GoldBean
GoldBean is a pay-per-use AI API gateway (100+ tools, starting at $0.01/call, with a free tier of 50 calls/day) spanning the following domains:
AI & Language Chat with LLMs (GPT-4, Claude, LLaMA), generate text embeddings, summarize documents, translate text, generate code, and analyze sentiment.
Voice & Media Speech-to-text, text-to-speech, AI image generation & analysis, image upscaling (2x/4x), face/gesture detection, short video generation, and video analysis.
Search & Web Web search, page crawling, ArXiv academic search, Wikipedia lookup, GitHub repo/code/issue search, and global or crypto news retrieval.
Crypto, DeFi & Blockchain Real-time and historical crypto prices, BTC/ETH gas fees, stablecoin rates, DEX swap quotes, liquidity pool stats, lending rates, staking APRs, wallet DeFi positions, block/transaction details, address balances, transaction history, nonce queries, ENS/DID resolution, and contract verification.
NFT Floor prices, token metadata, owner lookup, and trade history.
Finance Stock prices, forex rates, commodity prices (gold, oil, etc.), stock index values, and fund NAVs.
Weather Current conditions, 1โ7 day forecasts, and historical weather data.
Security & Verification KYC identity checks, AML screening, blockchain address risk scoring, token/smart contract security audits, phishing URL detection, virus scanning, and CAPTCHA solving.
Social Media Data queries for Twitter/X, Discord, Telegram, Weibo, WeChat, Instagram, TikTok, Lens Protocol, and Farcaster.
Travel & Logistics Flight and hotel search, food delivery options, and package tracking.
Maps & Location Geocoding, reverse geocoding, route planning (drive/transit/walk), and nearby POI search.
E-Commerce Product info, customer reviews, and cross-platform product search.
Office & Documents PDF parsing/merging, Excel and Word processing, OCR, and barcode/QR code recognition.
Utilities Email verification, IP geolocation, WHOIS lookup, URL shortening, QR code generation, and SMS sending.
Market & Network Intelligence Broad market analysis, wallet/contract tracker reports, and blockchain network health checks.
Enables payment processing via Alipay for prepaid credits.
Provides access to Baidu AI APIs including OCR, translation, TTS, ASR, face detection, NLP, image analysis, and more.
Allows querying real-time Bitcoin price and historical price data.
Allows querying Ethereum gas prices, gas fee history, current gas, and blockchain data.
Provides tools for searching GitHub repositories, code, issues, and retrieving repository details.
Enables payment processing via PayPal for prepaid credits.
Allows searching WeChat public account data and related social media content.
๐ซ GoldBean - x402 Micropaid API Marketplace
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 (
eip155:84532testnet oreip155:8453mainnet)A wallet that can sign x402 payments (AgentCash, CDP Wallet, or any EVM wallet)
2. Try a Free Endpoint
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
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:
npx agentcash@latest fetch http://104.225.233.23:9879/paid/btc-priceUsing x402-proxy (CLI tool):
npx x402-proxy http://104.225.233.23:9879/paid/btc-priceUsing curl with manual payment (advanced):
# Step 1: Request triggers 402
curl -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 header
curl -H "x402-payment: <signed-payment>" http://104.225.233.23:9879/paid/btc-price4. MCP Integration
Add to Claude Desktop / Cursor / Cline mcpServers config:
{
"mcpServers": {
"goldbean": {
"url": "http://104.225.233.23:9879/mcp"
}
}
}Related MCP server: oom-x402-mcp
Available Endpoints
Free (no payment needed)
Endpoint | Description |
| Service info & endpoint list |
| Health check |
| Real-time ETH price (via CoinGecko) |
| ETH gas price estimate |
| Service card / metadata |
| MCP protocol manifest |
Paid ($0.02 USDC per call)
Endpoint | Description |
| Real-time BTC price (via CoinGecko) |
| Gas price forecast |
| Market sentiment & Fear & Greed Index |
| DeFi TVL & chain data |
| Blockchain network health |
| MEV & on-chain tracker report |
| Solana token risk assessment |
How x402 Payment Works
Client GoldBean Server
โ โ
โโ GET /paid/btc-price โโโโโโโโโโโโโโค
โโโ 402 Payment Required โโโโโโโโโโโโค
โ x402-challenge: {...} โ
โ โ
โโ Sign challenge with wallet โโโโโโโค
โ (off-chain, no gas fee) โ
โ โ
โโ GET /paid/btc-price โโโโโโโโโโโโโโค
โ x402-payment: <signed> โ
โโโ 200 OK โโโโโโโโโโโโโโโโโโโโโโโโโโค
โ {"usd":"68000.00",...} โ
โ โThe facilitator (x402.org) handles settlement. Your wallet sends USDC only when challenge is accepted. No recurring charges.
