ddbx — insider dealings

Name: ddbx — insider dealings
Author: jonwillington

by jonwillingtonversion 1.0.0i★ –iRuns in the cloud

Registry nameio.github.jonwillington/ddbx

Install

Overview

Description from the maker (original English)

Search rated insider dealings across the UK, US, Sweden, Netherlands and US Congress.

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: Search & AI memory

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://api.ddbx.uk/mcp

Run this in your terminal

claude mcp add --transport http ddbx https://api.ddbx.uk/mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "ddbx": {
      "url": "https://api.ddbx.uk/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": {
    "ddbx": {
      "type": "http",
      "url": "https://api.ddbx.uk/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://api.ddbx.uk/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 jonwillington, 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 Search & AI memoryi

More stars than 0% of the other 7259 servers in this category
Published to the registry more recently than 45% of the other 7259 servers in this category
Basic checks equal to or better than 100% of the other 7259 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 ddbx — insider dealings 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: Context7, Codebase Memory, Exa

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

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated yesterday

Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago

Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated last month

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.

ddbx plugin (ChatGPT + Codex)

An Agent Plugins 1.0 package that puts ddbx insider dealings into ChatGPT and Codex. It bundles:

The ddbx MCP server (https://api.ddbx.uk/mcp): read-only, no auth, thin tier only. The server lives in ddbx-data/worker/mcp.ts; this repo only points at it.
Three skills that teach the assistant how to use the tools well:
company-insiders: insider activity at one company (UK, US, SE, NL, Congress)
market-scan: the notable dealings across a market over a period
daily-recap: ddbx's published daily summary for the UK or US

.agents/plugins/marketplace.json   repo marketplace, so Codex can add this repo directly

plugins/ddbx/ plugin.json root manifest, with the com.openai interface block mcp.json the remote MCP server skills/ /SKILL.md workflows skills/ /agents/openai.yaml display name + MCP dependency per skill assets/icon.png, logo.png from ddbx-site/public/ios-app-icon-uk.png SUBMISSION.md listing copy and test cases for the submission portal

Connect

The hosted server is public, read-only and needs no API key: https://api.ddbx.uk/mcp.

Claude: Customize → Connectors → Add custom connector → paste the URL.
Cursor / VS Code: add an HTTP MCP server named ddbx with that URL.
Claude Code: claude mcp add --transport http ddbx https://api.ddbx.uk/mcp
Gemini CLI: gemini extensions install https://github.com/jonwillington/ddbx-plugin
Codex: codex plugin marketplace add jonwillington/ddbx-plugin
Smithery: jonathanwillington/ddbx

The repository also carries manifests for the official MCP Registry, Cursor Marketplace, Gemini CLI and OpenAI Agent Plugins.

Contract with ddbx-data

The skills name the MCP tools (search_dealings, get_dealing, get_company, get_daily_summary, search, fetch) and their arguments. Renaming a tool or an argument in worker/mcp.ts breaks this plugin as well as any cached connector: change it additively, then update the skills here.

The skills also restate the thin-tier posture: the analysis prose is not served, so the assistant links to each filing's url and never invents a reason for a rating. If the MCP ever serves analysis behind auth, update the Rules sections.

Test in Codex

codex plugin marketplace add ./          # from this repo root

codex plugin marketplace list

Then enable it in ~/.codex/config.toml:

[plugins."ddbx@ddbx"]

enabled = true

Try: "What did UK directors buy today?", "Any insider buying at Dunelm?", "What has Congress traded in NVDA?".

Once this repo is on GitHub: codex plugin marketplace add jonwillington/ddbx-plugin.

Test in ChatGPT

Settings → Security and login → turn on Developer mode.
ChatGPT Plugins → + → server URL https://api.ddbx.uk/mcp, authentication None.
Copy the plugin_asdk_app_… id from the browser URL.
To bundle the skills with it, add plugins/ddbx/.app.json:

   { "apps": { "ddbx": { "plugin_asdk_app_<id>": {} } } }

and "apps": "./.app.json" inside extensions.com.openai in plugin.json.

Test in a Work chat with @ddbx.

Publish

Your workspace: ChatGPT Plugins → Personal → the plugin's ⋯ menu → Publish. This does not list it publicly.
Public directory: the submission portal. Needs a verified developer identity, and the domain challenge served at https://api.ddbx.uk/.well-known/openai-apps-challenge (a ddbx-data change). Listing copy and the required test cases are in SUBMISSION.md.

ddbx — insider dealings

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 Search & AI memoryi

Common questions

Alternatives

Context7

Codebase Memory

Exa

README from the maker

ddbx plugin (ChatGPT + Codex)

Connect

Contract with ddbx-data

Test in Codex

Test in ChatGPT

Publish