Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Evidence-backed DeFi yield data for ~17,000 pools: rates, yield sources, 90-day history. Read-only.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
WEB3JUICE_API_KEY, AuthorizationValues marked secret are keys to your account. Never share them or paste them into a chat.
You need
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Pick your app above. We remember it, so next time the button says “Install in …”.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"web3juice": {
"command": "npx",
"args": [
"-y",
"web3juice-mcp"
],
"env": {
"WEB3JUICE_API_KEY": "your-value"
}
}
}
}Run this in your terminal
claude mcp add --transport http web3juice https://web3juice.com/api/mcp --header 'Authorization: your-value'claude mcp add web3juice --env WEB3JUICE_API_KEY=your-value -- npx -y web3juice-mcpFill in the empty values before running it.
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"web3juice": {
"url": "https://web3juice.com/api/mcp",
"headers": {
"Authorization": "your-value"
}
}
}
}Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"web3juice": {
"command": "npx",
"args": [
"-y",
"web3juice-mcp"
],
"env": {
"WEB3JUICE_API_KEY": "your-value"
}
}
}
}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.
Paste into .vscode/mcp.json in your project
{
"servers": {
"web3juice": {
"type": "http",
"url": "https://web3juice.com/api/mcp",
"headers": {
"Authorization": "your-value"
}
}
}
}Paste into .vscode/mcp.json in your project
{
"servers": {
"web3juice": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"web3juice-mcp"
],
"env": {
"WEB3JUICE_API_KEY": "your-value"
}
}
}
}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.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Your choice stays on this device in a cookie; no account needed.
Authorization secret HTTP headerThese settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
We have not read this server’s tool list yet; we check endpoints in rotation.
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 7, 2026
The registry name was verified against the domain web3juice.com (the registry checks domain ownership)
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Not checked yet; we check endpoints in rotation
Not checked yet; we check endpoints in rotation
Not checked yet; we read the tool list when we check the endpoint
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
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.
You need to fill in: WEB3JUICE_API_KEY, Authorization
Either way works: install it on your computer or connect to the cloud version.
The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 22 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 in developer mode.
In the same category: Spec Driven Development, Remote Desktop Commander, sync. labs
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Lipsync videos, dub them into other languages, make talking videos and open sync. Studio.
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.
Evidence-backed DeFi yield data for your AI assistant. Ask Claude, Cursor or any MCP client what ~17,000 DeFi pools pay, where the yield comes from (base vs reward tokens), how it has moved over 90 days and how pools compare — with every number dated and linked to its source.
This package is a tiny, dependency-free bridge from a local stdio MCP client to the hosted Web3Juice MCP server at https://web3juice.com/api/mcp. Clients that support remote servers can connect to that URL directly; see web3juice.com/mcp.
Read-only: it never sees a wallet's keys, signs a transaction or moves funds. Not financial advice.
Claude Desktop → Settings → Developer → Edit Config, then add:
{
"mcpServers": { "web3juice": { "command": "npx", "args": ["-y", "web3juice-mcp"] } } }
Restart Claude Desktop and ask: *"What does USDC lending pay on each chain right now?"*
Requires Node.js 18.17 or newer.
Create a key on your Web3Juice account page and add it as an environment variable:
{
"mcpServers": { "web3juice": { "command": "npx", "args": ["-y", "web3juice-mcp"], "env": {"WEB3JUICE_API_KEY": "w3j_your_key_here"} } } }
Claude Code (remote, no install):
claude mcp add --transport http web3juice https://web3juice.com/api/mcp
Claude Code plugin (this repository is also a plugin marketplace):
claude plugin marketplace add jimbob1414/web3juice-mcp
claude plugin install web3juice@web3juice
Set WEB3JUICE_API_KEY in your environment to use your own limits.
Cursor, VS Code, ChatGPT, Claude.ai and others: see web3juice.com/mcp.
Claude Desktop extension: download web3juice.mcpb from the latest release and open it.
| Tool | What it does |
|---|---|
summarize_yields | Market overview for any filter: median and TVL-weighted APY by chain, protocol or strategy. |
search_pools | Find and rank pools by token, chain, protocol, APY and TVL. |
get_pool | One pool: APY split, TVL, data age, contract and token addresses, deposit and source links, assessment. |
get_pool_history | 7/30/90-day APY trend with dated samples. |
compare_pools | 2–5 pools side by side with 30-day ranges. |
get_data_sources | Feed health and last update. |
get_methodology | How the experimental evidence assessment works. |
With a Pro, Power or Team key, read-only workspace tools are added: list_alerts, get_alert, list_notebook_entries, get_notebook_entry, list_investments, list_wallets, get_wallet_positions.
Prompts: find_stablecoin_yields, analyse_pool, compare_yields, yield_market_snapshot. Resources: web3juice://guide, web3juice://methodology, web3juice://data-sources, web3juice://pool/{poolId}.
| No key | Free account key | Pro (£10/month) | Power (£39/month) | |
|---|---|---|---|---|
| Calls per day | 500 per address | 500 | 10,000 | 50,000 |
| Calls per minute | 30 | 30 | 120 | 300 |
| Your alerts, notebook, investments, wallets | — | — | yes | yes |
Current prices: web3juice.com/pricing.
| Variable | Default | Purpose |
|---|---|---|
WEB3JUICE_API_KEY | none | Optional key (w3j_…). Without it you get the free limits. |
WEB3JUICE_MCP_URL | https://web3juice.com/api/mcp | Server URL. Must be https:// (plain http only for localhost). |
WEB3JUICE_MCP_DEBUG | off | Set to 1 to log to stderr. |
Authorization header. It is never logged.| Problem | Fix |
|---|---|
npx not found / server fails to start | Install Node.js 18.17+ from nodejs.org, then restart your client. |
| "API key is not valid or has been revoked" | Create a new key on your account page and update WEB3JUICE_API_KEY. |
| "Daily MCP limit reached" | Wait until 00:00 UTC, add a key, or upgrade at web3juice.com/pricing. |
| Search returns nothing | Results default to pools with at least $100K TVL and data under 60 minutes old; ask for smaller pools or older data. |
| Rates look 100× too big | Filters use fractions: 0.05 means 5%. |
MIT for this bridge. The data and service at web3juice.com are not covered by this licence.