Data Sources
CoinGecko API โ Real-time cryptocurrency prices
Etherscan API โ Gas price oracle
Alternative.me โ Fear & Greed Index
Seller Info
Seller wallet:
0xB5f5CBe48E0595C044Bc626f278F757463eAc2Ce(Base)Network:
eip155:84532(Base Sepolia testnet) โ migrating toeip155:8453(Base mainnet)Facilitator:
https://x402.org/facilitatorPrice: $0.02 USDC per paid call
Architecture
โโโโโโโโโโโโโโโ x402 protocol โโโโโโโโโโโโโโโโ
โ Client โ โโโโโโโโโโโโโโโโโโโโโโโบ โ VPS (USCA) โ
โ (curl/Agent)โ HTTP + 402 flow โ GoldBean ๐ซ โ
โโโโโโโโโโโโโโโ โ :9879 โ
โ โโโโโโโโฌโโโโโโโโ
โ โโโโโโโโโโโโโโโโ โ
โโโโโโโโโโบโ Email โโโโโโโโโโโโโโโโ
โ (Gmail) โ Monitor alerts
โ Monitor โ
โโโโโโโโโโโโโโโโDevelopment
# Server
cd /opt/goldbean
npm install express axios @x402/express @x402/core @x402/evm
node server.js
# Monitor
python3 /opt/goldbean/chain_monitor.pyEcosystem
Built on Bandwagon VPS (USCA-2). Part of the x402 ecosystem.
Available Tools
55 toolsbaidu_animalC
[Vision] ๅจ็ฉ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_asrB
[Voice] ่ฏญ้ณ่ฝฌๆๅญ๏ผASR๏ผ โ $0.02/call (free: 5/5 today)
Inputs: audioUrl (required).
baidu_body_analysisB
[Body] ไบบไฝๅ ณ้ฎ็นๆฃๆต โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_carB
[Vision] ่ฝฆ่พ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_deepseek_ocrC
[OCR] DeepSeek-OCR ๅคงๆจกๅOCR โ $0.02/call (free: 5/5 today)
Inputs: image (required), prompt (required).
baidu_deepthinkC
[LLM] ๆทฑๅบฆๆ่๏ผDeepSeek-R1 ้พๅผๆจ็๏ผ โ $0.005/call (free: 5/5 today)
Inputs: model (required), message (required).
baidu_dishC
[Vision] ่ๅ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_embeddingC
[NLP] ๆๆฌๅ้ๅตๅ ฅ๏ผEmbedding-V1๏ผ โ $0.01/call (free: 5/5 today)
Inputs: text (required).
baidu_face_compareD
[Face] ไบบ่ธๅฏนๆฏ โ $0.02/call (free: 5/5 today)
Inputs: image1 (required), image2 (required).
baidu_face_detectC
[Face] ไบบ่ธๆฃๆต โ $0.01/call (free: 5/5 today)
Inputs: image (required).
baidu_gestureC
[Body] ๆๅฟ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_helixfoldC
[Bio] HelixFold3 ่็ฝ่ดจ็ปๆ้ขๆต โ $0.50/call (free: 5/5 today)
Inputs: sequence (required).
baidu_idcardC
[OCR] ่บซไปฝ่ฏ่ฏๅซ โ $0.01/call (free: 5/5 today)
Inputs: image (required).
baidu_image_editD
[Image] AIๅพ็็ผ่พ๏ผQwen-Image-Edit๏ผ โ $0.05/call (free: 5/5 today)
Inputs: image (required), prompt (required).
baidu_image_enhanceC
[Image] ๅพๅๆธ ๆฐๅบฆๅขๅผบ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_image_genC
[Image] AIๅพ็็ๆ๏ผQwen-Image๏ผ โ $0.05/call (free: 5/5 today)
Inputs: n (required), prompt (required).
baidu_image_recognitionB
[Vision] ้็จ็ฉไฝ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_image_reviewD
[Image] ๅพ็ๅฎกๆ ธ โ $0.01/call (free: 5/5 today)
Inputs: image (required).
baidu_ingredientC
[Vision] ๆ่ฌ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_keyword_extractionC
[NLP] ๅ ณ้ฎ่ฏๆๅ โ $0.01/call (free: 5/5 today)
Inputs: text (required).
baidu_landmarkC
[Vision] ๅฐๆ ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_llm_chatC
[LLM] ๆๅฟๅคงๆจกๅๅฏน่ฏ๏ผERNIE็ณปๅ๏ผ โ $0.002/1K tokens/call (free: 5/5 today)
Inputs: model (required), message (required).
baidu_logoC
[Vision] Logo่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_nlpC
[NLP] ่ฏๆณๅๆ๏ผๅ่ฏ+่ฏๆงๆ ๆณจ๏ผ โ $0.01/call (free: 5/5 today)
Inputs: text (required).
baidu_object_detectC
[Vision] ้็จ็ฎๆ ๆฃๆต โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_ocrD
[OCR] ้็จๆๅญ่ฏๅซ๏ผ้ซ็ฒพๅบฆ็๏ผ โ $0.01/call (free: 5/5 today)
Inputs: image (required).
