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PopNx MCPMCP servers for people who use AI · explained in plain words

CodePic

by abelceversion 1.0.0i★ 1iRuns in the cloud
Registry nameio.github.abelce/codepic

How to install

Overview

Description from the maker (original English)

AI agent draws editable hand-drawn diagrams (flowchart, ER, architecture) via MCP, not static images

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: Design, images & audio
  • You need to fill in: Authorization

Install

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

Passed 5/5 checks · What you ask goes through the maker’s server (codepic.cc)

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude · about 5 min

You need a CodePic key (sign up on the maker’s site, may cost money) · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1

  1. Sign up and create a CodePic key

    Open the maker’s site, sign up and create an API key for the next step. It may cost money.

    How to get a key is in the maker’s README below

  2. Open Claude’s Connectors page

    CustomizeConnectors

    CustomizeConnectors1+ Add2https://…3Add4
  3. Click “+ Add” → “Add custom connector” and fill in these 2 fields

    Copy each value into the field with the same name in Claude, then click Continue

    Name · NameCodePic
    Remote MCP server URL · Addresshttps://codepic.cc/api/mcp/mcp

    Under Request headers, add this name and value

    Header nameAuthorization
    ValueBearer <paste your key here>

    Paste the key only into the app’s field, never into a chat or to anyone

    Leave Authentication as Claude detected it, then click Add

  4. Turn it on in a chat

    +ConnectorsCodePic

  5. Try it

    Use CodePic and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using CodePic or shows a CodePic tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect CodePic yet

CodePic needs your own key to connect, but OpenAI’s help page only describes OAuth sign-in; there is no key option we could verify

What you can do instead

A · Use an app that can connect CodePic

  • You need a CodePic key (sign up on the maker’s site, may cost money) · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1
  • You need a CodePic key (sign up on the maker’s site, may cost money)
  • You need a CodePic key (sign up on the maker’s site, may cost money)
  • You need a CodePic key (sign up on the maker’s site, may cost money)

B · Others in Design, images & audio that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Works with Claude Code · about 5 min

You need a CodePic key (sign up on the maker’s site, may cost money)

  1. Sign up and create a CodePic key

    Open the maker’s site, sign up and create an API key for the next step. It may cost money.

    How to get a key is in the maker’s README below

  2. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  3. Paste this command and press Enter

    claude mcp add --transport http codepic https://codepic.cc/api/mcp/mcp --header 'Authorization: your-value'

    Replace “your-value” with your key before pressing Enter

    Paste the key only into the app’s field, never into a chat or to anyone

  4. Type /mcp in Claude Code

    You should see CodePic listed as connected

  5. Try it

    Use CodePic and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using CodePic or shows a CodePic tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor · about 5 min

You need a CodePic key (sign up on the maker’s site, may cost money)

  1. Sign up and create a CodePic key

    Open the maker’s site, sign up and create an API key for the next step. It may cost money.

    How to get a key is in the maker’s README below

  2. Click this button to open Cursor

    Open in Cursor

    Cursor asks you to confirm; click Install

  3. Fill in your key

    In the CodePic settings, Authorization is empty; add your key and save

    Paste the key only into the app’s field, never into a chat or to anyone

  4. Open the AI chat in Cursor in Agent mode

  5. Try it

    Use CodePic and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using CodePic or shows a CodePic tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code · about 5 min

You need a CodePic key (sign up on the maker’s site, may cost money)

  1. Sign up and create a CodePic key

    Open the maker’s site, sign up and create an API key for the next step. It may cost money.

    How to get a key is in the maker’s README below

  2. Click this button to open VS Code

    Open in VS Code

    VS Code asks you to confirm; click Install

  3. Fill in your key

    In the CodePic settings, Authorization is empty; add your key and save

    Paste the key only into the app’s field, never into a chat or to anyone

  4. Open the AI chat in VS Code in Agent mode

  5. Try it

    Use CodePic and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using CodePic or shows a CodePic tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

Address for apps that connect over the web

Addresshttps://codepic.cc/api/mcp/mcp

JSON settings are under “For developers” below

Stuck? Ask people who use CodePic💬 Discussion →
For developers: Terminal commands and JSON settings

Over the web

Claude Code

claude mcp add --transport http codepic https://codepic.cc/api/mcp/mcp --header 'Authorization: your-value'

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "codepic": {
      "url": "https://codepic.cc/api/mcp/mcp",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "codepic": {
      "type": "http",
      "url": "https://codepic.cc/api/mcp/mcp",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

Values you fill in

  • Authorization secret required HTTP header
    Bearer API key from https://codepic.cc/settings/api-keys (format: cpk_...)

