GoldBean: 120+ Paid APIs for AI Agents via x402 Micropayments
GoldBean is an open x402-powered API marketplace that offers 120+ paid endpoints for AI agents, developers, and applications. Every call is settled instantly with USDC on Base via the x402 protocol — no subscriptions, no credit cards, just pay-per-use at micro prices ($0.01–$0.08 per call).
What is x402?
x402 is an open standard from the Coinbase ecosystem that lets HTTP APIs request micropayments by returning HTTP 402 Payment Required. The client signs a payment with their wallet, and the server verifies it through a facilitator (like Coinbase CDP). Think of it as "PayPal for AI agents" — but fully on-chain, non-custodial, and designed for machine-to-machine payments.
🚀 What GoldBean Offers
🧠 AI & Content Generation
| Endpoint | Price | Description |
|---|---|---|
/paid/llm-chat |
$0.04 | AI chat generation |
/paid/llm-embed |
$0.02 | Text embedding |
/paid/llm-summary |
$0.02 | Long document summarization |
/paid/llm-translate |
$0.02 | Multi-language translation |
/paid/llm-code |
$0.04 | Code generation |
/paid/image-gen |
$0.05 | AI image generation |
/paid/image-analyze |
$0.03 | Image recognition |
/paid/image-upscale |
$0.02 | Image upscaling |
/paid/voice-2-text |
$0.03 | Speech-to-text |
/paid/text-2-voice |
$0.02 | Text-to-speech |
/paid/video-gen |
$0.08 | Short video generation |
/paid/video-analyze |
$0.06 | Video analysis |
🔗 Blockchain & DeFi
Gas forecasts, ETH/BTC prices, token insights, whale alerts, NFT floor prices, DeFi positions, smart contract verification, cross-chain comparisons, mempool analysis, and more — all at $0.01–$0.05 per call.
🌐 Web & Search
Web search, web crawling, news (crypto + global), social media data (Twitter, Discord, Telegram, Weibo, Instagram, TikTok), sentiment analysis, weather, maps, and more.
📄 Office & Productivity
PDF parsing/merging, Excel/Word processing, OCR, barcode generation, email verification.
🛡️ Security & Compliance
KYC checks, AML screening, address risk analysis, phish detection, virus scanning, captcha solving.
💼 E-commerce & Logistics
Product info, reviews, search, express tracking, air tickets, hotel search.
📊 Finance
Stock prices, forex rates, commodity prices, fund NAV, crypto history, stablecoin rates.
🎮 Gaming & Metaverse
Game NFT items, game wallets, metaverse land data.
🛠️ How to Use
GoldBean endpoints work with any x402-compatible client. Here's a simple example:
# Call with x402-proxy (auto-pays the 402)
npx x402-proxy https://goldbean-api.xyz/paid/llm-chat?ref=myref
# Or use the MCP server (for Claude Desktop, Cursor, etc.)
MCP Integration
GoldBean is discoverable via Bazaar (the x402 service marketplace) and works with any MCP-compatible client. Add it to Claude Desktop, Cursor, or Windsurf by configuring the MCP server to point at GoldBean's Bazaar discovery endpoint.
💰 Pricing
All prices are in USDC on Base:
| Price Range | Examples |
|---|---|
| $0.01–$0.02 | Basic queries: weather, gas, crypto price, ENS resolve, QR code |
| $0.03–$0.05 | Standard: LLM chat, image analysis, web search, KYC check |
| $0.06–$0.08 | Premium: video generation, video analysis, AI agent stats |
🔗 Links
- Marketplace: goldbean-api.xyz
- GitHub: github.com/wuzenghai616-lang/goldbean
-
Bazaar Discovery:
https://goldbean-api.xyz/__bazaar -
Wallet:
0x7484b0bca25d2ee56e9b0535572d4cf44a047d98(Base) -
Network:
eip155:8453(Base mainnet)
🎯 Roadmap
- [ ] MCP wrapper package —
npm install @goldbean/mcpfor one-line Claude/Cursor setup - [ ] Subscription plans — Quant, Social, Merchant bundles at $29–$99/month
- [ ] Cross-chain — Solana and Arbitrum support
- [ ] Developer dashboard — Usage analytics, API keys, spending controls
Built with the x402 protocol. Payments verified via Coinbase CDP Facilitator. Part of the awesome-x402 ecosystem.