baidu_ocr_accurateC
[OCR] ้็จๆๅญ่ฏๅซ๏ผ้ซ็ฒพๅบฆ็๏ผ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_ocr_bankcardC
[OCR] ้ถ่กๅก่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_ocr_business_licenseB
[OCR] ่ฅไธๆง็ ง่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_ocr_doc_officeC
[OCR] ๅๅ ฌๆๆกฃ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_ocr_handwritingB
[OCR] ๆๅๆๅญ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_ocr_numbersC
[OCR] ๆฐๅญ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_ocr_qrcodeC
[OCR] ไบ็ปด็ ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_ocr_sealB
[OCR] ๅฐ็ซ ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_ocr_tableC
[OCR] ่กจๆ ผๆๅญ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_ocr_webimageC
[OCR] ็ฝ็ปๅพ็ๆๅญ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_paddleocr_vlC
[OCR] PaddleOCR-VL ๆๆกฃ่งฃๆ โ $0.02/call (free: 5/5 today)
Inputs: image (required), prompt (required).
baidu_plantB
[Vision] ๆค็ฉ่ฏๅซ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_qianfan_ocrC
[OCR] Qianfan-OCR 32kไธไธๆ้็จOCR โ $0.02/call (free: 5/5 today)
Inputs: image (required), prompt (required).
baidu_rerankerD
[NLP] ้ๆๅบ๏ผBCE-Reranker๏ผ โ $0.01/call (free: 5/5 today)
Inputs: query (required), documents (required).
baidu_sentimentB
[NLP] ๆ ๆๅๆ๏ผๆญฃ่ด้ขๅคๆญ๏ผ โ $0.01/call (free: 5/5 today)
Inputs: text (required).
baidu_summaryC
[NLP] ๆๆฌๆ่ฆ๏ผ่ชๅจ็ๆๆ่ฆ๏ผ โ $0.01/call (free: 5/5 today)
Inputs: text (required).
baidu_text_correctorC
[NLP] ๆๆฌ็บ ้ โ $0.01/call (free: 5/5 today)
Inputs: text (required).
baidu_text_reviewB
[NLP] ๆๆฌๅฎกๆ ธ๏ผ่ฒๆ /ๆดๆ/ๆฟๆฒป๏ผ โ $0.01/call (free: 5/5 today)
Inputs: text (required).
baidu_translateA
[Translation] ๅค่ฏญ็ง็ฟป่ฏ โ $0.01/call (free: 5/5 today)
Inputs: to (required), from (required), text (required).
baidu_ttsC
[Voice] ๆๅญ่ฝฌ่ฏญ้ณ๏ผTTS๏ผ โ $0.01/call (free: 5/5 today)
Inputs: text (required).
baidu_vehicle_detectC
[Vision] ่ฝฆ่พๆฃๆต๏ผไฝ็ฝฎ+็ฑปๅ๏ผ โ $0.02/call (free: 5/5 today)
Inputs: image (required).
baidu_video_genC
[Video] ่ง้ข็ๆ๏ผMuseSteamer๏ผ โ $0.10/call (free: 5/5 today)
Inputs: image (required), prompt (required).
baidu_video_queryC
[Video] ่ง้ข็ๆไปปๅกๆฅ่ฏข โ $0.01/call (free: 5/5 today)
Inputs: task_id (required).
baidu_vision_chatC
[LLM] ่ง่ง็่งฃๅฏน่ฏ๏ผERNIE-VL ๅคๆจกๆ๏ผ โ $0.02/call (free: 5/5 today)
Inputs: image (required), message (required).
baidu_word_embeddingC
[NLP] ่ฏๅ้่กจ็คบ โ $0.01/call (free: 5/5 today)
Inputs: text (required).
btc_priceB
[Free] BTCๅฎๆถไปทๆ ผ๏ผๅ ่ดน๏ผ โ Free/call (free: 5/5 today)
Inputs: no named parameters.
gas_priceA
[Free] ไปฅๅคชๅGas่ดนๆฅ่ฏข๏ผๅ ่ดน๏ผ โ Free/call (free: 5/5 today)
Inputs: no named parameters.
goldbean_statusA
View GoldBean MCP status โ free calls remaining, pricing, categories
Inputs: no named parameters.
weatherC
[Free] ๅฎๆถๅคฉๆฐๆฅ่ฏข๏ผๅ ่ดน๏ผ โ Free/call (free: 5/5 today)
Inputs: city (required).
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
Loading tool schema changelogโฆ
TDQS
Scored across 55 tools
Most tools have clearly distinct purposes, as indicated by their specific categories and descriptions. However, baidu_ocr and baidu_ocr_accurate have identical descriptions, causing potential ambiguity. The multitude of OCR tools for different document types is well-separated.
All tools follow a consistent 'baidu_' prefix followed by a snake_case descriptor (e.g., baidu_animal, baidu_asr). Even non-Baidu tools like btc_price adhere to a simple naming pattern. This makes the naming predictable and easy to parse.
With 55 tools, the server far exceeds the typical 3-15 tool range for a well-scoped MCP server. While the wide range of AI services justifies a larger set, the sheer number may overwhelm agents and suggests the server could be split into smaller, more focused modules.
The tool surface is remarkably comprehensive, covering vision, voice, NLP, OCR, face, image generation/editing, translation, video, and more. It appears to address most common AI API needs, with no obvious dead ends or missing core operations.
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