Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Create, send, negotiate, sign, and track contracts with Common Paper.
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://api.commonpaper.com/mcpRun this in your terminal
claude mcp add --transport http contracts https://api.commonpaper.com/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"contracts": {
"url": "https://api.commonpaper.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": {
"contracts": {
"type": "http",
"url": "https://api.commonpaper.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://api.commonpaper.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.
We have not read this server’s tool list yet; we check endpoints in rotation.
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 6, 2026
The registry name was verified against the domain commonpaper.com (the registry checks domain ownership)
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Not checked yet; we check endpoints in rotation
Not checked yet; we check endpoints in rotation
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 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.
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 (1.0.1) reached the registry 31 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, Safe Fetch
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.
MCP server for fetching URLs, safe against SSRF, DNS rebinding, and redirect-to-internal attacks.
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.
Query, create, and manage your contracts in Common Paper from your AI assistant, in plain English. Common Paper runs a remote MCP server that works with any MCP client, including GitHub Copilot, VS Code, Claude, Cursor, and ChatGPT.
This repo also packages the server as a plugin for Claude Cowork, Claude Code, Cursor, Grok Build, and Gemini CLI. The plugin bundles two things:
https://api.commonpaper.com/mcp). You sign in with your Common Paper account through OAuth, so there's no API key to copy or store.For a few things the connector doesn't cover yet (filtering by company name or end date, uploading Word files as custom terms, and creating a brand-new account), the skill falls back to the Common Paper REST API.
How many signed contracts do we have, and how many are still waiting on the other side?Do we have an active NDA with Northwind? If not, draft one to sam@northwind.com from me.List every agreement that ends in the next 90 days as a table with counterparty, type, and end date.Create a CSA template with Delaware law, a 1x fees liability cap, and net-30 annual invoicing.Set up my Common Paper account.https://api.commonpaper.com/mcpAdd this to .vscode/mcp.json:
{
"servers": { "common-paper": { "type": "http", "url": "https://api.commonpaper.com/mcp" } } }
Start the server from the file or the MCP servers list, then sign in to Common Paper when prompted.
codex mcp add common-paper --url https://api.commonpaper.com/mcp
codex mcp login common-paper
The first command adds the server to ~/.codex/config.toml. The second opens a browser so you can sign in to Common Paper.
Setup for other assistants (ChatGPT, Cursor, Notion, Perplexity, and more) is in Connecting Common Paper to other AI assistants.
The plugin adds a skill on top of the MCP server with Common Paper workflows and safe defaults.
Install Common Paper from the plugin directory, then connect when prompted and sign in to Common Paper.
Install from the plugin directory with /plugin, or add this repo as a marketplace directly:
claude plugin marketplace add CommonPaper/ai-plugin
claude plugin install commonpaper@commonpaper
Then run /mcp, choose common-paper, and sign in to Common Paper.
Install Common Paper from the Cursor Marketplace, or add this repo to your team marketplace (Dashboard > Plugins & MCPs). Then open the Customize page, find common-paper under MCP servers, and sign in to Common Paper.
To try a local copy, clone this repo into ~/.cursor/plugins/local/commonpaper.
Add this repo as a marketplace and install the plugin. --trust lets Grok attach the bundled Common Paper connector.
grok plugin marketplace add CommonPaper/ai-plugin
grok plugin install commonpaper --trust grok plugin enable commonpaper
Then sign in to Common Paper when Grok prompts you to connect common-paper.
gemini extensions install https://github.com/CommonPaper/ai-plugin
Then run /mcp auth common-paper in Gemini CLI and sign in to Common Paper.
If you previously installed CommonPaper/claude-skill, you can remove it after installing the plugin. If the plugin ever needs an API key for the REST fallback, it copies a key saved by the old skill to ~/.config/commonpaper/cp-api-token automatically.
curl and network access to api.commonpaper.com. Custom terms and custom templates must be enabled for your organization to use those features.~/.config/commonpaper/cp-api-token with owner-only permissions (deleting it at the end of the task if you said not to keep it), and never prints it in chat.| Problem | Fix |
|---|---|
| The Common Paper tools aren't connected | Cowork: Customize > Connectors > Common Paper > Connect. Claude Code: run /mcp, choose common-paper, and sign in. Cursor: open the Customize page, find common-paper under MCP servers, and connect. Gemini CLI: run /mcp auth common-paper. Codex CLI: run codex mcp login common-paper. VS Code: start common-paper from .vscode/mcp.json or the MCP servers list. Other clients: connect https://api.commonpaper.com/mcp from the client's MCP settings. |
| An agreement you expect is missing | The API only covers agreements sent by your organization. Agreements you received from another organization aren't included. |
| "You've reached your plan limit" on a new account | Usually means your email address isn't verified yet. Verify it, then try again. |
| 404 on custom terms or custom templates | The feature isn't enabled for your organization. Contact Common Paper support. |
| REST fallback fails with a network error | Your environment can't reach api.commonpaper.com directly. The assistant will fall back to what the connector supports. |
| Search by company name is slow on a large account | Without the REST fallback, the assistant has to page through agreements. Allow network access to api.commonpaper.com so it can filter server-side. |
.claude-plugin/plugin.json Plugin manifest (Claude, Grok Build)
.claude-plugin/marketplace.json Lets this repo be added as a marketplace (Claude) .cursor-plugin/plugin.json Plugin manifest (Cursor) .cursor-plugin/marketplace.json Lets this repo be added as a marketplace (Cursor) .grok-plugin/marketplace.json Lets this repo be added as a marketplace (Grok Build) .mcp.json Common Paper MCP connector (Claude, Grok Build) mcp.json Common Paper MCP connector (Cursor) gemini-extension.json Extension manifest and connector (Gemini CLI) registry/server.json MCP Registry entry (com.commonpaper/contracts) skills/commonpaper/SKILL.md Core skill skills/commonpaper/references/ REST API, templates, custom terms, onboarding details
MIT