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

At a glance

Downloads per weeki
Not on npm/PyPI
Connection
Runs in the cloud
Transport
streamable-http
Latest versioni
1.0.0
Published to registryi
Jun 16, 2026
Code last changedi
Jun 16, 2026
Maker
abelce
Registry status
Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

ClaudeGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

All apps, with pros and cons →

Related guides

What it can do

Tool names and descriptions exactly as the server reported them on Nov 10, 2026. The maker wrote them, not us; we show them as plain text.

  • get_shape_docs

    Return the full CodePic shape reference — all element types, their fields, data payloads, and JSON examples. Call get_shape_catalog first for concise shape selection and container capabilities; use this tool when you need complete fields or type-specific data (e.g. select options

  • get_shape_catalog

    Return compact machine-readable shape metadata for planning a diagram: semantic tags, geometry family, container support, recommended padding, default size, and MCP availability. Use this before create_diagram when choosing shapes or containers. Unlike get_shape_docs, this tool i

  • list_templates

    List all available CodePic diagram templates. Use this ONLY when the user has explicitly asked to browse, list, or pick from templates (e.g. "show me templates", "列出模板"). Do NOT call this as a preparatory step when the user just described a diagram they want — in that case go str

  • create_from_template

    Create a new CodePic diagram from a predefined template. Requires API Key authentication. Returns a public view URL and edit URL. **STRICT USAGE RULE — READ BEFORE CALLING:** Only call this tool when the user has **explicitly** asked to use a template. Explicit signals include ph

  • create_diagram

    Create a custom CodePic hand-drawn style diagram by specifying nodes and edges. Requires API Key authentication. Returns a public view URL. **THIS IS THE DEFAULT TOOL FOR ANY USER-DESCRIBED DIAGRAM.** Whenever the user describes a diagram they want ("draw an A/B test flowchart",

  • get_diagram

    Fetch the current state of an existing CodePic diagram. Returns a compact summary of all elements with their IDs, types, positions, and parent-child relationships. Use this before update_diagram when you need to: add nested children to existing containers, make targeted edits to

  • update_diagram

    Update an existing CodePic diagram. You can rename it, replace all nodes/edges, or add/remove individual nodes and edges. Requires API Key authentication. When responding to the user, present the returned URL as a clickable markdown link (e.g. `[Open in CodePic →](URL)`) so the u

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 11, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account abelce, which owns the repo

  • ✓ Pass

    Still maintained

    Code last changed 5 months ago

  • ✓ Pass

    Has a licence

    Uses MIT

  • ✓ Pass

    Endpoint responds

    Responded in 328 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 7 tool descriptions and found no hidden instructions to the AI

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

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User reviews

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Compared with others in Design, images & audioi

  • More stars than 77% of the other 2915 servers in this category
  • Published to the registry more recently than 11% of the other 2915 servers in this category
  • Basic checks equal to or better than 100% of the other 2915 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 CodePic safe?

It passed 5 of 5 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?

You need to fill in: Authorization

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 5 months ago, and the latest version (1.0.0) reached the registry 5 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 Business and above.

What can I use instead?

In the same category: Next AI Draw.io, Pascal 3D Editor, screenpipe

Alternatives

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

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

Next AI Draw.io

draw.io diagrams your AI agent draws on a live browser canvas that you can also edit by hand

by DayuanJiangWidely used↓ 21.7K/wk★ 36.9KUpdated 4 days ago

Runs on your computer

Pascal 3D Editor

Create, inspect, validate, and save editable 3D building scenes with Pascal's MCP server.

by pascalorgWidely used↓ 1K/wk★ 25.4KUpdated yesterday

Computer or cloud✓ pascal.app

screenpipe

Search your local screen recordings, audio transcripts, and computer activity from screenpipe.

by screenpipeWidely used↓ 6.6K/wk★ 22.3KUpdated 8 days ago

Runs on your computer

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.

CodePic MCP

Let your AI coding agent draw editable diagrams — not another Mermaid snippet you have to paste.

Generate editable hand-drawn diagrams from Cursor, Claude Desktop, and other MCP clients.

