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Edgehound
Overview
Description from the maker (original English)
Writes adversarial test suites for AI-built code. Your agent's test engineer.
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
- UsageiVery new★ –
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: Developer tools
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?
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://gauntlet.mcpize.run/mcpRun this in your terminal
claude mcp add --transport http edgehound https://gauntlet.mcpize.run/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"edgehound": {
"url": "https://gauntlet.mcpize.run/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.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"edgehound": {
"type": "http",
"url": "https://gauntlet.mcpize.run/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://gauntlet.mcpize.run/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.
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 9, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account Energixe, 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 Developer toolsi
- More stars than 0% of the other 5558 servers in this category
- Published to the registry more recently than 41% of the other 5558 servers in this category
- Basic checks equal to or better than 100% of the other 5558 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 Edgehound 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 (1.1.0) 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: GitHub, Desktop Commander, Cloudflare MCP
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
Desktop Commander
MCP server for terminal commands, file operations, and process management
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.
Edgehound
An MCP server that writes test suites designed to break your code.
This repo is the public front door — install guide, examples, and issue tracking. The generation engine runs as a hosted service, so there is nothing here to build or self-host.
What it does
Point your AI agent at a file, and Edgehound writes a complete, runnable test suite that attacks it: boundary values, unicode and emoji, timezone and month-end math, float money rounding, double submits, injection strings, pagination edges. It also predicts — before you run anything — which bugs the suite will expose, with the exact code evidence for each.
Works with Claude Code, Cursor, opencode, VS Code, and any MCP client.
Install
Add the server to your MCP config:
{"mcpServers": { "faultline": { "url": "https://gauntlet.mcpize.run/mcp" } } }
On first use your client will ask you to sign in to MCPize. After that:
"write tests for src/pricing.ts"
and your agent does the rest.
Make it automatic
Paste this into your project's rules file (CLAUDE.md, AGENTS.md, or .cursor/rules), and your agent will reach for Edgehound every time it writes or changes input-handling code — no prompting needed:
Whenever you create or modify code that accepts input, touches money, handlesdates, or manages state — call the Edgehound tool (generate_test_suite) before marking the task complete. Save the returned suite next to the file, run it, and fix any failing test by fixing the code, not by weakening the test. Skip only for pure UI markup, copy changes, and configuration.
What a run looks like
examples/user-utils.js has four innocent-looking helpers. A real generation produced 60 tests — 55 passed, 5 failed. Every failure was a real bug in the sample:
parseDuration('1h30m')returns 3600 — it silently drops the minutesmonthlyPriceleaks float drift on non-divisible cents- half-value money rounding is unhandled
- negative input produces a negative price
truncateblows up when handed a number instead of a string
Try it:
node --test examples/user-utils.test.jsLanguages today: JavaScript/TypeScript (Jest, Vitest, node:test), Python (pytest), Go, PHP (PHPUnit), Ruby (RSpec), Rust (cargo test).
Issues
Bugs, weird output, missing languages — open an issue here. We read everything and ship fixes fast. Want Go/Rust/PHP improvements or a language we don't cover yet (Java, C#, Swift)? Say so in an issue; demand decides what gets added next.
Status
v1.1 — predicted-bug reports, syntax-validated output with auto-repair, multi-file context, 8 test frameworks.