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

Hackle

by hackle-ioversion 1.0.0i★ 3iRuns in the cloud
Registry nameio.github.hackle-io/hackle-mcp

Install

Overview

Description from the maker (original English)

Remote MCP server for the Hackle Admin API: experiments, feature flags, remote config, messaging.

PopNx MCP’s three pillars

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

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

You need

Which app do you use?

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

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3Connect4
https://mcp.hackle.io/mcp

Run this in your terminal

claude mcp add --transport http hackle https://mcp.hackle.io/mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "hackle": {
      "url": "https://mcp.hackle.io/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": {
    "hackle": {
      "type": "http",
      "url": "https://mcp.hackle.io/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:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3Connect4
https://mcp.hackle.io/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.

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

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

All apps, with pros and cons →

What it can do

The server asks you to sign in before it lists its tools.

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 hackle-io, which owns the repo

  • ✓ Pass

    Still maintained

    Code last changed 5 months ago

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✓ Pass

    Endpoint responds

    Responded in 428 ms (HTTP 401)

  • ✓ Pass

    Sign-in with OAuth

    Declares OAuth sign-in, so your AI app can take you to log in

  • … 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 89% of the other 1928 servers in this category
  • Published to the registry more recently than 12% of the other 1928 servers in this category
  • Basic checks equal to or better than 100% of the other 1928 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 Hackle safe?

It passed 4 of 4 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 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 in developer mode.

What can I use instead?

In the same category: Inbox Zero, Agent-Native Mail, Agent-Native Dispatch

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

Inbox Zero

Search Gmail and Outlook, save drafts, manage email rules, and view email stats.

by elie222Widely used★ 13KUpdated 40 days ago

Runs in the cloud

Agent-Native Mail

Agent-Native Superhuman - email client with keyboard shortcuts and AI triage

by BuilderIOWidely used★ 7.7KUpdated 2 months ago

Runs in the cloud

Agent-Native Dispatch

Central Slack/Telegram router with jobs, memory, approvals, and A2A delegation

by BuilderIOWidely used★ 7.7KUpdated 2 months ago

Runs in the cloud

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.

Hackle MCP Server

[!WARNING]

## ⚠️ This local npm package is deprecated — use the remote MCP server

The Hackle MCP server is now available as a remote server, and this local npm package is deprecated. The remote server requires no npm or Node.js setup, updates automatically, works in the browser, and is where all new tools (such as messaging statistics and Kakao/Text message queries) ship.

This package will no longer receive updates or new tools. Existing installations keep working for now, but please migrate to the remote server.

👉 Migration guide: https://docs.hackle.io/external-link/model-context-protocol/migration

### How to connect to the remote server

1. Add a custom connector in claude.ai (web) or Claude Desktop via Customization → Connectors → + Add Custom Connector, using the remote MCP server URL:

`

https://mcp.hackle.io/mcp

`

2. Enter your existing Hackle API key in the authentication screen — your API key remains unchanged.

3. Once connected, you can optionally remove the local server entry from your claude_desktop_config.json.

A Model Context Protocol server for Hackle API providing tools and resources for querying A/B Test data.