CodePic MCP lets an AI coding agent create diagrams directly in CodePic instead of returning static images, Mermaid snippets, or JSON that you have to paste manually. The result opens in the CodePic editor, where you can still move shapes, edit labels, adjust connectors, share a read-only link, and export PNG or JSON.

Quick Start

It's a remote Streamable HTTP server — no local install. First create a free API key (the cpk_... token) at https://codepic.cc/settings/api-keys (sign in → *New API key* → copy), then add the config for your client and replace cpk_your_api_key_here.

Cursor

Create .cursor/mcp.json in your project:

{

"mcpServers": { "codepic": { "url": "https://codepic.cc/api/mcp/mcp", "headers": { "Authorization": "Bearer cpk_your_api_key_here" } } } }

Claude Code

Add it with one command:

claude mcp add --transport http codepic https://codepic.cc/api/mcp/mcp \

--header "Authorization: Bearer cpk_your_api_key_here"

Claude Desktop

Add CodePic to your claude_desktop_config.json:

{

"mcpServers": { "codepic": { "type": "streamableHttp", "url": "https://codepic.cc/api/mcp/mcp", "headers": { "Authorization": "Bearer cpk_your_api_key_here" } } } }

VS Code (GitHub Copilot)

Add CodePic to .vscode/mcp.json:

{

"servers": { "codepic": { "type": "http", "url": "https://codepic.cc/api/mcp/mcp", "headers": { "Authorization": "Bearer cpk_your_api_key_here" } } } }

Codex CLI

Add CodePic to ~/.codex/config.toml:

[mcp_servers.codepic]

url = "https://codepic.cc/api/mcp/mcp"

[mcp_servers.codepic.headers] Authorization = "Bearer cpk_your_api_key_here"

Windsurf

Add CodePic to ~/.codeium/windsurf/mcp_config.json:

{

"mcpServers": { "codepic": { "serverUrl": "https://codepic.cc/api/mcp/mcp", "headers": { "Authorization": "Bearer cpk_your_api_key_here" } } } }

Cline

Open Cline's MCP settings (cline_mcp_settings.json) and add:

{

"mcpServers": { "codepic": { "type": "streamableHttp", "url": "https://codepic.cc/api/mcp/mcp", "headers": { "Authorization": "Bearer cpk_your_api_key_here" } } } }

Other clients

Any MCP client that supports remote Streamable HTTP works — point it at the endpoint https://codepic.cc/api/mcp/mcp with header Authorization: Bearer cpk_....

Available MCP Tools

  • list_templates - list available diagram templates.
  • create_from_template - create a new diagram from a template.
  • create_diagram - create a custom diagram with nodes and edges.
  • get_diagram - fetch the current diagram structure by documentId before making targeted follow-up edits.
  • update_diagram - update an existing diagram by replacing, adding, or removing nodes and edges.

Iterate on an Existing Diagram

Use get_diagram when you already have a CodePic document and want the AI agent to inspect it before changing it. This keeps the workflow grounded in the current diagram instead of guessing from memory.

Example prompt:

Use get_diagram to inspect document <documentId>, then update the diagram by adding a Redis cache between the API server and Postgres database.

Examples

ExampleWhat It GeneratesPrompt
System architectureNext.js SaaS architecture diagramNext.js + Supabase + Postgres + R2 + Stripe + Vercel
Database ER diagramSaaS billing data modelUsers, teams, subscriptions, invoices, payments
OAuth sequence flowPKCE login sequence diagramBrowser, app server, identity provider, database
CI/CD pipelineGitHub Actions deployment pipelineType-check, lint, build, preview, production
Data pipelineAnalytics pipeline diagramSegment, Snowflake, dbt, Metabase
Iterate existing diagramRead an existing document, then update itget_diagram + update_diagram

Useful Links

  • CodePic: https://codepic.cc
  • MCP guide: https://codepic.cc/tools/mcp
  • API keys (get yours): https://codepic.cc/settings/api-keys
  • ER diagram maker: https://codepic.cc/tools/er-diagram-maker
  • Flowchart maker: https://codepic.cc/tools/flowchart-maker
  • Wireframe tool: https://codepic.cc/tools/wireframe-tool

Community Post Angle

If you share this project, lead with the workflow:

I connected Cursor to a diagram editor through MCP, so it can generate editable architecture diagrams instead of Mermaid text.

Avoid generic product claims like "best diagram tool". Developer communities respond better to a concrete workflow and real examples.

License

MIT — see LICENSE.