GoldBean MCP Server

xyz.goldbean-apiPublished by goldbean-api.xyzv0.3.3Updated Oct 24, 2026

49 pay-per-use APIs for AI agents via x402. AI, crypto, DeFi, blockchain, weather, search, security.

VerifiedSTDIODesktop onlyFinanceData & AnalyticsAI & ML

Overview

AI-generated overview

GoldBean exposes 49 pay-per-use HTTP APIs for AI agents, covering crypto prices, DeFi, blockchain, weather, search and security data.

What you can do
GoldBean is an x402 micropaid API marketplace reachable over HTTP. Free endpoints include service info, health check, ETH price, gas estimate and the MCP manifest; paid endpoints at $0.02 USDC per call cover BTC price, gas forecast, market sentiment, DeFi TVL, network health, MEV tracker reports and Solana token risk. The MCP integration is added as a remote URL in an mcpServers config, so the assistant can call these endpoints as tools.
When to use it
Use it when an assistant needs on-demand crypto, DeFi or blockchain data and you are willing to pay per request in USDC instead of signing up for API keys or subscriptions. It suits occasional lookups rather than high-volume or latency-critical workloads.
Requirements
A local MCP client that supports remote HTTP servers (Claude Desktop, Cursor, Cline), network access to the provider's host, USDC on Base (testnet eip155:84532 or mainnet eip155:8453) and an x402-capable wallet or client that can sign payment challenges. No signup or API key is declared.
Before you install
Paid calls cost $0.02 USDC each and require signing x402 payment challenges with a wallet, so a funded wallet is exposed to the service; the README states the wallet sends USDC only when a challenge is accepted and there are no recurring charges. Settlement is handled by a third-party facilitator, and data is sourced from CoinGecko, Etherscan and Alternative.me. The README lists a seller wallet address and a testnet-to-mainnet migration.

Installation

In SourceWeft

  1. Open GoldBean MCP Server in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

🫘 GoldBean - x402 Micropaid API Marketplace

[Official MCP Registry] [npm]

Pay per request with USDC on Base. No signup, no API key, no monthly subscription. Every call costs $0.02 USDC via the x402 protocol.

GoldBean is live: http://104.225.233.23:9879

Quick Start

1. Prerequisites

  • USDC on Base (eip155:84532 testnet or eip155:8453 mainnet)
  • A wallet that can sign x402 payments (AgentCash, CDP Wallet, or any EVM wallet)

2. Try a Free Endpoint

bash
curl http://104.225.233.23:9879/health# {"status":"ok","service":"GoldBean","timestamp":"2026-05-15T12:00:00.000Z"}
curl http://104.225.233.23:9879/eth-price# {"usd":"2255.93","change24h":"+0.31%","timestamp":"2026-05-15T12:00:00.000Z"}

3. Call a Paid Endpoint

bash
curl http://104.225.233.23:9879/paid/btc-price# HTTP 402 Payment Required# x402-challenge: {...}

To pay the 402 and get data, you need an x402-capable client:

Using AgentCash:

bash
npx agentcash@latest fetch http://104.225.233.23:9879/paid/btc-price

Using x402-proxy (CLI tool):

bash
npx x402-proxy http://104.225.233.23:9879/paid/btc-price

Using curl with manual payment (advanced):

bash
# Step 1: Request triggers 402curl -s -D - http://104.225.233.23:9879/paid/btc-price
# Step 2: Parse x402-challenge header, sign with your wallet# Step 3: Retry with x402-payment headercurl -H "x402-payment: <signed-payment>" http://104.225.233.23:9879/paid/btc-price

4. MCP Integration

Add to Claude Desktop / Cursor / Cline mcpServers config:

json
{  "mcpServers": {    "goldbean": {      "url": "http://104.225.233.23:9879/mcp"    }  }}

Available Endpoints

Free (no payment needed)

EndpointDescription
GET /Service info & endpoint list
GET /healthHealth check
GET /eth-priceReal-time ETH price (via CoinGecko)
GET /gasETH gas price estimate
GET /cardService card / metadata
GET /mcpMCP protocol manifest

Paid ($0.02 USDC per call)

EndpointDescription
GET /paid/btc-priceReal-time BTC price (via CoinGecko)
GET /paid/gas-forecastGas price forecast
GET /paid/market-intelMarket sentiment & Fear & Greed Index
GET /paid/defi-insightsDeFi TVL & chain data
GET /paid/network-healthBlockchain network health
GET /paid/tracker-reportMEV & on-chain tracker report
GET /paid/sol-token-riskSolana token risk assessment

How x402 Payment Works

Client                          GoldBean Server  │                                   │  ├─ GET /paid/btc-price ─────────────┤  │◄─ 402 Payment Required ───────────┤  │   x402-challenge: {...}           │  │                                   │  ├─ Sign challenge with wallet ──────┤  │   (off-chain, no gas fee)         │  │                                   │  ├─ GET /paid/btc-price ─────────────┤  │   x402-payment: <signed>          │  │◄─ 200 OK ─────────────────────────┤  │   {"usd":"68000.00",...}          │  │                                   │

The facilitator (x402.org) handles settlement. Your wallet sends USDC only when challenge is accepted. No recurring charges.

Data Sources

  • CoinGecko API — Real-time cryptocurrency prices
  • Etherscan API — Gas price oracle
  • Alternative.me — Fear & Greed Index

Seller Info

  • Seller wallet: 0xB5f5CBe48E0595C044Bc626f278F757463eAc2Ce (Base)
  • Network: eip155:84532 (Base Sepolia testnet) → migrating to eip155:8453 (Base mainnet)
  • Facilitator: https://x402.org/facilitator
  • Price: $0.02 USDC per paid call

Architecture

┌─────────────┐     x402 protocol      ┌──────────────┐│   Client    │ ◄─────────────────────► │   VPS (USCA) ││ (curl/Agent)│     HTTP + 402 flow     │  GoldBean 🫘 │└─────────────┘                         │  :9879       │       │                                └──────┬───────┘       │         ┌──────────────┐              │       └────────►│    Email     │◄─────────────┘                 │  (Gmail)     │  Monitor alerts                 │   Monitor    │                 └──────────────┘

Development

bash
# Servercd /opt/goldbeannpm install express axios @x402/express @x402/core @x402/evmnode server.js
# Monitorpython3 /opt/goldbean/chain_monitor.py

Ecosystem

Built on Bandwagon VPS (USCA-2). Part of the x402 ecosystem.

Source: README.md at commit 7bcbd3e

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v0.3.3LatestSep 16, 2026

Score

50% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts