur Instagram demain à 18h.

Used Tesselith · create_draft · schedule_post

C'est programmé pour demain à 18h00 sur Instagram.

Also try:

“List my Tesselith channels.”
“What's queued this week?”
“Draft a post in French and English for Mastodon.”

The setup at a glance

Add a custom MCP connector
Connect and sign in
Choose what runs without asking
Ask Le Chat

One connection, every channel

Connect your accounts in Tesselith once. From then on Mistral Le Chat 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 Mistral Le Chat to Tesselith, step by step?

1. Add a custom MCP connector
Open Connectors, click + Add Connector and choose the Custom MCP Connector tab. The name can't contain spaces, so use tesselith.
2. Connect and sign in
Click Connect. Le Chat detects the sign-in automatically. A Tesselith window opens. Sign in, pick the workspace, untick anything you don't want the agent to do, and click Allow access.
3. Choose what runs without asking
Under Connectors → My Connectors, open Tesselith's Functions tab. Only set Always allow on read-only tools.
4. Ask Le Chat
Enable the connector in a chat and ask it to list your Tesselith channels.

What can Mistral Le Chat do in Tesselith?

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

Tesselith MCP tools available to Mistral Le Chat
	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 Mistral Le Chat not working with Tesselith?

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

Troubleshooting Mistral Le Chat with Tesselith
	Fix
No Connect button	Only admins can add connectors. Ask your organization's admin.
Sign-in window doesn't open	Allow pop-ups for Le Chat.
Connector shows disconnected	Remove it and add it again.
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.

Mistral Le Chat and Tesselith: frequently asked questions

Can Le Chat use an API key?: Yes. If Le Chat asks for a bearer token instead of signing in, paste a Tesselith API key.
Can I write posts in other languages?: Yes. Le Chat writes in your language and Tesselith schedules the text as written.

Mistral Le Chat’s own documentation: Mistral AI docs.

Connect other AI agents

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Ready to connect Mistral Le Chat?

Create your Tesselith account, connect your channels, and Mistral Le Chat can start scheduling in minutes.

Join the waitlist

How to connect Mistral Le Chat to Tesselith

One connection, every channel

Connect your accounts in Tesselith once. From then on Mistral Le Chat 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

RedditSoon

PinterestSoon

Bluesky

Mastodon

Dev.toSoon

HashnodeSoon

How do I connect Mistral Le Chat to Tesselith, step by step?

1. Add a custom MCP connector

Open Connectors, click + Add Connector and choose the Custom MCP Connector tab. The name can't contain spaces, so use tesselith.

2. Connect and sign in

Click Connect. Le Chat detects the sign-in automatically. A Tesselith window opens. Sign in, pick the workspace, untick anything you don't want the agent to do, and click Allow access.

3. Choose what runs without asking

Under Connectors → My Connectors, open Tesselith's Functions tab. Only set Always allow on read-only tools.

4. Ask Le Chat

Enable the connector in a chat and ask it to list your Tesselith channels.

What can Mistral Le Chat do in Tesselith?

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

Tesselith MCP tools available to Mistral Le Chat
	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 Mistral Le Chat not working with Tesselith?

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

Troubleshooting Mistral Le Chat with Tesselith
	Fix
No Connect button	Only admins can add connectors. Ask your organization's admin.
Sign-in window doesn't open	Allow pop-ups for Le Chat.
Connector shows disconnected	Remove it and add it again.
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.