OpenClaw + Tesselith

How to connect OpenClaw to Tesselith

Add Tesselith to OpenClaw and let your open-source agent plan and schedule social posts. OpenClaw 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.

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What do I need before connecting?

You need OpenClaw 2026.5.8 or later (earlier versions leaked custom headers on redirects) 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 server (set the transport explicitly)
openclaw mcp add tesselith --url https://api.tesselith.com/mcp --transport streamable-http

# 2. Sign in (stop the gateway first)
openclaw gateway stop
openclaw mcp login tesselith

# 3. Check it
openclaw mcp probe tesselith

2 · Ask · live in Tesselith

Ask OpenClaw to post for you

Queue three Bluesky posts from my notes file.

Used Tesselith · create_draft · add_to_queue

Queued three posts in your next three Bluesky slots.

Also try:

“List my Tesselith channels.”
“What's in my queue?”
“Move Friday's post to Monday at 10am.”

The setup at a glance

Add the server
Sign in
Probe and reload
Ask OpenClaw

One connection, every channel

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

1. Add the server

openclaw mcp add writes the server to your config. Set the transport to streamable-http; OpenClaw may otherwise try SSE.

config (JSON5)

{
  mcp: {
    servers: {
      tesselith: {
        url: "https://api.tesselith.com/mcp",
        transport: "streamable-http",
        auth: "oauth",
        enabled: true,
      },
    },
  },
}

2. Sign in
Stop the gateway, then run openclaw mcp login tesselith. A Tesselith window opens. Sign in, pick the workspace, untick anything you don't want the agent to do, and click Allow access. If the browser can't reach OpenClaw, use the --code command it prints. In the Control UI, Settings → MCP has a Sign in button too.
3. Probe and reload
Run openclaw mcp probe tesselith (or doctor --probe) to check the connection, start the gateway again, and run openclaw mcp reload after config edits.
4. Ask OpenClaw
Ask it to list your Tesselith channels, then to draft or queue posts.

What can OpenClaw do in Tesselith?

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

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

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

Troubleshooting OpenClaw with Tesselith
	Fix
Fails on connect	The transport defaulted to SSE. Set transport to streamable-http.
mcp login does nothing	Stop the gateway first with openclaw gateway stop.
doctor flags your key	A literal key in config is flagged. Use OpenClaw's secret mechanism or the browser sign-in.
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.

OpenClaw and Tesselith: frequently asked questions

Can OpenClaw use an API key?: Yes. Set an Authorization header with a Tesselith key in the Control UI under Settings → MCP, ideally through OpenClaw's secret storage.
Which OpenClaw version do I need?: 2026.5.8 or later, which fixed a header leak on cross-origin redirects.

OpenClaw’s own documentation: OpenClaw docs.

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Ready to connect OpenClaw?

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

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How to connect OpenClaw to Tesselith

# 1. Add the server (set the transport explicitly) openclaw mcp add tesselith --url https://api.tesselith.com/mcp --transport streamable-http # 2. Sign in (stop the gateway first) openclaw gateway stop openclaw mcp login tesselith # 3. Check it openclaw mcp probe tesselith

One connection, every channel

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

1. Add the server

openclaw mcp add writes the server to your config. Set the transport to streamable-http; OpenClaw may otherwise try SSE.

config (JSON5)

{
  mcp: {
    servers: {
      tesselith: {
        url: "https://api.tesselith.com/mcp",
        transport: "streamable-http",
        auth: "oauth",
        enabled: true,
      },
    },
  },
}

2. Sign in

Stop the gateway, then run openclaw mcp login tesselith. A Tesselith window opens. Sign in, pick the workspace, untick anything you don't want the agent to do, and click Allow access. If the browser can't reach OpenClaw, use the --code command it prints. In the Control UI, Settings → MCP has a Sign in button too.

3. Probe and reload

Run openclaw mcp probe tesselith (or doctor --probe) to check the connection, start the gateway again, and run openclaw mcp reload after config edits.

4. Ask OpenClaw

Ask it to list your Tesselith channels, then to draft or queue posts.

What can OpenClaw do in Tesselith?

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

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

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

Troubleshooting OpenClaw with Tesselith
	Fix
Fails on connect	The transport defaulted to SSE. Set transport to streamable-http.
mcp login does nothing	Stop the gateway first with openclaw gateway stop.
doctor flags your key	A literal key in config is flagged. Use OpenClaw's secret mechanism or the browser sign-in.
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.

OpenClaw and Tesselith: frequently asked questions

Can OpenClaw use an API key?

Yes. Set an Authorization header with a Tesselith key in the Control UI under Settings → MCP, ideally through OpenClaw's secret storage.

Which OpenClaw version do I need?

2026.5.8 or later, which fixed a header leak on cross-origin redirects.

OpenClaw’s own documentation: OpenClaw docs.