Features

Tools
Experiment List Tool
  • Name: experiment-list
  • Description: Fetches a paginated list of A/B test experiments with search functionality.
  • Parameters:
  • pageNumber: Page number (default: 1)
  • pageSize: Number of items per page (default: 100)
  • searchKeyword: Search keyword (optional)
Experiment Detail Tool
  • Name: experiment-detail
  • Description: Retrieves detailed information for a specific A/B test experiment.
  • Parameters:
  • experimentId: Experiment ID
In-App Message List Tool
  • Name: in-app-message-list
  • Description: Fetches a paginated list of in-app messages with search functionality.
  • Parameters:
  • pageNumber: Page number (default: 1)
  • pageSize: Number of items per page (default: 100)
  • searchKeyword: Search keyword (optional)
In-App Message Detail Tool
  • Name: in-app-message-detail
  • Description: Retrieves detailed information for a specific in-app message.
  • Parameters:
  • inAppMessageId: In-app message ID
Push Message List Tool
  • Name: push-message-list
  • Description: Fetches a paginated list of push messages with search functionality.
  • Parameters:
  • pageNumber: Page number (default: 1)
  • pageSize: Number of items per page (default: 100)
  • searchKeyword: Search keyword (optional)
Push Message Detail Tool
  • Name: push-message-detail
  • Description: Retrieves detailed information for a specific push message.
  • Parameters:
  • pushMessageId: Push message ID
Active User Series Tool
  • Name: active-user-series
  • Description: Retrieves time-series data of active users. Available in daily, weekly, and monthly units.
  • Parameters:
  • unit: Time unit (DAY, WEEK, MONTH) (default: DAY)
  • date: Date (optional)
Retention Series Tool
  • Name: retention-series
  • Description: Retrieves time-series data of user retention. Available in daily, weekly, and monthly units.
  • Parameters:
  • unit: Time unit (DAY, WEEK, MONTH) (default: DAY)
  • date: Date (optional)
Stickiness Series Tool
  • Name: stickiness-series
  • Description: Retrieves time-series data of user stickiness (return visit frequency). Available in weekly and monthly units.
  • Parameters:
  • unit: Time unit (WEEK, MONTH) (default: WEEK)
  • date: Date (optional)
Data Report List Tool
  • Name: data-report-list
  • Description: Retrieves all data report metadata.
Data Report Detail Tool
  • Name: data-report-detail
  • Description: Retrieves single data report's detail. It will provide analytics chart id and type inside data report. It is recommended to use Analytics Chart Detail Tool to get further information of each chart.
  • Parameters:
  • dataReportId: Data report's id. This can be found in response of Data Report List Tool.
Analytics Chart List Tool
  • Name: analytics-chart-list
  • Description: Retrieves data analytics chart's metadata list.
  • Parameters:
  • pageNumber: Page number (default: 1) (optional)
  • pageSize: Number of items per page (default: 100) (optional)
  • searchKeyword: Search keyword (optional) (optional)
  • chartType: Chart types that Hackle provides: FUNNEL, DATA_INSIGHT, RETENTION, and USER_PATH. (optional)
Analytics Chart Detail Tool
  • Name: analytics-chart-detail
  • Description: Retrieves data analytics chart's detail. You can visualize the chart using this tool's result.
  • Parameters:
  • chartId: Analytics chart's id. It can be found in the response of Data Report Detail Tool or Analytics Chart List Tool.
  • chartType: Analytics chart's type(FUNNEL, DATA_INSIGHT, RETENTION, USER_PATH). It can be found in the response of Data Report Detail Tool or Analytics Chart List Tool.
Remote Config List Tool
  • Name: remote-config-list
  • Description: Retrieves remote config list.
  • Parameters:
  • pageNumber: Page number (default: 1)
  • pageSize: Number of items per page (default: 100)
  • searchKeyword: Search keyword (optional)
  • status: Status of remote config: ACTIVE, ARCHIVED (default: 'ACTIVE')
Remote Config Detail Tool
  • Name: remote-config-detail
  • Description: Retrieves remote config's detail.
  • Parameters:
  • remoteConfigId: Remote config's id. You can get this information by using Remote Config List Tool.
Remote Config Creation Tool
  • Name: remote-config-create
  • Description: Creates an empty remote config. It is recommended to update an existing RC first if there is an associated RC with the one you want to create since the total number of RC is limited.
  • Parameters:
  • body: Request body.
  • key: Remote config's name.
  • description: Remote config's description.
  • dataType: Type of remote config's value: STRING, JSON, NUMBER, BOOLEAN.
  • userIdentifierCriteria: User identifier criteria for targeting. You can use criteria provided by Hackle($deviceId, $userId) or your own criteria created at Hackle dashboard website. (default: '$deviceId')
Remote Config Content Update Tool
  • Name: remote-config-update
  • Description: Updates remote config's content.
  • Parameters:
  • remoteConfigId: Remote config's id.
  • body: Request body.
  • dataType: Type of remote config's value: STRING, JSON, NUMBER, BOOLEAN. The request will not be accepted if dataType and remote config values does not match.
  • remoteConfigDefaultValue: Default value of remote config. This value's type should match with dataType field.
  • conditionalValues: Array of conditional remote config's value with user group targeting.
  • ruleName: Name of targeting condition rule.
  • remoteConfigValue: Remote config's value. This value's type should match with dataType field.
  • target
  • conditions: Targeting rules. Users who The user he satisfies all conditions in this array will see this rule's remote config value.
  • key
  • type: Condition's type: HACKLE_PROPERTY, USER_PROPERTY, AB_TEST, FEATURE_FLAG, COHORT, SEGMENT.
  • name: Property's name if type is HACKLE_PROPERTY or USER_PROPERTY. Experiment key if type is AB_TEST. Feature flag key if type is FEATURE_FLAG. You can put any non-empty string if type is COHORT or SEGMENT.
  • match
  • operator: Operators that will be used to match key and values of the condition.
  • valueType: Type of targeting condition's value: NUMBER, STRING, BOOLEAN, VERSION.
  • values: Values of targeting condition's key. Followings are some special cases: The values will be treated as names if you are using SEGMENT. Only strings 'A' and 'B' are allowed if type is AB_TEST. Only boolean values are accepted if type is FEATURE_FLAG. You should put cohort's id if type is COHORT.
Remote Config User Identifier Criteria Update Tool
  • Name: remote-config-update-user-identifier-criteria
  • Description: Updates remote config's user identifier criteria. The change will be applied to both production and development environment.
  • Parameters:
  • remoteConfigId: Remote config's id.
  • body: Request body.
  • userIdentifierCriteria: User identifier criteria for targeting. You can use criteria provided by Hackle($deviceId, $userId) or your own criteria created at Hackle dashboard website. (default: '$deviceId')
Remote Config Description Update Tool
  • Name: remote-config-update-description
  • Description: Updates remote config's description. The change will be applied to both production and development environment.
  • Parameters:
  • remoteConfigId: Remote config's id.
  • body: Request body.
  • description: Remote config's description.

Installation

Add this entry to your claude_desktop_config.json:

  • On Mac: ~/Library/Application Support/Claude/claude_desktop_config.json
  • On Windows: %APPDATA%\Claude\claude_desktop_config.json
  • On Linux: ~/.config/Claude/claude_desktop_config.json
{

"mcpServers": { "hackle-mcp": { "command": "npx", "args": ["-y", "@hackle-io/hackle-mcp@latest"], "env": { "API_KEY": "YOUR_API_KEY" } } } }

Restart Claude if running

Getting Your API Key

To use the Hackle MCP Server, you will need an API key. To obtain your API key:

  1. Contact the Hackle team directly through Hackle Slack Community
  2. Request an API key for MCP Server access
  3. The Hackle team will provide you with a unique API key

Important: Never share your API key or commit it to public repositories. Treat your API key as a sensitive credential.

License

MIT