Contexter

Name: Contexter
Author: maaakso

by maaaksoversion 1.0.0i★ –iRuns in the cloud

Registry nameio.github.maaakso/contexter

Install

Overview

Description from the maker (original English)

Share one project context across ChatGPT, Claude, Telegram and any MCP client.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Chat & email

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://contexterai.com/mcp

Run this in your terminal

claude mcp add --transport http contexter https://contexterai.com/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "contexter": {
      "url": "https://contexterai.com/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "contexter": {
      "type": "http",
      "url": "https://contexterai.com/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://contexterai.com/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account maaakso, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Chat & emaili

More stars than 0% of the other 1773 servers in this category
Published to the registry more recently than 27% of the other 1773 servers in this category
Basic checks equal to or better than 100% of the other 1773 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Contexter safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Vexa, emailmd, MCP WhatsApp Cloud

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Vexa

by Vexa-ai

Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.

Runs in the cloud★ 2,949Apache-2.0Updated 2 months ago

Install

emailmd

by anypost

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

Computer or cloud★ 1,385MITUpdated 31 days ago

Install

MCP WhatsApp Cloud

by codespar

MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API

Runs on your computer★ 277MITUpdated 5 months ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Contexter

Share one AI context across ChatGPT, Claude and Telegram.

Save what you worked out with one AI, continue it in another — and share the context with people in Telegram, who keep working on it in their own AI.

Contexter is a hosted remote MCP server. This repository is its public documentation: the connection details, the tool catalogue and what does and does not move between tools. The server itself is hosted and closed-source — there is nothing to install and no key to manage.

Homepage: https://contexterai.com
MCP endpoint: https://contexterai.com/mcp
Transport: Streamable HTTP
Authentication: OAuth 2.1 (with protected-resource metadata discovery)
Telegram bot: @ai_contexter_bot
Status: early access, free, open to everyone

The problem it solves

You plan something in ChatGPT. You continue it in Claude. You discuss it in a Telegram group. Every hop, you re-explain the project — and the person you are working with cannot pick it up at all, because your history lives inside your account.

Contexter gives the project one context instead of one copy per tool. Both assistants read and write the same records. You can share that context with a person, and they continue it in whichever AI *they* use.

Nothing is imported automatically. Connecting an assistant does not hand Contexter your chat history. Only the records you explicitly save — or ask your assistant to save — end up in a context.

Connecting

Claude

Add a custom connector pointing at https://contexterai.com/mcp. Claude discovers the OAuth endpoints on its own; you sign in through Telegram and approve access once.

ChatGPT

Add Contexter as a connector with the same URL. Same OAuth flow.

Any other MCP client

Anything that speaks Streamable HTTP with OAuth 2.1 works the same way — point it at https://contexterai.com/mcp.

Full walkthroughs, including what travels between each pair of tools:

What you can ask an assistant to do

Once connected, you talk to your assistant normally. For example:

Create a context called "Kitchen renovation" in Contexter and put my measurement notes in it.

What is in my Dolomites hike context?

Save this comparison to the AI-bot context and share it with Anna.

Tool catalogue

Twenty-six tools in four groups. Write tools require a human decision — the client acts for a person, and irreversible steps (sharing, publishing to a room, deletion) are confirmed rather than assumed.

Reading (8) — list_contexts, get_context_card, get_context_feed, list_records, list_sources, get_artifact, get_file, read_image_content

Saving (7) — save_artifact, save_file, create_context, add_records_to_context, update_artifact, update_context, set_context_notifications

Sharing (5) — share_context, revoke_context_access, check_share_audience, deliver_to_chat, invite_room_to_context

Removing (6) — remove_record_from_context, delete_record, leave_context, restore_record, delete_context, restore_context

Scopes, response shapes and the reasoning behind each one: contexterai.com/developers.

Use cases

Two assistants, one project. Research in ChatGPT, drafting in Claude. The plan lives in a context both reach, so neither one starts from an empty page.

Two people, two different AIs. You share the context, not a document export. The other person opens it from whatever assistant they already pay for.

A group chat that does not lose its decisions. Add the bot to a Telegram group. Messages from the people who opt in become records; the context built from the chat is shared with those same people, and each of them works on it in their own AI, outside the group.

Privacy

AI chat history is never imported. Saving is always explicit.
A record's visibility is the visibility of the context it is in. There are no hidden audiences: every shared context shows exactly who can see it.
In a Telegram group, only the messages of people who joined in are collected. Anyone who has not is not collected at all.
Deletion is reversible for 7 days.

Support

Open an issue here, or message @ai_contexter_bot in Telegram. Questions and answers for people already using it: contexterai.com/help.

Contexter

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Chat & emaili

Common questions

Alternatives

Vexa

emailmd

MCP WhatsApp Cloud

README from the maker

Contexter

The problem it solves

Connecting

Claude

ChatGPT

Any other MCP client

What you can ask an assistant to do

Tool catalogue

Use cases

Privacy

Support