REA
Reverse engineer anything from your terminal or agent with one CLI and MCP server.
Runs on your computer
JW3 MCP Server
What it does
JW3.ai remote MCP server for market reads and confirm-gated trading execution.
- Connects Runs in the cloud
- Account or key Sign in to the service when you connect (OAuth)
- Category Developer tools
Install
Pick the AI app you use, then copy the settings.
Passed 4/5 checks · What you ask goes through the maker’s server (nzhbfeahymmyqerzjgbt.supabase.co) · ✓ Commands checked Nov 13, 2026
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
Open Claude’s Connectors page
CustomizeConnectors
Click “Add” → “Custom” → “Web” and fill in these 2 fields
Copy each value into the field with the same name in Claude, then click Continue
Name · NameJW3 MCP ServerRemote MCP server URL · Addresshttps://nzhbfeahymmyqerzjgbt.supabase.co/functions/v1/mcp-serverClick Continue past the sign-in settings Claude detected · under Authentication choose what the maker says (Sign in now, Sign in when needed or No sign in), then click Add
Turn it on in a chat
+ConnectorsJW3 MCP Server
Try it
Use JW3 MCP Server and tell me what you can do for me, then show me one thing✓ If Claude says it is using JW3 MCP Server or shows a JW3 MCP Server 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, depending on your plan
Full MCP: ChatGPT Business, Enterprise or Edu on the web · Pro: connects with read/fetch permissions, so tools that change data may not work · Plus: not confirmed in OpenAI’s docs; if you see an add-custom-MCP option on the Plugins page you can try these steps · web only
Open ChatGPT’s add-MCP page on the web
Plugins+Add custom MCP server
Fill in the name and address
Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin
Name · NameJW3 MCP ServerConnection · Addresshttps://nzhbfeahymmyqerzjgbt.supabase.co/functions/v1/mcp-serverPick JW3 MCP Server in a chat
Start a new chat and pick JW3 MCP Server from your plugins before typing
Try it
Use JW3 MCP Server and tell me what you can do for me, then show me one thing✓ If ChatGPT says it is using JW3 MCP Server or shows a JW3 MCP Server 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
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Paste this command and press Enter
claude mcp add --transport http --scope user jw3-cli https://nzhbfeahymmyqerzjgbt.supabase.co/functions/v1/mcp-serverType /mcp in Claude Code
You should see JW3 MCP Server listed as connected
Try it
Use JW3 MCP Server and tell me what you can do for me, then show me one thing✓ If Claude Code says it is using JW3 MCP Server or shows a JW3 MCP Server 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
Open the AI chat in Cursor in Agent mode
Try it
Use JW3 MCP Server and tell me what you can do for me, then show me one thing✓ If Cursor says it is using JW3 MCP Server or shows a JW3 MCP Server 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
Open the AI chat in VS Code in Agent mode
Try it
Use JW3 MCP Server and tell me what you can do for me, then show me one thing✓ If VS Code says it is using JW3 MCP Server or shows a JW3 MCP Server 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
Address
https://nzhbfeahymmyqerzjgbt.supabase.co/functions/v1/mcp-serverJSON settings are under “For developers” below
For developers: Terminal commands and JSON settings
Over the web
Claude Code
claude mcp add --transport http --scope user jw3-cli https://nzhbfeahymmyqerzjgbt.supabase.co/functions/v1/mcp-serverCursor (~/.cursor/mcp.json)
{
"mcpServers": {
"jw3-cli": {
"url": "https://nzhbfeahymmyqerzjgbt.supabase.co/functions/v1/mcp-server"
}
}
}VS Code (mcp.json)
{
"servers": {
"jw3-cli": {
"type": "http",
"url": "https://nzhbfeahymmyqerzjgbt.supabase.co/functions/v1/mcp-server"
}
}
}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
- 0.1.1
- Categoryi
- Developer tools
- Published to registryi
- Nov 9, 2026
- Code last changedi
- Nov 11, 2026
- Maker
- agnostic4321-ops
- Website
- www.jw3.ai
- 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
ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast
Related guides
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 13, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account agnostic4321-ops, which owns the repo
- ✓ Pass
Still maintained
Code last changed 2 days ago
- ✕ Fail
Has a licence
No licence file found in the repo
- ✓ Pass
Endpoint responds
Responded in 1009 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
Discussion
Ask, share a tip or report that it does not work. Sorted by what people marked helpful.
No posts yet. Be the first to ask or share.
Posts here are written by users, not the PopNx team.
User reviews
No reviews yet
Compared with others in Developer toolsi
- More stars than 0% of the other 5843 servers in this category
- Published to the registry more recently than 88% of the other 5843 servers in this category
- Basic checks equal to or better than 51% of the other 5843 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 JW3 MCP Server safe?
It passed 4 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?
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 2 days ago, and the latest version (0.1.1) reached the registry 4 days 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 on the web (full MCP on Business and above; Pro read-only).
Others in the same category
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
Serena MCP: the IDE for your agent
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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.
JW3 MCP + CLI
Listed in the official MCP Registry as io.github.agnostic4321-ops/jw3-mcp-cli (remote, Streamable HTTP). Discovery (initialize, tools/list) is open; every tool call needs OAuth sign-in or a scoped PAT.
Standalone harness repo: the MCP tool server (Supabase edge functions) and the jw3 command-line thin wrapper over its JSON-RPC surface.
Split out of jw3_ai (2026-10-26) to keep app and harness lifecycles separate. The deployed function URLs are unchanged — same Supabase project, same slugs.
Layout
cli/—@jw3/cli(jw3/jw3dbins). Pure HTTP client of the mcp-server surface; no app imports.cd cli && npm run build(typecheck + emit) /cd cli && npm test(build + node --test).edge-functions/— Supabase edge functions, deployed to the same project:mcp-server(gateway JWT off — harness PATs are the gate)mcp-auth,mcp-token,mcp-oauth(token issuance / OAuth)
Deploying functions
# Syncs edge-functions/{_shared,agent-chat} from the ../jw3_ai checkout(override with JW3_AI_DIR), runs deno check, then stages the standard
supabase/functions layout in a temp dir and deploys.
scripts/sync-edge-shared.sh --deploy mcp-server
Direct supabase functions deploy from this root does NOT work: sources live under edge-functions/ (not supabase/functions/), and the ../_shared + ../agent-chat imports only resolve after the sync step above (previously a throwaway-symlink step — now this committed script; the copies are gitignored, never committed). Sync-only (no deploy): run the script with no args.
supabase/config.toml pins the gateway flags (verify_jwt = false where the harness PAT — not a JWT — is the credential).
Parity contract
jw3_ai/src/test/read-tool-parity.test.ts reads this repo at the sibling path ../jw3-mcp-cli/edge-functions/mcp-server/* when present and skips otherwise. Keep read_live_datum kinds and shared readers (fetchOnchainSnapshot, executeScreenerRead, no inline buildOnchainAggregate) in sync with jw3_ai's agent-chat/read-tools.ts — the test enforces it locally.