Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
A phone for your AI: CG rings or texts you when a job is done, and calls businesses for you.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
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Works in Claude on the web, desktop and mobile:
https://connect.callcg.com/mcpRun this in your terminal
claude mcp add --transport http cg https://connect.callcg.com/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"cg": {
"url": "https://connect.callcg.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.
Paste into .vscode/mcp.json in your project
{
"servers": {
"cg": {
"type": "http",
"url": "https://connect.callcg.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:
https://connect.callcg.com/mcpMenu 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.
The server asks you to sign in before it lists its tools.
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
The publisher (callcg.com) is not the repo owner (711webservices); someone else may have listed it
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Responded in 456 ms (HTTP 401)
Declares OAuth sign-in, so your AI app can take you to log in
Not checked yet; we read the tool list when we check the endpoint
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 2 of 3 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.
The registry does not list a required key, though some servers ask you to sign in on first use.
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.
The GitHub repo last changed –, and the latest version (2.0.0) reached the registry 2 days ago.
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.
In the same category: Spec Driven Development, Remote Desktop Commander, FactLot
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
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Cited CRE facts and deterministic calculators for agents: rent, CAM, debt sizing, IRR, parcel IDs.
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.
A phone for your AI. Install this, give Claude your mobile number, read it the code that arrives, and from then on Claude can ring or text you the moment a long job is done, and have CG phone people and businesses for you.
claude plugin marketplace add 711webservices/cg-plugin
claude plugin install cg@cg-plugin
Then, in Claude Code: "set up CG".
No plugin? One line does the same:
claude mcp add --transport http --scope user cg-start https://connect.callcg.com/mcp/start
No terminal at all? The Claude app, ChatGPT and Grok take CG with one paste: see callcg.com/start.
claude mcp add --transport http --scope user cg . Restart Claude Code.That is the whole sign-up. Your number is your account; there is no password.
It is two-way. Write to CG from your phone ("Claude: the build looks wrong, check the logs") and Claude picks it up with my_messages, or waits for your answer with wait_for_messages.
When the job finishes, Claude calls call_me (CG rings and speaks one sentence, and texts the details) or text_me (by SMS or WhatsApp, as you asked). For calls to other people, CG dials, presses menu keys, waits on hold, talks to whoever answers, and reports back.
A 7-day free trial on CG's shared number, no card: 10 minutes of calls with CG, 10 texts and 2 questions or document reviews by the AI council, one trial per mobile number. Calls CG makes for you come with the CG plan: $9 a month with your own number, with your first payment back in full if you ask within 30 days; ask CG to start it, or see callcg.com. US and UK only for now.
Cursor, Codex, Gemini CLI, VS Code, Windsurf, ChatGPT and Claude.ai take the same private link. Any MCP client can run the two set-up tools at https://connect.callcg.com/mcp/start; setup snippets for each are at callcg.com/agents.
## Reaching me
CG is connected (MCP server cg). When I ask to be told when a job is done: finish, then call call_me with a one-sentence say (or text_me, via sms/whatsapp when I named one). Never report a call or text as made unless the tool result says so.
.mcp.json: the set-up server (cg-start, two tools, no key).skills/cg/SKILL.md: how Claude sets you up and uses the cg tools honestly..claude-plugin/: the plugin and marketplace manifests.The CG service itself is not in this repo. Privacy and terms: callcg.com/privacy, callcg.com/terms.