REA
Reverse engineer anything from your terminal or agent with one CLI and MCP server.
Order human-run real-device app tests from your coding agent; verified bugs return as fix prompts.
Pick the AI app you use, then copy the settings.
Passed 2/3 checks · What you ask goes through the maker’s server (99tests.com)
First: which AI do you use?
Pick your app and the steps appear below.
Works with Claude · about 2 min
No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it
CustomizeConnectors
Copy each value into the field with the same name in Claude, then click Continue
99testshttps://99tests.com/api/mcpLeave Authentication as Claude detected it, then click Add
+Connectors99tests
Use 99tests and tell me what you can do for me, then show me one thing✓ If Claude says it is using 99tests or shows a 99tests 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 ChatGPT on business plans only
ChatGPT Business, Enterprise or Edu on the web, added by a workspace admin or owner · On Free, Plus or Pro: your ChatGPT plan cannot connect MCP yet
Plugins+Add custom MCP server
Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin
99testshttps://99tests.com/api/mcpStart a new chat and pick 99tests from your plugins before typing
Use 99tests and tell me what you can do for me, then show me one thing✓ If ChatGPT says it is using 99tests or shows a 99tests tool in the answer, you are connected
Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with Claude Code · about 2 min
No key, nothing to install
Mac: press Command+Space and type Terminal · Windows: open PowerShell
claude mcp add --transport http --scope user 99tests https://99tests.com/api/mcpYou should see 99tests listed as connected
Use 99tests and tell me what you can do for me, then show me one thing✓ If Claude Code says it is using 99tests or shows a 99tests 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 2 min
No key, nothing to install
Use 99tests and tell me what you can do for me, then show me one thing✓ If Cursor says it is using 99tests or shows a 99tests 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 2 min
No key, nothing to install
Use 99tests and tell me what you can do for me, then show me one thing✓ If VS Code says it is using 99tests or shows a 99tests 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.
Address for apps that connect over the web
https://99tests.com/api/mcpJSON settings are under “For developers” below
Claude Code
claude mcp add --transport http --scope user 99tests https://99tests.com/api/mcpCursor (~/.cursor/mcp.json)
{
"mcpServers": {
"99tests": {
"url": "https://99tests.com/api/mcp"
}
}
}VS Code (mcp.json)
{
"servers": {
"99tests": {
"type": "http",
"url": "https://99tests.com/api/mcp"
}
}
}These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
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
Tool names and descriptions exactly as the server reported them on Nov 11, 2026. The maker wrote them, not us; we show them as plain text.
list_packagesList 99tests packages, prices (INR + GST and USD), session counts, devices and turnaround.
create_test_jobCreate a 99tests test job and return a hosted checkout link to pay in a browser. Never charges a card directly.
get_job_statusCheck a job's stage and progress using the customer's own status link or token. Poll at most every 10 minutes.
get_reportGet the verified findings for a delivered job as ready-to-paste fix prompts, using the customer's own status link or token.
get_sample_reportGet a description and link to an example 99tests report, so you can see the format before paying.
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 13, 2026
The registry lists no source repo, so we cannot match the publisher (99tests.com) to the code
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
No sign-in needed
Read 5 tool descriptions and found no hidden instructions to the AI
Ask, share a tip or report that it does not work. Sorted by what people marked helpful.
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Posts here are written by users, not the PopNx team.
No reviews yet
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 2 of 3 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 (1.0.0) reached the registry 9 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 Business and above.
In the same category: REA, GitHub, Serena MCP: the IDE for your agent
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
Reverse engineer anything from your terminal or agent with one CLI and MCP server.
A powerful toolkit for coding, providing semantic retrieval and editing capabilities.
No README found in the repo