Gexno Web3

Name: Gexno Web3
Author: JanzenChen

by JanzenChenversion 0.1.3i★ 0iRuns in the cloud

Registry nameio.github.JanzenChen/gexno-web3

How to install

What it does

Free Ethereum wallet profile & NFT metadata MCP tools (no signup).

Connects Runs in the cloud
Account or key No key needed
Category Crypto & blockchain

Install

Pick the AI app you use, then copy the settings.

Passed 5/5 checks · What you ask goes through the maker’s server (api.gexno.com) · ✓ Commands checked Nov 13, 2026

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

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
Done
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 · NameGexno Web3
Remote MCP server URL · Addresshttps://api.gexno.com/mcp
Click 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
Done
Turn it on in a chat
+ConnectorsGexno Web3
Done
Try it
Use Gexno Web3 and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Gexno Web3 or shows a Gexno Web3 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
Done
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 · NameGexno Web3
Connection · Addresshttps://api.gexno.com/mcp
Done
Pick Gexno Web3 in a chat
Start a new chat and pick Gexno Web3 from your plugins before typing
Done
Try it
Use Gexno Web3 and tell me what you can do for me, then show me one thing
✓ If ChatGPT says it is using Gexno Web3 or shows a Gexno Web3 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
Done

Paste this command and press Enter

claude mcp add --transport http --scope user gexno-web3 https://api.gexno.com/mcp

Done

Type /mcp in Claude Code
You should see Gexno Web3 listed as connected
Done
Try it
Use Gexno Web3 and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using Gexno Web3 or shows a Gexno Web3 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

Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use Gexno Web3 and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Gexno Web3 or shows a Gexno Web3 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

Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use Gexno Web3 and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Gexno Web3 or shows a Gexno Web3 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.

See every app that uses MCP →

Address for apps that connect over the web

Addresshttps://api.gexno.com/mcp

JSON settings are under “For developers” below

Stuck? Ask people who use Gexno Web3💬 Discussion →

For developers: Terminal commands and JSON settings

Over the web

Claude Code

claude mcp add --transport http --scope user gexno-web3 https://api.gexno.com/mcp

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "gexno-web3": {
      "url": "https://api.gexno.com/mcp"
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "gexno-web3": {
      "type": "http",
      "url": "https://api.gexno.com/mcp"
    }
  }
}

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub stars i: 0
Downloads per weeki: Not on npm/PyPI
Licence i: MIT
Connection: Runs in the cloud
Transport: streamable-http
Latest versioni: 0.1.3
Categoryi: Crypto & blockchain
Published to registryi: Oct 27, 2026
Code last changedi: Oct 27, 2026
Maker: JanzenChen
Repo: JanzenChen/gexno-web3
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

Claude ChatGPT Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Open WebUI Raycast

All apps, with pros and cons →

What it can do

Tool names and descriptions exactly as the server reported them on Nov 12, 2026. The maker wrote them, not us; we show them as plain text.

lookup_wallet
Look up an Ethereum wallet: ETH balance, contract flag, outbound tx count, and simple risk heuristics (ok / new_wallet / contract / eip7702). EIP-7702 delegated EOAs report risk=eip7702. Read-only; not an AML score.
lookup_nft
Resolve NFT metadata for a contract + tokenId: name, description, image HTTP URL, IPFS gateway link, and raw metadata JSON. Supports ERC-721 and ERC-1155. Read-only.

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 15, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account JanzenChen, which owns the repo
✓ Pass
Still maintained
Code last changed 19 days ago
✓ Pass
Has a licence
Uses MIT
✓ Pass
Endpoint responds
Responded in 608 ms (HTTP 200)
– Not applicable
Sign-in with OAuth
No sign-in needed
✓ Pass
No hidden instructions in tool descriptions
Read 2 tool descriptions and found no hidden instructions to the AI

What we check → · JSON

Makers: ask for a re-check or report wrong info

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 Crypto & blockchaini

More stars than 0% of the other 1708 servers in this category
Published to the registry more recently than 73% of the other 1708 servers in this category
Basic checks equal to or better than 100% of the other 1708 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 Gexno Web3 safe?

It passed 5 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 19 days ago, and the latest version (0.1.3) reached the registry 19 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).

What can I use instead?

In the same category: DexSQL, PayRam, DexPaprika, Alchemy MCP Server, X402 List MCP

Similar alternatives

Same category, other makers, commands already checked. Official ones first, then by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

DexSQL

SQL for Android APK and DEX files: classes, methods, strings, references and smali.

by LSPosedGrowing★ 310Updated 28 days ago

Runs on your computer✓ lsposed.org

Install

PayRam

Install, configure, operate and integrate self-hosted PayRam crypto payment gateways.

by PayRamGrowing★ 158Updated 39 days ago

Runs in the cloud✓ service owner · payram.com

How to connect

DexPaprika

DEX and on-chain data: liquidity pools, token prices, swaps, and trading volume.

by coinpaprikaGrowing★ 120Updated 2 days ago

Runs in the cloud✓ service owner · dexpaprika.com

How to connect

Alchemy MCP Server

Blockchain data across 100+ chains: token prices, NFTs, transfers, simulation, traces, Solana DAS

by alchemyplatformGrowing★ 88Updated 4 days ago

Runs in the cloud✓ service owner · alchemy.com

How to connect

X402 List MCP

Find and vet x402 payment APIs before your agent pays one: uptime, price, on-chain volume.

by mcccsmEarly↓ 80/wk★ 18Updated 36 days ago

Computer or cloud✓ service owner · x402-list.com

Install

DexSQL — Installs on your computer · No key needed
PayRam — Runs in the cloud, nothing to install · No key needed
DexPaprika — Runs in the cloud, nothing to install · No key needed
Alchemy MCP Server — Runs in the cloud, nothing to install · No key needed
X402 List MCP — Cloud or install on your computer · No key needed

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.

Gexno Web3 MCP

Free, no-signup on-chain lookups for AI agents. Two read-only tools: wallet profile and NFT metadata.

Remote: https://api.gexno.com/mcp — Streamable HTTP, nothing to install
npm: npx @gexno/web3-mcp — same tools over stdio
Registry name: io.github.JanzenChen/gexno-web3

No API key, no signup, no wallet connection. Reads only.

Tool	What it returns
`lookup_wallet`	ETH balance, contract flag, outbound tx count, simple risk heuristics (`ok` / `new_wallet` / `contract` / `eip7702`)
`lookup_nft`	NFT metadata for contract + tokenId: name, description, image HTTP URL, IPFS gateway link, raw JSON (ERC-721 `tokenURI` and ERC-1155 `uri`)

Backed by the Gexno Web3 Agent API: https://api.gexno.com/api/web3

Use it (remote, nothing to install)

"mcpServers": { "gexno-web3": { "url": "https://api.gexno.com/mcp" } } }

Works with Claude Desktop, Cursor, and any MCP client that supports remote servers.

Discovery documents:

server card — https://api.gexno.com/.well-known/mcp/server-card.json
AI catalog — https://api.gexno.com/.well-known/ai-catalog.json
OpenAPI — https://api.gexno.com/api/web3/openapi.json

Use it (npm, stdio)

npx -y @gexno/web3-mcp

Client config:

"mcpServers": { "gexno-web3": { "command": "npx", "args": ["-y", "@gexno/web3-mcp"] } } }

Requires Node.js >= 20. The stdio process calls the same public HTTP API.

Environment variables

Variable	Default	Purpose
`GEXNO_API_BASE`	`https://api.gexno.com`	API root, useful for self-hosted instances
`GEXNO_TIMEOUT_MS`	`35000`	Per-request timeout; NFT + IPFS resolution can be slow
`GEXNO_INTERNAL_TOKEN`	—	Only for self-hosted Gexno APIs that require it. Never commit a value.

Programmatic use

import { TOOLS, createApiGet, runTool } from '@gexno/web3-mcp'

const apiGet = createApiGet({ apiBase: 'https://api.gexno.com' }) const wallet = await runTool('lookup_wallet', { address: '0xd8dA...6045' }, apiGet)

Use it (local bundle, MCPB)

Download gexno-web3.mcpb from Releases and open it in Claude Desktop (drag onto the app, or Settings → Extensions).

What the output looks like

"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045", "balanceEth": "5.7736", "isContract": false, "txCount": 5969, "risk": "eip7702", "eip7702": true, "delegation": { "address": "0xd1ea…", "verified": true } }

EIP-7702 delegated EOAs are reported as risk: "eip7702" with isContract: false — they are still EOAs, they just carry a delegation designator. We parse the 0xef0100 prefix and checksum the delegate address, so a delegated wallet is not misreported as a smart contract.

Limits & behaviour

Free tier: short-burst rate limit plus a daily cap per IP; no key required.
Cached reads: wallet ~60s, NFT metadata ~5min. Repeat lookups are millisecond-scale.
No signup, no tracking, no wallet connection. Reads only.
Not an AML/risk score. Heuristics are intentionally simple.
Errors surface as normal MCP tool errors; the process does not crash.

Development

npm install

npm run smoke # live wallet lookup against the API npm start # run the stdio server directly

Test against a local API instead of production with GEXNO_API_BASE=http://127.0.0.1:3000.

Security posture and residual risks: HARDENING.md

Gexno Web3

What it does

Install

Open Claude’s Connectors page

Click “Add” → “Custom” → “Web” and fill in these 2 fields

Turn it on in a chat

Try it

Open ChatGPT’s add-MCP page on the web

Fill in the name and address

Pick Gexno Web3 in a chat

Try it

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Click this button to open Cursor

Open the AI chat in Cursor in Agent mode

Try it

Click this button to open VS Code

Open the AI chat in VS Code in Agent mode

Try it

Over the web

At a glance

Which apps can use it

Related guides

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

Discussion

User reviews

Compared with others in Crypto & blockchaini

Common questions

Similar alternatives

DexSQL

PayRam

DexPaprika

Alchemy MCP Server

X402 List MCP

README from the maker

Gexno Web3 MCP

Use it (remote, nothing to install)

Use it (npm, stdio)

Environment variables

Programmatic use

Use it (local bundle, MCPB)

What the output looks like

Limits & behaviour

Development

Links